Kubota U25 - Super Series Operator's Manual

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U.S.A. : KUBOTA TRACTOR CORPORATION 3401 Del Amo Blvd., Torrance, CA 90503, U.S.A. Telephone : (310)370-3370 Western Division : 1175 S. Guild Avc., Lodi, CA 95240 Telephone : (209)334-9910 Central Division : 14855 FAA Blvd., Fort Worth, TX 76155 Telephone : (817)571-0900 Northern Division : 6300 at One Kubota Way, Groveport, OH 43125 Telephone : (614)835-1100 Southeast Division : 1025 Northbrook Parkway, Suwanee, GA 30024 Telephone : (770)995-8855

Canada : KUBOTA CANADA LTD. 590014th Avenue, Markham, Ontario, L3S 4K4, Canada Telephone : (905)294-7477 France : KUBOTA EUROPE S.A.S 19-25, Rue Jules Vercruysse, Z.I. BP88, 95101 Ar.enteuil Cedex, France Telephone : (33)1-3426-3434 Italy : KUBOTA EUROPE S.A.S Italy BranchVia Grandi, 2920068 Peschiera Borrome (MI) ItalyTelephone : (39)02-51650377 Germany : KUBOTA BAUMASCHINEN GmbH Steinhauser str, 100, 66482 Zweibrucken Rheinlandpfalz GermanyTelephone : (49)6332-4870100 U.K. : KUBOTA (U.K.) LTD.Dormer Road, Thame, Oxfordshire, OX93UN, U.K. Telephone : (44)1844-214500 Australia : KUBOTA TRACTOR AUSTRALIA PTY LTD. 25-29 Permas Way, Tru.anina, VIC 3029, Australia Telephone : (61)-3-9394-4400 Malaysia : SIME KUBOTA SDN. BHD. No.3 Jalan Sepadu 25/123 Taman Perindustrian Axis, Seksyen 25, 40400 Shah Alam, Selan.or Darul Ehsan MalaysiaTelephone : (60)3-736-1388 Philippines: KUBOTA PHILIPPINES, INC. 232 Quirino Hi.hway, Baesa, Quezon City 1106, PhilippinesTelephone : (63)2-422-3500 Taiwan : SHIN TAIWAN AGRICULTURAL MACHINERY CO., LTD. 16, Fen.pin.2nd Rd, Taliao Shian. Kaohsiun.83107, Taiwan R.O.C. Telephone : (886)7-702-2333 Thailand : SIAM KUBOTA CORPORATION CO., LTD. 101/19-24 Moo 20, Navanakorn Industrial Estate, Tambon Khlon.nuen., Amphur Khlon.luan., Pathumthani 12120, THAILAND Telephone : (66)2-909-0300 Japan : KUBOTA CorporationFarm & Industrial Machinery International Operations Headquarters2-47, Shikitsuhi.ashi 1-chome, Naniwa-ku, Osaka, Japan 556-8601 ABBREVIATION LIST

Abbreviations Definitions AI Auto Idle API American Petroleum Institute ASTM American Society for Testing and Materials, USA CECE Committee for European Construction Equipment DIN Deutsches Institut für Normung, GERMANY (German Institute for Standardization) EN European Standard FRONT Front means the direction towards the boom and dozer Hi High speed ISO International Organization for Standardization JIS Japanese Industry Standard L Volume (Liter) L/min Liter per minute Lo Low speed MIL Military Standard OPG Operator Protective Guards OSHA Occupational Safety and Health Administration rpm Revolutions Per Minute ROPS Roll-Over Protective Structure SAE Society of Automotive Engineers, USA TPSS Two Pattern Selection System

IMPORTANT The engine in this machine is not equipped by the manufacturer with a standard spark arrester. It is a violation of California Public Resource Code Section 4442 to Use or operate this engine on or near any forest-covered, brush-covered land, or grass-covered land unless the exhaust system is equipped with a working spark arrester meeting state laws. Other states or federal areas may have similar laws.

Canadian Electromagnetic Compatibility (EMC): This machine complies with Industry Canada ICES-002.

U25 English (U.S.A.) AU. L. 13-21. 1. K

GENERAL SYMBOLS

The instruments and operation elements have been marked with a series of symbols in order to simplify the opera­tion of your excavator. These symbols are listed below with the respective descriptions.

Safety alert Symbol Alarm lamp “Fuel level too low” Alarm lamp “Engine Oil pressure “ Alarm lamp “Battery charge” Horn Diesel Hydraulic fluid Fast Slow Excavator - Overhead movement toward the front Excavator - Overhead movement toward the rear Boom raise Boom lower Arm out Arm in Bucket in Bucket dig / rollback Boom swing (left) Boom swing (Right) Dozer raise Dozer lower Operation direction of control lever Operation direction of control lever Read operator’s manual Lock Unlock

FOREWORD

SAFETY FIRST This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully. It is essential that you read the instructions and safety regulations before you attempt to assemble or use this unit. DANGER : Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING :Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION : Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. IMPORTANT : Indicates that equipment or property damage could result if instructions are not followed. NOTE : Gives helpful information.

CONTENTS

SAFE OPERATION ............................................................................................ -1

DEALER SERVICE...................................................................................................... 1

TECHNICAL DATA...................................................................................................... 2

DESCRIPTION OF MACHINE PARTS........................................................................ 3

INSTRUMENT PANEL AND CONTROL ELEMENTS................................................. 4

CHECKS BEFORE START ......................................................................................... 7

DAILY CHECKS....................................................................................................... 7

SLIDING THE SEAT ................................................................................................ 7

OPENING AND CLOSING OF PARTS.................................................................... 8

Opening / Closing of the Engine Hood .............................................................................8

Opening and Closing of the Fuel Tank Cover...................................................................8

Keeping the Tools.............................................................................................................9

Operator's Manual Storage...............................................................................................9

HANDLING THE SAFETY DEVICES....................................................................... 9

Control Lever Lock............................................................................................................9

Roll-Over Protective Structures (ROPS) / Operator Protective Guards of Top Guard Level

I (OPG (Top Guard Level I))...........................................................................................10

OPERATION OF THE ENGINE................................................................................. 11

STARTING THE ENGINE...................................................................................... 11

Display Selector Switch..................................................................................................12

Battery Charge Lamp......................................................................................................14

Engine Oil Pressure Warning Lamp ...............................................................................14

Glow Lamp......................................................................................................................15

LCD for Normal Operation..............................................................................................15

LCD for Warning.............................................................................................................16

Warning Lamp ................................................................................................................17

Checkpoints after Starting the Engine............................................................................17

STARTING THE ENGINE UNDER COLD CONDITIONS...................................... 18

STOPPING THE ENGINE...................................................................................... 18

Engine Stop Lever..........................................................................................................18

STARTING WITH AN AUXILIARY BATTERY ....................................................... 18

Observe Following Guidelines when Starting with an Auxiliary Battery..........................19

EXCAVATOR OPERATION ...................................................................................... 20

RUNNING-IN OF THE NEW EXCAVATOR........................................................... 20

Do not Work with Full Engine Rpm's or Full Loads during the First 50 Working Hours..20

Oil Change in the Run-in Stage......................................................................................20

Seat Belt.........................................................................................................................20

STARTING............................................................................................................. 20

Adjusting the Operator's Seat.........................................................................................20

Lock Lever......................................................................................................................21

Working Light Switch......................................................................................................21

Travel Buzzer (Option)....................................................................................................21

TWO PATTERN SELECTION SYSTEM (TPSS)................................................... 22

CONTENTS

Pattern Change...............................................................................................................22

OPERATION OF THE BOOM................................................................................ 23

OPERATION OF THE ARM................................................................................... 23

OPERATION OF BUCKET .................................................................................... 24

SWIVEL(UNIT SWING)OPERATION .................................................................... 24

BOOM SWING OPERATION................................................................................. 24

OPERATION OF THE DOZER .............................................................................. 24

SERVICE PORT OPERATION .............................................................................. 25

DRIVING ................................................................................................................ 25

Drive Levers (Right, Left)................................................................................................26

Travel Speed Switch.......................................................................................................26

TURNS................................................................................................................... 27

Pivot Turn .......................................................................................................................27

Spin Turn........................................................................................................................28

UP AND DOWNHILL TRAVELLING ...................................................................... 28

PARKING ON A SLOPE ........................................................................................ 29

IMPORTANT INFORMATION ON EXCAVATOR OPERATION ............................ 29

TRANSPORTING THE EXCAVATOR ON A TRUCK................................................ 30

LIFTING OF THE EXCAVATOR................................................................................ 32

MAINTENANCE......................................................................................................... 34

MAINTENANCE INTERVALS................................................................................ 34

DAILY CHECKS..................................................................................................... 37

Check Fuel Level............................................................................................................37

Check Engine Oil Level ..................................................................................................38

Check Hydraulic Oil Level...............................................................................................38

Checking Coolant Level..................................................................................................39

Washing Whole Machine................................................................................................39

Lubrication Points...........................................................................................................39

Check Fan Belt...............................................................................................................40

Cleaning of Engine and Electrical Wiring........................................................................40

Check Radiator and Oil cooler........................................................................................40

REGULAR CHECKS AND MAINTENANCE WORK ................................................. 41

EVERY 50 SERVICE HOURS ............................................................................... 41

Draining the Water from the Fuel Tank...........................................................................41

Draining Water Separator...............................................................................................41

Battery ............................................................................................................................42

Battery Charging.............................................................................................................43

Greasing of Swing Bearing Teeth...................................................................................43

EVERY 200 SERVICE HOURS ............................................................................. 44

Checking Fan Belt Tension.............................................................................................44

Checking Radiator Hoses and Clamps...........................................................................44

Inspection and Cleaning Air Filter Element.....................................................................45

Air Filter Maintenance.....................................................................................................45

Greasing Swing Bearing.................................................................................................45

Checking Fuel Line and Intake Air Line..........................................................................46

EVERY 250 SERVICE HOURS ............................................................................. 46

Lubrication of the Pilot Valve..........................................................................................46

EVERY 500 SERVICE HOURS ............................................................................. 46

CONTENTS

Changing Engine Oil (Change the engine oil every 500 hours, or every 1 year in the case

that service hour is less than 500 hours)........................................................................46

Replacing Engine Oil Filter Cartridge (Replace the engine oil filter every 500 hours, or

every 1 year in the case that service hour is less than 500 hours).................................47

Drive Unit Oil Change (First Oil Change of the 100 hours).............................................48

Replacing Fuel Filter Cartridge.......................................................................................48

Replacing Hydraulic Return Filter Element (First replacement after 250 service hours) 49

EVERY 1000 SERVICE HOURS ........................................................................... 49

Cleaning of the Pipe filter of the Hydraulic Pilot System (for Hydraulic Pilot Types)......49

Replacing the Hydraulic Pilot Filter Element...................................................................49

Hydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank) 50

Hydraulic Oil Check with Hydraulic Breakers .................................................................51

EVERY 1000 SERVICE HOURS OR ONCE A YEAR ........................................... 51

Replacing Air Filter Element...........................................................................................51

EVERY 1500 SERVICE HOURS ........................................................................... 51

Checking Fuel Injection Nozzle (Injection Pressure)......................................................51

EVERY 2000 SERVICE HOURS ........................................................................... 51

Changing Front Idler and Track Roller Oil......................................................................51

Checking the Alternator and Starter Motor.....................................................................51

EVERY 3000 SERVICE HOURS ........................................................................... 51

Checking Injection Pump................................................................................................51

ANNUAL SERVICING............................................................................................ 52

Electrical Wiring and Fuses............................................................................................52

Checking the Electrical Circuit........................................................................................52

BIENNIAL SERVICING.......................................................................................... 52

Replacement of Radiator Hoses and Hose Clamps.......................................................52

Changing Radiator Coolant ............................................................................................52

Replacing Fuel Hoses and Hose Clamps.......................................................................53

Replacing Intake Air line.................................................................................................53

OTHER ADJUSTMENTS AND REPLACEMENTS.................................................... 54

PURGING OF THE FUEL SYSTEM ...................................................................... 54

ADJUSTMENT OF TRACKS ................................................................................. 54

Special Information when Using Rubber Tracks.............................................................55

CHANGING THE BUCKET.................................................................................... 56

FUSES ................................................................................................................... 56

Replacing Fuses.............................................................................................................56

Fuse Capacities and Circuits..........................................................................................56

Slow Blow Fuse..............................................................................................................56

TROUBLESHOOTING............................................................................................... 57

KUBOTA I.C.S. NAVIGATION LIST OF ERROR CODE ....................................... 58

OPERATION UNDER COLD WEATHER CONDITIONS .......................................... 63

PREPARATION FOR OPERATION IN COLD WEATHER.................................... 63

PROCEDURE AFTER DONE WORK.................................................................... 63

LONG STORAGE...................................................................................................... 64

RECOMMENDED OILS............................................................................................. 66

BIODIESEL FUEL (BDF) ....................................................................................... 68

MAIN DIMENSIONS.................................................................................................. 70

CONTENTS

LIFTING CAPACITY.................................................................................................. 71

SAFE OPERATION

SAFE OPERATION

The best insurance against accidents is to abide by the safety regulations. Read and understand this section carefully, before operating the excavator. Every user, however experienced, should carefully read and understand this section and those of the attachments and accessories before taking the excavator into operation. The owner is obliged to inform the operators of these instruction in detail. Keep this manual in the storage place. (See "Operator's Manual Storage" in "CHECKS BEFORE START" section.) 1. BEFORE OPERATION 1. Make yourself acquainted with the excavator and be aware of its limits. Read the operating instructions carefully before starting the excavator.

2. Obey the danger, warning and caution labels on the machine.

3. For your safety, a ROPS/OPG (Top Guard Level I)

with a seat belt is installed by KUBOTA. A ROPS: Roll-Over Protective Structure A OPG (Top Guard Level I): Operator Protective Guards of Top Guard Level I OPG (Top Guard Level I) in accordance with ISO10262 is equivalent in definition to FOPS (Falling Object Protective Structure). Always use the seat belt when the machine is equipped with a ROPS/OPG (Top Guard Level I). Do not modify structural members of ROPS by welding, drilling, bending, grinding or cutting, as this may weaken the structure. If any component is damaged, replace it. Do not attempt repairs. If ROPS is loosened or removed for any reason, make sure all parts are reinstalled correctly. Tighten mounting bolts to proper torque. 4. The seat belt must be inspected regularly and replaced if damaged.

5. Always sit in the operator's seat when starting engine or operating levers or controls.

6. Study control lever pattern A and pattern B. Then choose the one which is most familiar. Familiarize yourself with the pattern selected by operation slowly at low engine speed.

A Engage the lever lock to prevent accidental pattern change.

7. Do not operate the excavator while under the influence of alcohol, medication, controlled substances or while fatigued.

8. Check the surroundings carefully before using the excavator or when attachments are being attached.

A Pay attention to the overhead clearance with electric wires.

A During excavator use, do not allow any persons within the working range. 9. Do not allow other persons to use the machine before having informed him on the exact operation and work instructions, and be assured that the operator's manual has been read and completely understood. 10.Do not wear baggy, torn or oversized clothing when working with the excavator. Clothing can get caught in rotating parts or control elements which can cause accidents or injuries. Wear adequate safety clothing, e.g. safety helmet, safety shoes, eye protection, ear protection, working gloves, etc., as necessary and as prescribed by law or statutes.

(1) Helmet (7) Straw hat

(2) Clothing fit for work (8) Towel

(3) Tight seams (9) Baggy trousers

(4) Good grip footwear (10) Loose cuffs of the shirt

(5) Well fitting cuffs (11) Baggy shirt

(6) Working gloves (12) Rubber sandals

11.Do not allow passengers to ride on any part of the excavator at anytime. The operator must remain in the excavator seat during operation. 12.Check mechanical parts for correct adjustments and wear. 13.Keep your excavator clean. Heavy soiling, grease, dust and grass can cause fires, accidents or injuries. 14.Use only KUBOTA authorized attachments. 15.Before starting the excavator, be absolutely sure that the excavator has been filled with fuel, lubricated, greased and undergone all necessary maintenance. 16.Do not modify the excavator, otherwise it could lead to unforeseen safety problems. 17.Do not hammer anything that is above the operator's seat level. Objects may fall into the operator station of mini-excavator from front. 18.Make sure attachments, particularly those utilizing quick attach systems, are securely mounted. SAFE OPERATION

2. STARTING OF THE EXCAVATOR 1. Get into and out of the machine safely. Always face the machine. Always use handrails and available steps and keep yourself well balanced. Do not hold any of the control levers and switches. Do not jump on or off the machine, whether stationary or in motion.

2. Start and control the excavator only from the operator's seat. The driver should not lean out of his seat when the engine is running.

3. Before starting the engine, make sure that lock levers are in position "Lock" and all control levers and pedals are in their neutral positions and the seat belt is fastened correctly. Before starting the engine, make sure that the control levers, travel lever, pedals and other control elements are not stuck and can be moved smoothly. If stuck, for example, a lever may fail to return, possibly putting you in danger. If anything wrong is found, immediately pinpoint the cause and correct it.

4. Make sure that the dozer blade is in front of you. (The dozer blade must be raised.) If the levers are activated with the dozer blade at the rear, the tracks will move in the opposite direction of the drive levers.

5. Do not operate or idle engine in a non-ventilated area. Carbon monoxide gas is colorless, odorless, and deadly.

6. Keep all safety equipment and covers in place. Replace damaged or missing safety devices.

7. Precautions against tipping over. Keep away from steep slopes and embankments. Do not swing the bucket downhill. Lower the dozer blade during digging. Keep the bucket as low as possible while driving uphill. Turn slowly on slopes (at reduced speed). Do not place the excavator near the edges of trenches and banks, as the earth can give away due to the weight of the excavator. ALLOWABLE CLIMBING ANGLE : 36 % (20 deg.) ALLOWABLE ANGLE IN CASE OF CROSSING SIDEWAY : 27 % (15 deg.)

8. Watch out at all times for the area to which the excavator is being moved. Pay attention to any hindrances.

9. Keep enough distance from trench and bank edges.

C Safety for children Tragedy can occur if the operator is not alert to the presence of children. Children generally are attracted to machines and the work they do. 1. Never assume that children will remain where you last saw them.

2. Keep children out of the work area and under the watchful eye of another responsible adult.

3. Be alert and shut your machine down if children enter the work area.

4. Never carry children on your machine. There is not a safe place for them to ride. They may fall off and be run over or interfere with your control of the machine.

5. Never allow children to operate the machine even under adult supervision.

6. Never allow children to play on the machine or on the attachments.

7. Use extra caution when backing up. Look behind and down to make sure the area clear before moving.

8. When parking your machine, if at all possible, park on a firm, flat and level surface; if not, park across a slope. Lower the bucket and dozer to the ground, remove the key, place the control lock levers in the locked position from the ignition and lock the cab door (if equipped), before you leave.

3. AFTER OPERATION Before leaving the machine, A Park the excavator on a firm, flat and level surface. A Lower the attachments and the dozer blade to the

ground. A Stop the engine. A Release pressure trapped in the hydraulic system. A Lock all control levers. A Remove the key.

(1) Pilot control lock lever (A) "Unlock" (B) "Lock"

4. SAFE LOADING AND TRANSPORT OF THE EXCAVATOR 1. Observe all regulations concerning the transport of excavators on public roads.

2. Use adequately long and robust ramps when loading on the machine. (for details see "TRANSPORTING THE EXCAVATOR ON A VEHICLE")

3. Do not change the running direction and to avoid a tipping over, do not try to swing the attachment crosswise to the loading ramps.

4. Lower the attachment on the loading bed and release the pressure from the hydraulic system. After loading the excavator on the truck, block the tracks with blocks and cable down the excavator.

5. Avoid abrupt braking of the vehicle with the excavator loaded. Sudden braking cause the excavator to move and may cause a serious accident.

6. If the excavator is to tow another machine, make sure the load is smaller than the strength of the hook, tow chain or cable.

7. Do not use hooks on the roof of canopy or CAB for lifting the excavator.

Max. drawbar pull at coupling hook 70450 N (15838 lbf, 7184 kgf) Max. vertical load at coupling hook 7210 N (1621 lbf, 735 kgf)

5. MAINTENANCE Before doing maintenance work on the excavator, place the machine on even solid ground, lower the attachments to the ground, stop the engine and remove the key. When dismantling hydraulic parts, make sure that the hydraulic oil has cooled down sufficiently to avoid burns. Start maintenance work carefully, e.g. loosen plug slowly so that oil will not squirt out. 1. Before doing work on the engine, the exhaust system, the radiator and the hydraulics, let the excavator cool down sufficiently.

2. Turn off the engine at all times when filling with fuel. Avoid spilling and over-filling of fuel.

SAFE OPERATION

3. Smoking is prohibited while refueling or handling the battery. Keep sparks and fire away from the fuel tank and battery. Flammable gases escape from the battery, especially during charging.

4. Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark. Otherwise, the battery component parts may be prematurely deteriorated, which may shorten the battery's service life or cause an explosion. Check the fluid level regularly and add distilled water as required so that the fluid level is between the UPPER and LOWER levels.

5. Read and follow the directions "STARTING WITH AN AUXILIARY BATTERY" in "OPERATION OF THE ENGINE", when starting with an auxiliary battery.

6. Keep a first-aid box and a fire extinguisher at hand at all times.

7. Do not open the radiator cap before the radiator has cooled down sufficiently First loosen the cap to the first stop and allow the system enough time to release the remaining pressure. Then loosen the cap completely.

8. To avoid short-circuiting the battery, always remove the ground cable first and attach the positive cable first.

9. Leaking hydraulic fluid has enough pressure to penetrate the skin and cause serious injuries. Leakages from pin holes can be totally invisible. Do not use hands for checking for leaks. Always use a piece of wood or cardboard. It is strongly recommended to use a face mask or eye protection. Should injuries occur with leaking hydraulic fluid, contact a doctor immediately. This fluid can cause gangrene or serious allergic reactions.

10.To avoid environmental damage from acid and heavy metals, do not throw the battery away. 11.Observe all laws and regulations concerning the disposal of used oil, coolants, solvents, hydraulic fluids, battery acids and batteries. 12.To avoid fire, do not heat the hydraulic components (tanks, pipes, hoses, cylinders) before they have been drained and washed. 13.Use a face mask or eye protection to protect the eyes and respiratory system against dust and other foreign particles.

14.Securely support excavator with stands or suitable blocking before working underneath. For your safety, do not work under any hydraulically supported devices. They can settle, suddenly leak down, or be accidentally lowered. 15.Do not dismantle the spring of the track tensioner. If dismantling is necessary, contact your KUBOTA dealer where the machine was purchased, or competent service shop. The assembly must be done according to the work shop manual of KUBOTA (W.S.M.) for the product involved. 16.When lifting the machine itself with an attachment, place a safety block or safety post to prevent the machine from turning over. Keep the lock lever for attachment control in the "LOCK" position.

17.KUBOTA uses no parts which are lined with asbestos. Do not use these kind of parts even if they are available and can be installed. 18.Fire prevention Excavator and some attachments have components that are at high temperatures under normal operating conditions. The primary source of high temperatures is the engine and exhaust system. The electrical system, if damaged or incorrectly maintained, can be a source of arcing or sparks.

The following fire prevention guidelines will help to keep your equipment up and running efficiently and keep the risk of fire to a minimum. A Blow off all accumulated debris near hot engine exhaust components such as turbocharger and exhaust manifold as well as exhaust pipes and muffler more frequently when working in severe conditions. A Clean out all accumulated flammable debris such as leaves, straw, pine needles, branches, bark, small wood chips and any other combustible materials from inside the machine belly pans or lower unit structures as well as from area in proximity to the engine. A Inspect all fuel lines and hydraulic hoses for wear or for deterioration. Replace them immediately if they begin to leak. A Examine electrical wiring and connectors frequently for damage. Repair any wires that are loose or frayed before operating the machine. Clean all electrical connections and tighten all electrical connections as necessary. A Inspect the exhaust system daily for any signs of leakage. Check for broken pipes and muffler and also for loose or missing bolts, nuts and clamps. If any exhaust leaks or fractured parts are found, repairs must be completed prior to operation. A Always keep a multipurpose fire extinguisher on or near the machine. Be familiar with the operation of the fire extinguisher. SAFE OPERATION

SAFE OPERATION

(1) Code No. RC418-5725-1 [Both sides] (2) Code No. RD118-5737-1

7. CARE OF DANGER, WARNING AND CAUTION LABELS 1. Keep danger, warning and caution labels clean and free from obstructing material.

2. Clean danger, warning and caution labels with soap and water, and dry with a soft cloth.

3. Replace damaged or missing danger, warning and caution labels with new labels from your KUBOTA dealer.

4. If a component with danger, warning and caution label(s) affixed is replaced with new part, make sure new label(s) is (are) attached in the same location(s) as the replaced component.

5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside edge.

DEALER SERVICE

DEALER SERVICE

Your KUBOTA dealer is always ready to help so that your excavator offers the best performance. After having carefully read this manual, you will realize that much of the routine maintenance can be done by yourself. Your KUBOTA dealer is responsible for servicing and the delivery of spare parts. When ordering spare parts from your KUBOTA dealer, always mention the serial number of the excavator and the engine. Note these numbers right away in the supplied lines.

Model Serial No. Excavator Engine Dealer's name (To be filled in through the owner)

(1) Serial No.

(1) Engine serial No.

TECHNICAL DATA

TECHNICAL DATA

KUBOTA EXCAVATOR Model name U25 Type Canopy Operating weight (including operator's) kg (lbs.) 2545 (5611) Engine Type Water cooled 3 cylinder diesel engine Model name KUBOTA D1105-E4-BH-1 Total displacement cc (cu.in) 1123 (68.5) Engine power SAE gross kW (HP) 15.6 (20.9) Net kW (HP) 14.8 (19.8) Rated speed rpm 2400 Low idle speed rpm 1300 to 1400 Performance Unit swing speed rpm 9.8 Travel speed Fast km/h (mph) 4.5 (2.8) Slow km/h (mph) 2.5 (1.6) Ground kPa pressure (kgf/ ) (With operator) [psi] 22.9 (0.23) [3.27] Climbing angle % (deg) *36 (20) Angle in case of crossing slope % (deg) *27 (15) Dozer Width X Height mm (in.) 1500 x 300 (59.1 x 11.8) Boom swing angle Left rad (deg) 1.31 (75) Right rad (deg) 0.96 (55) Pressure connection for attachments Max.displacement (Theoretical) L (US gal)/min 48.0 (12.7) Max. pressure Mpa (kgf/ ) [psi] 21.6 (220) [3130] Fuel tank capacity L (US gal) 28 (7.4)

A Above dimensions are based on the machine with rubber tracks and JPN bucket. JPN = made in Japan A Specifications subject to change without notice. D With unloaded digging bucket. D Firm compacted soil.

D Operators must exercise extra caution and follow instructions in the operator's manual. D Worse condition or heavier attachment to the above will decrease climbing angle. DESCRIPTION OF MACHINE PARTS

DESCRIPTION OF MACHINE PARTS

DEPICTED CONTENTS (1) Arm

(2) Bucket cylinder

(3) Bucket link

(4) Bucket

(5) Swing bracket

(6) Dozer cylinder

(7) Dozer blade

(8) Arm cylinder

(9) Boom

(10) Operator's seat

(11) Engine hood

(12) Drive sprocket

(13) Front idler

(14) Working light (option)

INSTRUMENT PANEL AND CONTROL ELEMENTS

B Instrument Panel, Switches

DEPICTED CONTENTS (1) Starter switch

(2) LCD

(3) Working light switch

(4) Horn switch

(5) Travel speed switch

(6) User setting switch (switch 2)

(7) Display selector switch (switch 3)

B Instrument Panel

DEPICTED CONTENTS (1) Speed indicator light

(2) Aux operation lamp

(3) Periodic check lamp

(4) Clock setting request lamp

(5) Glow lamp

(6) Remaining fuel warning lamp

(7) Engine oil pressure warning lamp

(8) Battery charge lamp

(9) Coolant temperature warning lamp

(10) Warning lamp

(11) Fuel gauge

(12) Coolant temperature gauge

(13) LCD

B Control Pedals and Levers

DEPICTED CONTENTS (1) Throttle lever

(2) Drive lever (left)

(3) Drive lever (right)

(4) Control lever for front attachments (left)

(5) Control lever for front attachments (right)

(6) Dozer control lever

(7) Service port pedal

(8) Boom swing pedal

(9) Lock lever*

D When the lock lever pulled up prevents inadvertent machine movement. CHECKS BEFORE START

CHECKS BEFORE START

DAILY CHECKS In order to avoid damage, it is important to check the condition of the excavator before starting.

To avoid personal injury: A Do maintenance work on the excavator only on even ground with the engine off and the stop lever in the "Lock" position. Checks Go around the excavator and check for visual damage and wear. Check coolant level. (See regular checkpoints in the chapter on maintenance.) Check fuel level. Check engine oil level. Check hydraulic fluid level. Check air filter for clogging. Check all control lamps, indicators, revolution counter and hour meter. Check the light system. Check the condition of the safety and warning labels. (See "DANGER, WARNING AND CAUTION LABELS" in "SAFE OPERATION" .)

SLIDING THE SEAT

To avoid personal injury: A Lock the lever for attachment control when sliding the seat. To slide the seat forward, pull the seat sliding lock lever and tilt the seat forward.

(1) Seat sliding lock lever (A) "Sliding forward"

(2) Lock lever for attachment control (B) "Lock"

CHECKS BEFORE START

OPENING AND CLOSING OF PARTS BOpening / Closing of the Engine Hood

To avoid personal injury: A Do not touch the exhaust muffler or the exhaust pipe; serious burns can occur.

BOpening and Closing of the Fuel Tank Cover To open the tank cover, first insert the key into the key slot and turn it counterclockwise to unlock, then open the tank cover upward. For closing, return the tank cover to original position and turn the key clockwise to lock, then remove the key. Insert the key into the key hole and turn it clockwise to unlock, and lift up the hood until the stay locks automatically. For closing, lift up the hood and release the stay. Push down the hood until it locks automatically.

(1) Key (A) Unlock

(2) Tank cover

(3) Stay

CHECKS BEFORE START

HANDLING THE SAFETY DEVICES BKeeping the Tools BControl Lever Lock Pull the seat sliding lock lever and slide the seat forward.

A When the excavator is not used or left unattended, be sure to place the lock lever in position "Lock". The attachment control lever lock is located on the left side. (1) Seat sliding lock lever (A) "Sliding forward"

(2) Lock lever for attachment control (B) "Lock"

BOperator's Manual Storage

(1) Operator's manual

BRoll-Over Protective Structures (ROPS) / Operator Protective Guards of Top Guard Level I (OPG (Top Guard Level I)) For your safety, ROPS / OPG (Top Guard Level I) with a seat belt is installed with your machine. A ROPS / OPG (Top Guard Level I) label is fastened to the ROPS / OPG (Top Guard Level I). This label shows the serial No. of ROPS / OPG (Top Guard Level I), gross weight, approval and regulation No. and model No. of the machine.

ROPS MODEL No. ROPS PARTS No. MAX. GROSS MACHINE MASS U25 CANOPY RFP 2820 RB419-4531 2820 kg (6217 lbs)

To avoid personal injury or death: A Do not modify a ROPS / OPG (Top Guard Level

I) in any way. Welding, grinding, bending, drilling or cutting any portion of the ROPS / OPG (Top Guard Level I) may weaken the structure. Do not repair a damaged ROPS / OPG (Top Guard Level I). A damaged ROPS / OPG (Top Guard Level I) structure must be replaced, not repaired or revised. If any structural member of the ROPS / OPG (Top Guard Level I) is damaged, replace the entire structure at your local KUBOTA dealer. Check the seat belt daily and replace it if damaged or frayed. A Do not remove the ROPS / OPG (Top Guard Level I) except for service. Install the ROPS / OPG (Top Guard Level I) correctly before you operate the machine again. QTY. Grade Tightening Torque Bolt M14 2 9T 124 to 147 N-m (12.6 to 15.0 kgf-m) Bolt M16 2 9T 196 to 226 N-m (20.0 to 23.0 kgf-m) Nut M14 4 6T 108 to 126 N-m (11.0 to 12.8 kgf-m) Nut M16 4 6T 167 to 191 N-m (17.0 to 19.5 kgf-m)

A Do not install any attachments that will cause the total gross weight of the machine to exceed the weight shown in the "FOR MAXIMUM GROSS MACHINE WEIGHT" space on the ROPS / OPG (Top Guard Level I) label.

OPERATION OF THE ENGINE

A Read "SAFE OPERATION" at the beginning of this operator's manual. A Obey the danger, warning and caution labels on the excavator. A To avoid the danger of exhaust fume poisoning, do not operate the machine in a closed building without proper ventilation. A Always start the engine from the operator's seat. Do not start the engine while standing next to the excavator. Before starting the engine, sound the horn to get the attention of persons standing nearby.

A Do not use starting fluid or ether. A In order not to overload the battery and starter, avoid engaging the starter more than 10 sec. A When engine does not start in 10 sec., please wait 20 sec. or more, before attempting to restart.

STARTING THE ENGINE

A The operator should not depend solely on the warning lamps, but should always conduct the routine checks (see "MAINTENANCE"). Start the engine in the following manner: 1. Before starting the engine, make sure that all control levers are in the neutral positions.

4. Turn the key to the position "START" and release after the engine has started.

5. Check if oil lamp and charge lamp have gone out. Should a warning lamp still be lit up, stop the engine then remove the key and check for the cause.

A When the pilot control lock levers are in "UNLOCK" position, the engine does not start.

BDisplay Selector Switch Press the display selector switch while the engine is running. The LCD meter display will change from one indication mode to the other. Change the three-mode display according to your jobs.

C Setting the clock [Selecting the clock setting mode]

1. Turn the starter key to the position "RUN".

2. Press the user setting switch (switch 2 (1)).

3. Select the clock setting mode by pressing the display selector switch (switch 3 (2)) and the clock setting request lamp " " on the instrument panel lights up.

A With the starter key at the "STOP" position, press the electronic meter's display selector switch, and the LCD

shows the hour meter for 10 seconds.

A Press switch 3 (2) for a long time and the year, month, day, hour and minute will be selected in this order.

[Setting the year] [Setting the day]

Press switch 2 (1) and the numeric setting will be smaller. Press switch 3 (2) and the numeric setting will be larger.

Switch 2 Switch 3 2015 2017 2014 2016 2013 2015

A While setting the clock, the clock setting request lamp on the instrument panel is blinking. [Setting the month]

Press switch 2 and the numeric setting will be smaller. Press switch 3 and the numeric setting will be larger.

Switch 2 Switch 3 10 12 9 11 8 10

Press switch 2 and the numeric setting will be smaller. Press switch 3 and the numeric setting will be larger.

Switch 2 Switch 3 09 11 08 10 07 09

[Changing the AM/PM system to the 24-hour system] Select the AM/PM system or 24-hour system by pressing switch 3.

[Setting the hour]

Press switch 2 and the numeric setting will be smaller. Press switch 3 and the numeric setting will be larger.

Switch 2 Switch 3 11 13 (or 01) 10 12 9 11

[Setting the minute]

Press switch 2 and the numeric setting will be smaller. Press switch 3 and the numeric setting will be larger.

BBattery Charge Lamp This warning lamp lights up if the charging system fails while the engine is running. When the starter switch is turned "ON" with the engine off, the lamp lights up, and when the engine gets started, the lamp goes out.

A If there is disconnection or failure in the charging system when the key is turned to "RUN", the following symbol will appear.

Switch 2 Switch 3 50 52 49 51 48 50

If switch 3 is pressed for a long time, the new settings will be made.

A If the battery is disconnected, the clock setting request lamp " " (yellow) will blink for requesting the setting the clock.

BEngine Oil Pressure Warning Lamp The engine oil pressure warning lamp lights up due to failure of the lubricating system with the engine running. When the starter switch is turned "ON" with the engine off, this lamp lights up, and when the engine starts, the lamp goes out. If the lamp stays on with the engine running, stop the engine and check the engine oil level.

A If there is disconnection, failure or breakdown in the lubricating system when the key is turned to "RUN", the following symbol will appear.

(1) Engine oil pressure warning lamp BGlow Lamp With the starter key at the "RUN" position, the engine's preheat status is indicated.

A When the starter switch is turned to the "RUN" position, the engine will be preheated for a given period of time and the indicator will turn on. A The above indication appears momentarily when the engine is started, but it does not indicate trouble. (This is because the oil charge sensor output fluctuates when the engine is started.) A The following symbol appears momentarily as the engine starts. This is not an error.

BLCD for Normal Operation C Fuel gauge

To avoid personal injury: A Before adding fuel, be sure to stop the engine. A Be sure to keep open flame away from the

machine. Otherwise a fire may result. If the fuel in the tank goes below the prescribed level, the warning lamp will flash. If this should happen during operation, refuel as soon as possible.

(1) Fuel gauge (A) "FULL"

(2) Remaining fuel warning lamp (B) "EMPTY"

A If the fuel gauge indicator is near the "", add fuel as soon as possible. If the indicator is near "" and the machine operates on a slope, the engine may run out of fuel.

A To open the fuel cap, keep the starter key inserted. C Coolant Temperature Gauge

To avoid personal injury: A Do not open the radiator cap during or just after operation. Hot coolant may gush out and scald you. Wait for the coolant to cool down before opening the cap. With the starter key at the "RUN" position, the cooling water temperature is indicated.

C Hour-meter Indicates the total operating hours of the machine. How the indicator works A The meter advances one hour after an hour of operation regardless of the engine rpm.

C Engine tachometer Indicates the current rpm of the engine.

A The LCD may be illegible when viewed from a certain angle. This is not a display failure. BLCD for Warning C Engine oil pressure warning lamp The engine oil pressure warning lamp lights up due to failure of the lubricating system with the engine running. When the starter key is turned to "RUN" position with the engine off, this engine oil pressure lamp lights up, warning lamp blinks and when the engine starts, the lamps go out. If the lamp stays on with the engine running, stop the engine and check the engine oil level.

C Battery charge lamp This battery charge lamp lights up if the charging system fails with the engine running. When the starter key is turned to "RUN" position with the engine off, the battery charge lamp lights up, warning lamp blinks and when the engine starts, the lamps go out. If the lamp stays on with the engine running, stop the engine and check the V-belt.

BWarning Lamp The warning lamp is used to indicate broken wire, short-circuit, fuel shortage and other problems.

A Do not just look at the meter, but also carry out the inspection and correction accordingly.

A The warning lamp starts flashing in red if a serious problem occurs. If the system gets in warning signal, the warning lamp starts flashing in yellow. A Warnings and errors are displayed and an alarm buzzer beeps. A Let your KUBOTA dealer inform you of details concerning care and maintenance.

C Overheat warning If the water temperature has risen too high, the water temperature warning lamp lights up and the following error code (E:015) gets displayed.

With the error code displayed, take the procedure below. 1. Bring the machine to a stop on a safe place. (Get the engine unloaded.)

2. Do not yet stop the engine, but allow it to run idle unloaded for 5 minutes or so. Then stop the engine.

3. Keep yourself away enough from the machine for another 10 minutes or while the engine is emitting steam.

4. Make sure there is no risk of getting burned. Then remove the cause of overheat, referring to "TROUBLESHOOTING". Finally get the engine restarted.

BCheckpoints after Starting the Engine After starting the engine, but before starting operation, check the following points: 1. Put the throttle lever in position "LOW" and let the engine idle for approx. five minutes. This allows the engine lubricant to warm up and penetrate every part of the engine. Note: A This idling is usually called "Warm-up". 2. Once the engine has warmed up, check: A the warning lamp "Engine oil pressure" has gone out. A the warning lamp "Battery charge" goes out when engine speed is increased. A the color of the exhaust is normal and no abnormal noises or vibrations are heard or felt. A no fluid is leaking from pipes or hoses.

C Should any following conditions occur, stop the engine immediately. A The engine rpm's increases or decreases suddenly. A Sudden abnormal noises are heard. A Exhaust is black. A Warning lamp for engine oil lights up during operation.

A In these cases, the excavator must be checked and serviced by your local the KUBOTA dealer.

STARTING THE ENGINE UNDER COLD CONDITIONS

To avoid personal injury: A Make sure that the lock lever is in the lock position during warm up. Start the engine in the following manner; 1. Pull the lock levers all the way back (lock position).

2. Turn the starter switch to the position "RUN" (glow position) and keep until the indicator lamp has gone out.

3. Move the starter switch to the position "START"; to crank and start engine.

4. Release the starter switch after the engine has started; it will automatically return to the position "RUN ".

A Let the engine warm up after start-up for approx. 10 minutes under no load conditions. If the hydraulic fluid temperature is too low, the operations will be affected. Do not operate the excavator under full load before the engine has warmed up enough.

STOPPING THE ENGINE

To avoid personal injury or death: A Do not keep the bucket or dozer in the lifted position, as a person, could accidentally touch the levers and cause serious accidents. 1. After slowing the engine to idle, turn the key to "STOP".

2. Remove the key.

3. Pull the lock lever to "Lock" position.

BEngine Stop Lever

To avoid personal injury: A Keep hands away from rotating parts. The engine stops when the key is turned off. If the engine does not stop, open the engine hood and push the stop lever back and hold it until the engine stops.

STARTING WITH AN AUXILIARY BATTERY

To avoid personal injury: A Battery gases can explode. Do not smoke and keep sparks and flames away . A Do not start the engine with an auxiliary battery if excavator battery is frozen. A Do not connect the black jumper cable to the negative (-) terminal of the excavator battery. BObserve Following Guidelines when Starting with an Auxiliary Battery 1. Bring the helping machine with the same battery voltage as near as possible to the excavator. THE MACHINES MUST NOT COME IN CONTACT WITH EACH OTHER.

2. Bring the levers and pedal of both vehicles in the neutral position and put the lock lever in the "Lock" position.

3. Wear eye protection and rubber gloves.

4. Remove the battery caps from both batteries. (If present)

5. Cover the battery opening with a cloth. Make sure that the cloth does not touch the battery terminals.

6. Connect the terminal of the red jumper cable with the plus (+) terminal of the low battery and connect the other end of the cable to the plus (+) terminal of the auxiliary battery.

7. Connect the black cable to the minus (-) terminal of the auxiliary battery.

8. Connect the other end of the black cable (coming from the auxiliary battery) to the excavator frame as far away as possible from the low battery.

9. Start the engine of the helping machine and let it run for a while. Start the excavator with the low battery. 10.Disconnect the jumper cables in the reverse sequence

(Steps 8, 7, 6). 11.Remove the cloth and replace the vent caps.

(1) Remove battery caps (if present)

(2) Low battery

(3) Put a cloth over the battery openings

(4) Jumper cables

(5) Auxiliary battery

A This excavator has a negative (-) earthed 12 Volt starting system. A Only use the same voltage when using an auxiliary battery. A Using a higher voltage will cause serious damage to the electrical system. When using an auxiliary battery, only the compatible (same) voltage is permissible.

EXCAVATOR OPERATION

RUNNING-IN OF THE NEW EXCAVATOR The operation and care of the new excavator influences its life span. Your new excavator has been carefully checked and tested before leaving the factory. In spite of this, all movable components must run-in during the first 50 work hours. Do not work with full rpm's and full loads during this period. It is most important to run-in your excavator properly in order to achieve its full performance and longevity. During the running-in, the following points should be adhered to in all cases. BDo not Work with Full Engine Rpm's or Full Loads during the First 50 Working Hours A Let the engine warm up sufficiently in the cold season. A Do not let the engine rev-up more than necessary. BOil Change in the Run-in Stage The lubrication oil plays a specific and important role during the run-in phase of the excavator. The numerous movable parts are not yet run-in, so many fine metal particles are generated and cause damage and shorten the life of many components. Pay attention to the oil-change intervals and complete them sooner than later. See "REGULAR CHECKS AND MAINTENANCE WORK" section for more details on the oil-change intervals. BSeat Belt

To avoid personal injury or death: A Always use the seat belt with a ROPS/OPG (Top Guard Level I) protection structure. Adjust the seat to the optimal position and buckle up.

A No persons, other than those familiar with the excavator, are allowed to use the excavator. A Do not allow any person other than the

operator to ride on the excavator. BAdjusting the Operator's Seat

A Before adjusting the operator's seat, make sure that no one puts hands on the engine hood behind the seat. A After having adjusted the seat, make sure that the seat adjuster has clicked into position. A Lock the lever for attachment control when

adjusting the seat. For and aft: While holding up the for-and-aft adjustment lever, reposition the seat for and aft.

(1) For-and-aft adjustment lever (A) "Unlock"

(2) Lock lever for attachment control

BLock Lever BWorking Light Switch When the starter switch is in position "RUN", the light(s) can be switched on by pressing the switch.

To avoid personal injury: A To avoid injuries, check safety features all around the excavator.

A With the lever lock pulled down, the engine fails to start. C Night operation

To avoid personal injury: A Visibility is reduced in darkness, therefore the work light alone may not be enough. In which case, prepare additional stationary artificial lighting, observe safety rules as well as special regulations for night work. BTravel Buzzer (Option) When you handle the drive levers, the buzzer sounds at the same time or before the excavator starts to run. TWO PATTERN SELECTION SYSTEM (TPSS)

To avoid personal injury: A Study control lever pattern A and pattern B. Then choose the one which is most familiar A Position the pattern selector lever (located on the right side of operator's seat) in either the lower position (pattern A) or the upper position (pattern B). A Engage the lock lever to prevent accidental pattern change. A Familiarize yourself with the pattern selected by operating slowly. BPattern Change 1. Loosen the lever lock knob (2) and slide it to the direction (a), and position the pattern selector lever (1) to the desired position.

2. Slide the lever lock knob (2) to the direction (b) and tighten it.

Lever Position Pattern A Pattern B Attachment A Boom down Arm up Control Lever B Boom up Arm crowd (Left) C Swing left Swing left D Swing right Swing right Attachment Arm up Boom down Control Lever Arm crowd Boom up (Right) Bucket crowd Bucket crowd

Bucket dump Bucket dump

(1) Pattern selector lever (a) "UNLOCK" (Two Pattern Selection System:TPSS) (b) "LOCK"

(2) Lever lock knob

(3) Pattern A

(4) Pattern B

OPERATION OF THE BOOM To raise the boom, pull the attachment control lever back. The boom is equipped with a cushion cylinder which helps prevent excavated material in the bucket from falling out. Low hydraulic oil temperature, (e.g. after starting the engine in cold weather) the cushioning function will be effected for a short period of time (approx. 3 to 5 seconds). This condition results from the viscosity of the hydraulic oil and is not a sign of malfunction. The cushion cylinder will operate normally as the oil warms up. To lower the boom, push the attachment control lever forward. OPERATION OF THE ARM Pull back the attachment control lever and the arm will be pulled in. To move the arm out, push the control lever towards the front.

A When pulling in the arm, the movement may stop for a short moment when the arm is in its vertical position. This is caused by the combined load of the arm and bucket moving the cylinder piston away from the hydraulic flow causing a delay in the cylinder action, until the flow catches up with cylinder piston. This is a characteristic of the hydraulic system and is no sign of a malfunction.

A When lowering the boom, make sure that it does not hit the dozer and that the bucket teeth do not touch the dozer. OPERATION OF BUCKET To dig using the bucket, move the right attachment control lever from the neutral position, left. Moving the control lever right, moves the bucket outwards and dumps its contents.

SWIVEL(UNIT SWING)OPERATION

To avoid personal injury: A When working in groups, always let the others know what you are going to do before you do it. A Keep away from the working area.

A Do not operate the left attachment control lever abruptly from right to left (or vice versa). Because of the low of inertia, this causes an impact load on the swing gear and the swing motor. Additionally, the life of the excavator will be shortened. 1. Move the control lever to the left and the upper structure will turn to the left.

2. Move the control lever to the right and the upper structure will turn to the right.

BOOM SWING OPERATION 1. Flip the pedal lock up to unlock the pedal.

2. Step on the left side of the pedal ( ) to swing the boom to the left. 3. Step on the right side of the pedal (

)to swing the boom to the right.

OPERATION OF THE DOZER 1. To raise the dozer, pull back the control lever. Pushing the control lever forwards lowers the dozer.

(1) Control lever (A) "Raise"

(2) Dozer (B) "Lower"

2. While undertaking earth moving work, control both drive levers with left hand and the dozer control lever with right hand.

SERVICE PORT OPERATION DRIVING

To avoid personal injury: A Tilt the service port pedal forward when the pedal is not used. Be sure to lock the pedal. This pedal is used to operate attachments such as breakers. To avoid personal injury or death: A Before starting the engine, make sure that no one is near the excavator. A Before operating the excavator, check the track direction. (Idler and dozer blade to the front of the excavator).

(1) Service port pedal (A) Port (A)

(2) Pedal lock (B) Port (B)

1. Adjust the engine speed from idling to an intermediate A Push the right part of the pedal ( ) to send oil to the speed. port (A). 2. Unlock the lock lever for attachment control. A Push the left part of the pedal ( ) to send oil to the 3. Raise the dozer and hold the bucket about 20 to 40 cm port (B). (8 to 16 in.) over the ground. Max. Flow Volume Theoretical L (US gal.) min. 48.0 (12.7) Max. Pressure MPa (kgf/cm )[psi] 21.6 (220) [3132]

A When the service port is not used for a long period, dirt particles can settle in the lower part of the service port lines. When the plugs on the service port lines are removed to connect attachments, drain approx. 100 cc of oil per side. For breaker choices, contact your dealer. BDrive Levers (Right, Left)

To avoid personal injury or death: A If the swing frame has been turned 180 , i.e. the dozer blade is, seen from the operator, "behind", then the travel direction is opposite to the drive direction of the levers (when activating the drive lever forwards, the excavator, seen from the operator, will move backwards). Pushing the drive lever forward, moves the excavator forward, and vice-versa. The front of the excavator is the direction where the dozer is present.

(1) Drive lever (left) (A) "Forward"

(2) Drive lever (right) (B) "Backward"

A If the tracks are clogged with sand or gravel while working on soft ground, lift up one track with the help of the boom, arm and bucket and let the track rotate to shake off the sand and gravel.

To avoid personal injury or death: A When lifting the machine with an attachment, place a safety block or safety post to prevent the machine from turning over. Keep the lock lever for attachment control in the "LOCK" position.

BTravel Speed Switch Travel speed will increase when this switch is pushed down. Switching the dual travel speed:

1. Press the travel speed switch. The buzzer beeps and the travel speed changes from first speed to second. The symbol lights up. 2. Press the travel speed switch again, and the buzzer beeps and the travel speed changes from second speed to first. The symbol light goes out.

A When activating the travel speed switch, it must be pushed down completely. A Each time the travel speed switch is pressed, the travel speed is switched between first and second.

A Do not activate the travel speed switch when there is increased drive resistance (e.g. driving on inclines or on uneven grounds).

C Change of Direction while Travelling TURNS 1. While travelling forwards, bring the left drive lever in the neutral position; the excavator will turn in the direction of the arrow of

To avoid personal injury: the illustration below. A Do not change direction on steep slopes, or the

excavator could tip over. A Before changing direction, beware of people in the work area. BPivot Turn

A Movement as illustrated shows the turning directions with the dozer blade in the front. C Change of Direction while Stationary 1. Push the left drive lever forward; the excavator will turn in the direction of the arrow of the illustration below.

2. Pull the left drive lever backward; the excavator will turn in the direction of the arrow of the illustration below.

2. While travelling backwards, bring the left drive lever in the neutral position; the excavator will turn in the direction of the arrow of the illustration below.

UP AND DOWNHILL TRAVELLING BSpin Turn When both drive levers are activated in the opposite directions, both track will rotate with the same speed but To avoid personal injury: in opposite directions. The center of rotation is the center A When travelling up or down a slope, use extra of the excavator. caution and follow the instructions below.

While travelling uphill, keep the lower edge of the bucket approx. 20 to 40 cm (8 to 16 in.) above the ground. Although the KUBOTA excavator will not slip easily because of the tracks, it is safer to let the bucket slide over the ground while travelling downhill. Always choose slow speed for uphill and downhill travelling. [UPHILL TRAVELLING]

[DOWNHILL TRAVELLING]

PARKING ON A SLOPE

To avoid personal injury or death: A When the excavator is parked or left unattended on a slope, be sure to put the bucket on the ground and place all control levers in neutral position, then brace the tracks with chocks.

IMPORTANT INFORMATION ON EXCAVATOR OPERATION A Do not try to crush concrete or boulders using side swings with the bucket. Also avoid using side sweeps of the bucket to move earth piles. A Under all circumstances avoid the following operations: A Excavation using the gravitational impact of the machine. A Compacting of gravel or soil using the dropping action of the bucket. A Excavation using the traveling power of the machine. A Do not try to drop or shake off soil adhering to the bucket in the manner given in the points below. This can cause damage to the machine. Adhering soil can be shaken off when the bucket is being emptied by moving the bucket out to the maximum stroke of the cylinder. Should this not suffice, swing out the arm as far as possible and operate the bucket back and forth. A Do not hit the dozer with the boom cylinder! Make sure that the boom cylinder does not hit the dozer when doing deep excavation. If necessary swing around so that the dozer is in the back of the machine. A Pay attention when pulling in the bucket! When pulling in the bucket (for driving or transportation) avoid hitting the dozer. A Avoid collisions! When moving the excavator, pay attention that the dozer does not collide with obstructions such as boulders, etc. Such collisions shorten the life of the dozer and the cylinder substantially. A Support the machine correctly! When stabilizing the machine with the dozer, lower the dozer to engage the full width on the ground. A If the water or mud level reaches higher than the top of the tracks, the swivel bearing, swivel motor gear and ring gear may be exposed to mud, water and other foreign objects. The excavator must be properly pressure washed after each use. A Thoroughly clean the area around the swivel bearing, swivel motor gear and ring gear to remove foreign objects. A Inspect the swivel motor oil sump (if equipped) for water contamination. If water is present, refer to operator's manual for lubricant replacement procedure. A Refer to operator's manual for proper swivel bearing, swivel motor gear and ring gear lubrication procedures. A Reinstall any protective covering if removed earlier.

TRANSPORTING THE EXCAVATOR ON A TRUCK

To avoid personal injury or death: A No directional changes should be made when the excavator is on the ramp. Should a change of direction be necessary, drive off the ramp completely and make the turn. A When driving forwards or backwards onto the truck, or when swinging the upper body, make sure that neither the cabin or the gates of the truck will be damaged.

A When the excavator reaches the point between the ramps and the truck bed, halt and then move very slowly until the excavator reaches the horizontal position. A Move the excavator onto the truck only with the arm completely pulled in. Otherwise the truck cabin could be damaged when swinging around the upper body. A Do not jack up the machine using its boom to load or unload the excavator from the truck. Dangerous situation could arise. B Transporting on a Truck

To avoid personal injury or death: A After loading the machine on the truck, lower the bucket and dozer onto the truck bed. Prepare a platform to load or unload the excavator. Take following steps when using ramps. 1. Apply the parking brakes of the truck, and block the drive wheels from both sides.

5. Block the tracks and tie down the excavator with suitable chains and approved method (check appropriate state regulation).

6. Before unloading, raise the dozer and bucket from the truck bed.

LIFTING OF THE EXCAVATOR

To avoid personal injury or death: A The correct instructions for safe handling are described here. Read these instructions carefully before moving the machine. Make sure that the operating personnel read the operator's manual carefully. B Basics when Lifting with Cables or Straps 1. The lifting and crane operation is to be undertaken according to the guidelines described.

2. The equipment used for lifting mentioned in these instructions are only given as reference, the standards concerning strength, control and other details are based on the respective applicable guidelines.

B Safety Aspects when Lifting with Cables or Straps Abide by following steps when lifting: 1. Do not lift loads that exceed the maximum load capacity of the crane.

2. Choose correct equipment suitable to the weight, size and form of the load.

3. First assess the center of gravity of the load, position the hook directly over the load and lift the load so that the center of gravity of the load is as low as possible.

4. The steel cables or straps must be fixed in the middle of the hook.

5. The load must be lifted vertically from the ground.

6. Do not enter the working area under suspended loads and do not move the load over people. The load must only be moved in an area where the balance can be easily maintained.

B Lifting Procedure for the Excavator

A Do not use the hooks on the roof of canopy and cabin for lifting the excavator. C General guidelines for lifting 1. Lifting position. (see illustration) (1) Pull in the boom towards rear.

(2) Pull in the arm completely.

(3) Pull in the bucket completely.

(4) Adjust the swing angle to the center. (to bring the boom in a position parallel to the machine frame)

(5) Swing frame so that dozer blade is to the rear and frame is parallel with tracks.

(6) Raise the dozer blade fully.

2. Attaching the steel cables or straps. (1) Always hook the excavator at three points. (one on the boom and right and left of the dozer)

(2) Always use a shackle on each lifting hole when attaching the cables or straps.

(3) Use protective material at all places where the cables or straps contact the machine.

(4) Keep the angle between the front and rear cables or straps within. 30 (0.52 rad.).

3. Tackle The weights of the excavators and the recommended tackle for lifting these loads are mentioned in the following table. Choose components having enough strength.

Excavator Weight* 2520 kg Load / Cable 8500 N Minimum Cable Diameter (Safety factor=6) 12.5 mm or more

*Excavator Weight: With canopy, steel tracks. Steel cable: 6X24

4. Lifting (1) Lift slowly and safely

(2) Do not enter the excavator area when lifting.

(3) Lift the excavator horizontally. (Modify cable or

strap connections according to needs) Maximum strength for example: (JIS G 35 25) - "6X24"

Diameter zinc-plated not zinc-plated 10 mm (3/8) 45.8 KN 49.3 KN 12.5 mm (1/2) 71.5 KN 77 KN 14 mm (9/16) 89.7 KN 96.6 KN 16 mm (5/8) 117 KN 126 KN 18 mm (45/64) 148 KN 160 KN

MAINTENANCE

MAINTENANCE INTERVALS

No. Check points Intervals Hour meter indicator Consequently Ref. page 50 100 150 200 250 300 350 400 450 1 Coolant check Daily check 39 change every 2 years 52 2 Fuel check Daily check 37 3 Engine oil check Daily check 38 change every 500 hrs 46 4 Hydraulic oil check Daily check 38 change every 1000 hrs 50 *1 5 Lubrication points - Daily check 39 6 Radiator and oil cooler check Daily check 40 7 Engine and electrical wiring check Daily check 40 8 Fuel tank, Water separator drain every 50 hrs 41,41 9 Battery condition check every 50 hrs 42 10 Greasing swing bearing teeth - every 50 hrs 43 11 Fan belt tension check Daily check 40 adjust every 200 hrs 44 12 Radiator hoses and clamps check every 200 hrs 44 replace every 2 years 52 13 Air filter element Outer element clean every 200 hrs 45 *2 @ replace every 1000 hrs 51 *2 Inner element replace every 1000 hrs 51 *2 14 Greasing swing ball bearings - every 200 hrs 45 15 Fuel filter cartridge replace every 500 hrs 48 @ 16 Engine oil filter replace every 500 hrs 47 17 Drive unit oil change every 500 hrs 48 18 Hydraulic return filter element replace every 500 hrs 49 19 Hydraulic suction filter element replace every 1000 hrs 50 20 Filter in the pilot hydraulic system replace every 1000 hrs 49 21 Fuel injection nozzle injection pressure check every 1500 hrs 51 *4 @ 22 Front idler and track roller oil change every 2000 hrs 51 23 Alternator and starter motor check every 2000 hrs 51 24 Injection pump check every 3000 hrs 51 *4 @ 25 Radiator system rinse every 2 years 52 26 Fuel line and Intake air line check every 200 hrs 46 @ replace every 2 years 53 *3 27 Greasing pilot valve linkage - every 250 hrs 46 28 Pilot circuit filter clean every 1000 hrs 49

D 500 thru 1000 continued to the following table.

No. Check points Intervals Hour meter indicator Consequently Ref. page 500 550 600 650 700 750 800 1000 1 Coolant check Daily check 39 change every 2 years 52 2 Fuel check Daily check 37 3 Engine oil check Daily check 38 change every 500 hrs 46 4 Hydraulic oil check Daily check 38 change every 1000 hrs 50 *1 5 Lubrication points - Daily check 39 6 Radiator and oil cooler check Daily check 40 7 Engine and electrical wiring check Daily check 40 8 Fuel tank, Water separator drain every 50 hrs 41,41 9 Battery condition check every 50 hrs 42 10 Greasing swing bearing teeth - every 50 hrs 43 11 Fan belt tension check Daily check 40 adjust every 200 hrs 44 12 Radiator hoses and clamps check every 200 hrs 44 replace every 2 years 52 13 Air filter element Outer element clean every 200 hrs 45 *2 @ replace every 1000 hrs 51 *2 Inner element replace every 1000 hrs 51 *2 14 Greasing swing ball bearings - every 200 hrs 45 15 Fuel filter cartridge replace every 500 hrs 48 @ 16 Engine oil filter replace every 500 hrs 47 17 Drive unit oil change every 500 hrs 48 18 Hydraulic return filter element replace every 500 hrs 49 19 Hydraulic suction filter element replace every 1000 hrs 50 20 Filter in the pilot hydraulic system replace every 1000 hrs 49 21 Fuel injection nozzle injection pressure check every 1500 hrs 51 *4 @ 22 Front idler and track roller oil change every 2000 hrs 51 23 Alternator and starter motor check every 2000 hrs 51 24 Injection pump check every 3000 hrs 51 *4 @ 25 Radiator system rinse every 2 years 52 26 Fuel line and Intake air line check every 200 hrs 46 @ replace every 2 years 53 *3 27 Greasing pilot valve linkage - every 250 hrs 46 28 Pilot circuit filter clean every 1000 hrs 49

First operation *1 When using a hydraulic breaker, change hydraulic oil and return filter according to the table on "Hydraulic Oil Change (Including Exchange of the Suction Filter in the Hydraulic Tank)" under "EVERY 1000 SERVICE HOURS" in the chapter "REGULAR CHECKS AND MAINTENANCE WORK". *2 Clean and replace the air filter more frequently if used under dusty conditions. When the filter is very dirty from dusty conditions, replace the filter. *3 Replace only if necessary. *4 Consult your local KUBOTA Dealer for this service. A The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA non-road emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the above instruction. Please see the Warranty Statement in detail. DAILY CHECKS For your own safety and to assure the long life of your machine, a careful check should be made before each operation. BCheck Fuel Level

To avoid personal injury: A Stop the engine and remove the key before fuelling. A Do not smoke while fuelling.

A When temperatures are over -7 (20 ), use No.2-D diesel fuel, when temperatures are under -7 (20 ), use No.1-D diesel fuel or a blend of No.2 and No.1 diesel. A Make sure that the fuel tank is not run empty. Air will enter the fuel system, and must be purged before restarting. A See "PURGING OF THE FUEL SYSTEM" in "OTHER ADJUSTMENTS AND REPLACEMENTS" A To prevent condensation (water) accumulations in the fuel tank, fill the fuel into the tank before parking overnight. If the fuel in the tank goes below the prescribed level, the warning lamp will flash. If this should happen during operation, refuel as soon as possible.

(1) Fuel gauge (A) "FULL"

(2) Remaining fuel warning lamp (B) "EMPTY"

Open the tank cap with the starter key, and add fuel. A See "Opening and Closing of the Fuel Tank Cover" and "LCD for Normal Operation."

BCheck Engine Oil Level To avoid personal injury: A Stop the engine and remove the key before checking the oil level.

A Use engine oil with the correct viscosity. (according to the outside temperature) A After stopping the engine and remove the key, wait 5 minutes, then check oil level. (Excavator must be on level ground.) Insert the engine oil dipstick fully into the prepared opening, remove again and check the oil level; if necessary fill with oil. The machine must be on level ground when checking the oil level. BCheck Hydraulic Oil Level

To avoid personal injury: A Stop the engine and remove the key before checking the oil level.

A Before filling oil, wipe away all sand and dust from around the oil port. Make sure to use an identical type of hydraulic fluid. A The excavator has been filled with hydraulic fluid before delivery. See "RECOMMENDED OILS". (Do not mix different oils) 1. Park the excavator on a firm, flat and level surface. Lower the attachments and dozer blade to the ground and stop the engine.

BChecking Coolant Level BLubrication Points

To avoid personal injury: A Move the excavator to even ground. A Make sure that the engine is turned off. A Do not open the radiator cap right after the engine has been stopped; Serious burns can occur from contact with escaping hot coolant fluid. A Check the coolant level in the recovery tank only after the engine has cooled down. A Remove the radiator cap only if absolutely necessary. The radiator has a recovery tank. Should the coolant level in the radiator sink, the water will be automatically be transferred to the radiator. Check the coolant level in the recovery tank and fill up if necessary. The coolant level should be between the marks "FULL" and "LOW".

A Do not fill the recovery tank over the "FULL" marking. A Do not fill with dirty or salty water. BWashing Whole Machine

A Do not wash the excavator with the engine running. Water could enter the air filter and damage the engine. Make sure that the air filter is kept dry. A Remove the mud before washing the machine. To avoid personal injury: A First lower all attachments on the ground then stop the engine and remove the key. A While greasing, take care not to step on the bucket teeth. A When doing excavation work in water, generously grease the following points. After ending work, grease again. Grease the marked grease fittings shown by arrows in the illustration below. 1. Boom bottom linkage............................. 1 place

2. Arm bottom linkage................................ 1 place

3. Bucket link pin........................................ 3 places

4. Boom cylinder pin.................................. 1 place

5. Boom cylinder boss............................... 1 place

6. Arm cylinder boss................................... 1 place

7. Arm cylinder pin..................................... 1 place

8. Bucket cylinder pin................................ 1 place

9. Fixing pin between arm and bucket........ 1 place

10. Boom swing fulcrum............................... 2 places

11. Swing cylinder boss............................... 2 places

12. Dozer cylinder boss................................ 2 places

13. Dozer linkage pin................................... 2 places

BCheck Fan Belt

To avoid personal injury: A Stop the engine and remove the key before checking the fan belt. A Check the fan belt for cracks and proper tension. (See "Checking Fan Belt Tension" in "REGULAR CHECKS AND MAINTENANCE WORK" section.) BCleaning of Engine and Electrical Wiring

To avoid personal injury: A Always stop the engine and remove the key before cleaning the wiring, cables and engine. Before starting, check whether flammable substances have gathered on the battery, the cables and wiring, the muffler or on the engine. If so, remove thoroughly. BCheck Radiator and Oil cooler

To avoid personal injury: A Always stop the engine and remove the key before checking the radiator. A Wear eye protection when cleaning with compressed air. 1. Check if the fins and ribs are clogged. If so, clean with compressed air or steam.

2. Check the rubber hoses for damage and replace if cracked or old. Check if the hose clamps are tight enough.

A Radiator fins and ribs must be clean in order not to overheat the engine and allow free flow of air through the cooling elements.

REGULAR CHECKS AND MAINTENANCE WORK

EVERY 50 SERVICE HOURS BDraining the Water from the Fuel Tank

To avoid personal injury: A Before draining the water from the fuel tank, be sure to stop the engine and remove the key. A Do not smoke during inspection. 1. Remove the drain plug on the underside of the body and drain water.

2. Re-tighten the drain plug.

BDraining Water Separator 1. Open the hood.

2. When the separated water is being drained, the red float moves upwards. When the float reaches the line, close the shutoff-valve so that no fuel can run out. Now loosen the ring nut, and remove the cup and empty completely.

3. Finally, do not forget to open the shutoff-valve and close the hood.

(1) Ring nut (4) Float (2) Cup (5) Line (3) Shutoff-valve

BBattery

To avoid the possibility of a battery explosion: For refillable type battery, follow the instructions below. A Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark. Otherwise, the battery component parts may prematurely deteriorate, which may shorten the battery's service life or cause an explosion. Check the fluid level regularly and add distilled water as required so that the fluid level is between the UPPER and LOWER levels.

To avoid personal injury: A Batteries contain sulphuric acid which can cause severe burns. Avoid all contact with skin, eyes or clothing. Antidote -External: Rinse with plenty of water. Internal: Drink large quantities of water or milk. Follow with milk of magnesia, beaten egg or vegetable oil. Call a physician immediately. Eyes: Rinse with plenty of water for 15 minutes and get prompt medical attention. Keep batteries out of the reach of children. A Before inspection or dismounting the battery, be sure to turn the starter switch to the "OFF" position and turn off the engine. A When removing the battery, always disconnect the negative ground cable first. The reverse when installing a battery, always connect the ground cable last. This prevents a possible explosion caused by sparks. A Always wear eye protection when working with the battery. 1. Check the battery fluid level and add distilled water if necessary.

2. Clean the battery caps (ventilation holes).

BBattery Charging

To avoid personal injury: A When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery. A When charging battery, remove battery vent plugs. A When disconnecting the cable from the battery, start with the negative terminal first. When connecting the cable to the battery, start with the positive terminal first. A Do not check battery charge by placing a metal object across the terminals. Use a voltmeter or hydrometer. 1. Make sure each electrolyte level is to the bottom of vent wells. If necessary add distilled water in a well-ventilated area.

2. The water in the electrolyte evaporates during recharging. Liquid shortage damages the battery. Excessive liquid spill damages the excavator body.

3. To slowly charge the battery, connect the battery positive terminal to the charger’s positive terminal and the negative to the negative one. Then, recharge in the standard fashion.

4. A boost charge is only for emergencies. It will partially charge the battery at a high rate and in a short time. When using a boost-charged battery, it is necessary to recharge the battery as early as possible. Failure to do this will shorten the battery's service life.

5. When the specific gravity of electrolyte falls between

1.27 and 1.29, charge has completed.

6. When exchanging old battery for a new one, use battery of equal specification.

BGreasing of Swing Bearing Teeth 1. Pump grease with grease gun through the grease fitting.

2. Grease at each 90 (1.58 rad.) position of the swing frame. 3. Fill with approx. 50g of grease (approx. 20 pumps with the grease gun). Distribute the grease over the teeth.

EVERY 200 SERVICE HOURS Do all 50 hour servicing at the same time. BChecking Fan Belt Tension C Check and adjustment of the fan belt tension

To avoid personal injury: A First stop the engine and remove the key. A After servicing, make sure to replace the belt cover in its original position. 1. Press the fan belt down in the middle, with a force of approx. 7 kg (15 lbs). The belt tension is correct if it deflects about 7 mm (0.28 in.). If otherwise, loosen bolt (1) and (2) and shift the alternator (3) in the direction shown by the arrow. 2. Replace the fan belt if worn out, cracked or torn.

(1) Bolt (A) about 7 mm (0.28 in.)

(2) Bolt (B) approx. 7 kg (15 lbs.)

(3) Alternator

A If the engine is run with a loose fan belt, the belt could slip and cause overheating of the engine or insufficient battery charging. Check fan belt tension regularly. A Should the fan belt break or jump off, the indicator light for battery charge will light up. Stop the engine and remove the key immediately. BChecking Radiator Hoses and Clamps

To avoid personal injury: A Wait long enough for the radiator coolant to cool down. Check the water hoses for proper connection. This check should be carried out every 200 hours or every 6 months, whichever comes first. 1. Should the hose clamps become loose or water leaks, tighten the hose clamps properly.

2. Should the radiator hoses become swollen, aged or cracked, they must be replaced and the hose clamps tightened again properly.

BInspection and Cleaning Air Filter Element Open the engine hood and remove the dust-cover. Take out only outer element, clean the element, case interior and reassemble. During reassembly, take care to install the dust-cover so that its TOP mark (arrow) faces up­wards. Do not remove the inner element.

A Should the machine be used in extremely dusty areas, the air filter element must be inspected and cleaned more frequently than in the specified maintenance periods. A The air filter has a dry element, keep free from oil. A Do not run the engine without the air filter.

BAir Filter Maintenance

To avoid personal injury: A Wear eye protection.

C Cleaning with compressed air Pressure of compressed air must be under 205 kPa (2.1 kg/

, 30 psi), and the cartridge should be blown clean from the inside to the outside until the dust deposits are remarkably reduced.

A If the air suction is still inadequate, or the colour of the exhaust gases is abnormal even after the cleaning, the air filter element must be replaced. BGreasing Swing Bearing 1. Grease through the respective grease fitting. (at the central fitting)

2. Grease at each 90 (1.58 rad.) position of the swing frame. Using the grease gun, apply 5 shots at every position.

BChecking Fuel Line and Intake Air Line 1. Check to see that all lines and hose clamps are tightened and not damaged.

2. If hoses and clamps are found worn or damaged, replace or repair them at once.

EVERY 250 SERVICE HOURS Do all 50 hour servicing at the same time. BLubrication of the Pilot Valve Remove the rubber bellows from the underside of the control levers. Grease the tip of the push rod and the rotating part of the link.

EVERY 500 SERVICE HOURS Do all 50 and 250 hour servicing at the same time. BChanging Engine Oil (Change the engine oil every 500 hours, or every 1 year in the case that service hour is less than 500 hours)

To avoid personal injury: A First stop the engine then remove the key and wait long enough for the oil to cool down. 1. Remove the drain plug on the underside of the engine and drain all oil.

2. Re-tighten the drain plug.

3. Fill with new oil up to the required level.

4. Let the engine idle for approx. 5 min. Check the engine oil level. To check the engine oil level, insert the engine oil dipstick completely into the respective port opening and pull out again. If the oil level lies between both markings, no oil must be added. A Regardless of the service hours, an engine oil change is due every 1 year.

BReplacing Engine Oil Filter Cartridge (Replace the engine oil filter every 500 hours, or every 1 year in the case that service hour is less than 500 hours) 1. Replace the oil filter cartridge at the same time as doing engine oil change.

2. Remove the cartridge with the supplied filter wrench.

3. Oil the O-ring of the new oil filter cartridge lightly. Then tighten the oil filter cartridge by hand.

4. Fill engine oil to the specified level.

5. Let the engine run for approx. 5 min. and make sure that the engine oil indicator lamp does not light up. Then stop the engine and remove the key.

6. The engine oil level will sink parallel to the oil filter capacity after the engine is started. It is necessary to add oil.

A Always check the oil level when replacing the filter.

BDrive Unit Oil Change (First Oil Change of the 100 hours)

To avoid personal injury: A Lower to the ground, stop the engine and remove the key before undertaking the oil change. 1. Rotate the track so that the drain plug of the drive unit is in the bottom position.

2. Remove the drain plug to let the oil run out. Screw in and tighten the drain plug again and fill with gear oil through the oil check port.

3. Fill oil until it overflows out of the oil check port.

Oil change - first oil change after 100 hrs -then every 500 hrs - or at least once a year 4. Use prescribed gear oil SAE 90.

(1) Oil check port (also serves as oil filling port)

(2) Drain plug

BReplacing Fuel Filter Cartridge

To avoid personal injury: A Keep fire away.

1. Remove the filter with the supplied filter wrench.

2. Add fuel to a new filter before installing.

3. Apply a light film of fuel to the seal of the new filter and turn in tightly by hand.

4. Open the shutoff-valve of the fuel filter again.

A After exchange of the filter, the fuel system must be purged of air.

BReplacing Hydraulic Return Filter Element (First replacement after 250 service hours)

To avoid personal injury: A Remove the oil filter only after the oil in the hydraulic tank has cooled down.

1. Remove the cover of the hydraulic tank.

2. Pull out the filter support by the top from the hydraulic tank.

3. First loosen the lock nut, then remove the return filter from the filter support and replace with a new filter. Do not forget to tighten the lock nut.

A Always check the oil level when replacing the filter. EVERY 1000 SERVICE HOURS Do all 50, 200, 250 and 500 hour servicing at the same time. BCleaning of the Pipe filter of the Hydraulic Pilot System (for Hydraulic Pilot Types) Dust and dirt collect on the concave side of the filter. Clean the filter by letting hydraulic oil flow through from the convex side.

BReplacing the Hydraulic Pilot Filter Element

To avoid personal injury: A Before replacing the element, wait long enough for the hydraulic fluid to cool down. 1. Remove the arch cover.

2. Remove the hydraulic oil tank cover.

3. Remove the pilot filter case from the head cover.

4. Wrench and pull out the element downward.

5. Replace the O-ring with a new one.

6. Apply a light coating of clean hydraulic oil to the O-ring and fit it to the case firmly. Be careful not to scratch the O-ring.

7. Fit the case to the head cover.

8. Let the engine run for approx. 3 minutes.

9. Check the oil level of hydraulic oil tank.

BHydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank)

To avoid personal injury: A Wait long enough for the hydraulic fluid to cool down. Then begin with the change of the hydraulic fluid. 1. Move the excavator to a level ground and stop the engine. Extend the piston rods of the cylinders halfway out and lower the bucket on the ground.

(1) Cover

(2) Suction filter

(3) Drain plug

2. Remove the drain plug on the underside of the hydraulic tank and drain the oil.

3. Remove the cover of the hydraulic tank.

4. With a fork wrench or similar, remove and exchange the suction filter.

5. Retighten the drain plug.

6. Fill oil through the oil filling opening on the top side of the tank.

7. Let the engine run for approx. 5 min. and check the oil level again.

Hydraulic oil volumes Hydraulic tank 22.5 L (5.94 US gal.) Whole oil volumes 37 L (9.78 US gal.)

BHydraulic Oil Check with Hydraulic Breakers The hydraulic oil change after 1000 operating hours in the operator's manual is based on normal excavator work. Following inspection measures are valid when hydraulic breakers are used: 1. Changing and filling up of hydraulic oil (1) The hydraulic oil must be changed more often when breakers are used because the machine is subject to harder conditions than at normal excavating work.

(2) Use only the recommended oils mentioned in the operator's manual when changing or fill oil.

(3) When filling up oil, do not mix oils of different makes.

2. Changing the return filter and oil (1) The filter must be changed more often because of contamination resulting from the frequent assembly and disassembly of the hoses.

(2) Use the correct replacement filter.

(3) Oil change according to operating hours.

Hydraulic oil Return filter Normal excavator work every 1000 Hrs. every 500 Hrs. (250 Hrs. after first operation) Breaker work portion 20% every 800 Hrs. every 200 Hrs. 40% every 400 Hrs. 60% every 300 Hrs. every 100 Hrs. more every 200 Hrs.

EVERY 1000 SERVICE HOURS OR ONCE A YEAR BReplacing Air Filter Element Open the engine hood and remove the dust-cover. Remove and replace the outer element and inner element with new elements. When reassembling, install the dust-cover so that its TOP mark (arrow) faces up-wards.

A Shorten the replacement period if the machine is used in dusty or sandy areas. EVERY 1500 SERVICE HOURS BChecking Fuel Injection Nozzle (Injection Pressure) Consult your local KUBOTA dealer for this service. EVERY 2000 SERVICE HOURS Do all 50, 200, 250, 500 and 1000 hour servicing at the same time. BChanging Front Idler and Track Roller Oil

A Contact your KUBOTA dealer for details. BChecking the Alternator and Starter Motor

A Contact your KUBOTA dealer for details. EVERY 3000 SERVICE HOURS BChecking Injection Pump Consult your local KUBOTA Dealer for this service.

ANNUAL SERVICING BElectrical Wiring and Fuses Check the terminals periodically for proper connections. Loose wiring or damaged cables can cause improper functioning or short circuiting of the electrical system. Check wiring and replace damaged components immediately. If a fuse blows out soon after having been replaced, contact your nearest KUBOTA dealer. Never use a fuse other than specified. BChecking the Electrical Circuit Check the electrical circuitry for disconnections, shorts or loose terminals. BIENNIAL SERVICING

To avoid personal injury: A Do not loosen the radiator cap before the radiator has cooled down sufficiently. Then only loosen the cap and allow enough time for the pressure in the system to be released. Now remove the cap completely. BReplacement of Radiator Hoses and Hose Clamps Replace radiator hoses and hose clamps every two years. If the hoses are swollen, hard or cracked, they must be replaced earlier.

BChanging Radiator Coolant (In case of long-life coolant fluid) Stop the engine then remove the key and wait until it has cooled down completely.

1. Open the drain plug or shutoff-valve on the bottom of the radiator and drain coolant completely.

2. To clean, rinse the radiator with water.

3. Close the drain plug or shutoff-valve and fill the radiator and the recovery tank with coolant fluid. Let the engine idle for about 5 min., stop the engine and check the coolant level then remove the key.

4. The machine has been shipped filled with 50% anti­freeze solution.

A Do not operate the engine without coolant. A To fill the radiator system use fresh water and anti­freeze fluid. A When the anti-freeze is mixed with water, the anti­freeze mixing ratio must be less than 50%. A Tighten the radiator cap properly. If the cap is loosely or not properly fitted, overheating of the engine can result due to coolant fluid loss. BReplacing Fuel Hoses and Hose Clamps Replace the hoses and clamps. (See "Checking Fuel Line and Intake Air Line" in "EVERY 200 SERVICE HOURS")

BReplacing Intake Air line Replace the hoses and clamps, if necessary. (See "Checking Fuel Line and Intake Air Line" in "EVERY 200 SERVICE HOURS")

(1) Hoses

(2) Hose clamps

OTHER ADJUSTMENTS AND REPLACEMENTS

PURGING OF THE FUEL SYSTEM 1. Fill up the excavator with fuel.

2. Turn the starter key to the position "RUN" ( ). 3. The air in the fuel system will automatically be purged within one minute.

too quickly. Otherwise grease under high pressure in the tension cylinder could squirt out. A Do not crawl under the excavator. 1. Using a socket wrench, loosen the grease fitting a few turns.

2. When grease oozes out from the thread, rotate the track and loosen the track in the lifted position (see illustration).

After adjustment is completed: Using the socket wrench, tighten the grease fitting. Tightening torque must be between 98 to 108 N-m (72.3 to 79.7 ft-lbs).

A If the tracks are too tight, wear is increased. A If the tracks are too loose, the track pads may collide with the sprocket and wear is increased. The track may dislocate or come off. A Clean the track after every use. A Should the track tension be high due to sticking mud, lift the track with the help of the boom, arm and bucket, idle the engine and remove mud from the track by rotating it. C Tension the tracks as specified: 1. Apply grease (2) to the grease fitting (1).

2. Rubber Tracks Tension the track in the lifted position, so that the distance "A" (clearance between the track roller and the inside surface of the track) see illustration, in this case, the track seam is positioned on the top center between the idler and the sprocket.

Steel Tracks To check the track tension, the track must be lifted from the ground as shown. The track tension is correct if the clearance between the outer end of the track roller and the track interior surface corresponds to the dimension specified in the table below.

To avoid serious injury or death: A Do not work under the machine in this condition. A For your safety do not rely on hydraulically supported devices, they may leak down and suddenly drop or be accidentally lowered.

To avoid personal injury or death: A When lifting the machine itself with an attachment, place a safety block or safety post to prevent the machine from turning over. Keep the lock lever for attachment control in the "LOCK" position.

(1) Seam (Mark " ") (A) 10 to 15 mm (0.4 to 0.6 in.)

A Make sure that no obstacles, such as stones are caught in the track. Remove such obstacles before adjusting the track tension. A Track seam The ends of the rubber track are joined with a seam. When adjusting the tracks, the seam must be positioned on the top center between the idler and the sprocket. If the seam is positioned incorrectly, the tracks will be tensioned too loosely, and a further readjustment will be necessary. A Rotate the track after adjustment one to two times to check the tension. A Additionally following points are to be observed when adjusting rubber tracks. (1) If the track loosen more than 25 mm (1 in.), readjust them.

(2) Check track tension 50 hours after initial use and readjust if necessary. Check and adjust thereafter every 50 service hours.

BSpecial Information when Using Rubber Tracks 1. When turning, make a slow swing turn. Avoid spin turns to reduce lug wear and entry of dirt.

2. The relief valve may be activated if too much dirt and sand clog the tracks. In this case move the machine for a short distance straight backwards to let the earth and sand fall off, then a turn can be made.

3. Avoid using rubber track on riverbeds, stony underground, ferro-concrete and on iron plates. The rubber can damage as well as increase wear on the tracks.

CHANGING THE BUCKET

To avoid personal injury: A When the coupling pins are removed or installed, chips may come off. Always use gloves, goggles and a helmet. A When the change of the equipment must be performed with the engine running, always work as a 2-person team. One person sits in the operator's seat and the other works on the machine. A Do not use your fingers to center the holes, since they may be injured or even cut in case of sudden or uncontrolled movements. A Read the manual of the attachment to do a correct operation safely when other attachments are installed instead of Kubota specified bucket. FUSES BReplacing Fuses 1. Remove the cover of the fuse box.

2. Replace the burnt out fuse with a fuse having the same capacity.

BFuse Capacities and Circuits BSlow Blow Fuse

5A Meter (+B) 20A Work lamp 5A Starter 5A Room lamp 5A ECU (+B) 30A Engine stop 10A Horn 5A Fuel pump 10A ECU (AC) 5A Relay 15A Auxiliary 1 10A Alternator 15A Auxiliary 2 5A Lever lock 15A Electrical outlet 5A Horn SW

Slow blow fuse is provided to protect the electrical circuits. If the slow blow fuse is blown, check the electrical circuits for trouble and then replace with a new compatible slow blow fuse.

TROUBLESHOOTING

If the excavator dose not show the desired performance, or when trouble arises, refer to the table below and undertake appropriate measures. Trouble Cause Countermeasure Engine Starting difficulties Fuel is too viscous *Check fuel tank and filter *Remove impurities and water *If necessary, replace filter Air or water in the fuel system *Remove water from the fuel tank *Check fuel pipe joint bolts and nuts for looseness *Purging of the fuel system (for fuel filter and injection pump, see "PURGING OF THE FUEL SYSTEM" in "OTHER ADJUSTMENTS AND REPLACEMENTS".) Oil viscosity is too high the engine runs sluggishly in winter *Pour hot water over the radiator Battery is almost dead; insufficient compression *Recharge battery Insufficient engine power Low fuel level *Check fuel and add if necessary Clogged air cleaner *Clean the air filter element Engine suddenly stops Low fuel level *Check fuel and add if necessary *Purge the fuel system Abnormal exhaust gas color Poor fuel *Use high quality fuel Too much engine oil *Drain engine oil to prescribed oil level Water temperature too high (Overheating) Worn or torn fan belt *Adjust or replace Coolant level too low *Fill to prescribed level Radiator grill or fins are clogged *Clean Coolant is contaminated with rust from the cylinder head or crank case *Replace coolant fluid and add anti-rust Defective radiator cap (Evaporation) *Replace Corroded coolant pipes *Clean Continuous operation under full load *Reduce load Engine oil level too low *Fill to prescribed level Use of poor fuel *Use prescribed fuel Hydraulic System Boom, arm, bucket, drive, swing and dozer power is too low Hydraulic oil level too low *Add oil Leakages of hoses and / or joints *Replace hose or joint Swing motor and front attachment does not work Lock lever in "LOCK" position *Bring lock lever into "UNLOCK" position Drive System Deviation of drive direction Blocked through stones *Remove Track too loose or too tight *Adjust accordingly Drive lever does not move Lock lever in "LOCK" position *Bring lock lever into "UNLOCK" position

KUBOTA I.C.S. NAVIGATION LIST OF ERROR CODE If an error occurs with the machine, one of the following error codes appears in the LCD. In case of a trouble, immediately contact your local dealer for inspection and repair. LCD LED Problem / Error Solution #1 Solution #2 1 CAN system error The Controller Area Network (CAN) has developed a fault. Measured values may be incorrect and switches may not function. The machine can be started and driven. Do not perform any work with the machine. Inform your KUBOTA dealer immediately. 2 Feed fuel This message appears when the fuel level is low and prompts the operator to refuel. --­ Refuel the excavator. 3 Periodic check soon (notice) This message appears 10 hours before the periodic check interval. This message means that the regular service is due shortly. Operate the machine as usual. Ask your KUBOTA dealer about the relevant parts. Run the maintenance procedure. 4 Periodic check passed (warning) This message means that the regular service is due. The machine can be operated but service must be carried out urgently. Ask your KUBOTA dealer about the relevant parts. Run the maintenance procedure. 5 Warning temperature rising The temperature of the coolant is higher than normal. Operate the machine only with reduced loads until the temperature is normal again. --­ 6 --­ --­ --­ --­ --­ 7 --­ --­ --­ --­ --­ 8 --­ --­ --­ --­ --­

LCD LED Problem / Error Solution #1 Solution #2 9 Clock setting request Power was interrupted and the clock now has to be set again. In order to set the clock, press the user setting switch. --­ 10 --­ --­ --­ --­ --­ 11 Raise the control lever lock (yellow) This message indicates a step in a procedure. Raise the lock lever (unload lever); the indicator goes out. --­ 12 --­ --­ --­ --­ --­ 13 Lower the control lever lock (yellow) This message indicates a step in a procedure. Lower the lock lever (unload lever); the indicator goes out. --­ 14 Oil pressure too low (red) + The engine oil pressure is too low. Stop the engine immediately. The engine may have developed a fault. Inform your KUBOTA dealer immediately. 15 Overheat The machine is overheated and must cool off by idling. Allow the machine to cool off by idling. Do not switch the engine off as the coolant could then boil over. Clean the radiator and check the coolant. Refill the radiator with coolant by its boiled-over amount. Unclog the radiator and other components before use again. Check also the hydraulic system for oil leak and other troubles. If an oil leak is found, immediately contact your local dealer for repair.

LCD LED Problem / Error Solution #1 Solution #2 16 Charging system error (red) + The charging system has developed a fault. Check the V-belt. When the V-belt is OK, let the engine run until the indicator goes out. If the indicator does not go out, inform your KUBOTA dealer immediately. 17 Fuel sensor error (red) The fuel sensor has developed a fault; the fuel gauge does not appear in the display. Press the display selector switch to return to the default display. Inform your KUBOTA dealer immediately. 18 Water temperature sensor error (red) The coolant temperature sensor has developed a fault; the coolant temperature gauge does not appear in the display. Press the display selector switch to return to the default display. The functions of the machine are stable but overheating cannot be excluded. Inform your KUBOTA dealer immediately. 19 --­ --­ --­ --­ --­ 20 Lever lock system error (red) The electrical system in the lock lever (unload lever) has developed a fault. The engine can be started but the machine cannot be set in motion. Inform your KUBOTA dealer immediately. 21 Travel 2 speed system error (red) The electrical system in the travel speed has developed a fault. The machine can only be set in motion at low speed. Inform your KUBOTA dealer immediately. 22 --­ --­ --­ --­ --­ 23 --­ --­ --­ --­ --­ 24 --­ --­ --­ --­ --­

LCD LED Problem / Error Solution #1 Solution #2 This is a warning that a 25 Overvoltage (red) higher voltage (from a 24-V battery, for example) is being applied to the electric circuit, or that there is a problem with the Switch the engine off immediately and check the battery and the alternator. Restart the engine. If the indicator lights up again after restarting, inform your KUBOTA dealer immediately. alternator. 26 --­ --­ --­ --­ --­ 27 External 5-V system error (red) The 5-V sensor supply line has developed a system fault. The main functions are not available. The machine can be started and driven. Do not perform any work with the machine. Inform your KUBOTA dealer immediately. 28 External 12-V system error (red) The 12-V sensor supply line has developed a system fault. The main functions are not available. The machine can be started and driven. Do not perform any work with the machine. Inform your KUBOTA dealer immediately. 29 Starting the engine (yellow) This error code indicates a step in a procedure. Start the engine; the indicator goes out. --­

C Service hour meter

When the hour meter has counted up to the hours circled in the maintenance list below, the message appears. The message shows up as follows. No. Check points Measures Hour meter indicator Interval 50 100 250 500 600 750 1000 1 Engine oil change every 500 hrs 2 Hydraulic oil every 1000 hrs 3 Air filter element Outer element replace every 1000 hrs Inner element every 1000 hrs 4 Drive unit oil change every 500 hrs 5 Engine oil filter replace every 500 hrs 6 Hydraulic return filter cartridge every 500 hrs 7 Hydraulic suction filter element every 1000 hrs

First operation The message appears. The message shows up as follows.

(The message reappears on the hour meter designated next.)

A The maintenance message disappears automatically in about 10 seconds. A When the key is turned from OFF to RUN, the maintenance message reappears and disappears again automatically in about 10 seconds. A When the key is turned from OFF to RUN repeatedly 10 times, the message disappears. C In case the service hour meter replaced due to any trouble with it, the meter is set to "0". Contact your KUBOTA dealer for details. OPERATION UNDER COLD WEATHER CONDITIONS

PREPARATION FOR OPERATION IN COLD PROCEDURE AFTER DONE WORK

WEATHER 1. Replace engine oil and hydraulic oil with those of viscosities suitable for cold weather.

2. In cold weather, battery power drops, and the battery fluid may freeze if the battery is not sufficiently charged. To prevent the battery fluid from freezing, be sure to keep the battery charged at least 75% or more of its capacity after operation. To ease next starting, it is recommended to keep the battery stored in closed or heated rooms. If the battery fluid level is too low, do not add after operation, but add with the engine running before the next operation.

3. Add anti-freeze to coolant in the radiator and recovery tank, if the ambient temperature is expected to drop below 0 (32 ). Mixing ratio of water and anti-freeze depends on the expected ambient temperature.

A Mixing ratio between water and anti-freeze

Ambient Temperature ( ) -5 (+23) -10 (+14) -15 (+5) -20 (-4) -25 (-13) -30 (-22) -35 (-31) Antifreeze % 30 30 30 35 40 45 50 Water % 70 70 70 65 60 55 50

A Use permanent anti-freeze or long-life coolant. A Drain the coolant completely and clean the inside of the radiator, then fill with the water and anti-freeze mixture. A The anti-freeze acts as an anti-corrosive, it is not necessary to add an additive to the water and anti­freeze mixture. A See "Coolant check" under "DAILY CHECKS" in "MAINTENANCE" for radiator fill volumes. Clean the excavator thoroughly after work and wipe dry. Otherwise mud and earth on the tracks could freeze if the temperature drops below the 0 (32 ) mark. Operation of the excavator is then not possible. Store the excavator in a dry place; if not possible, store on wooden planks or on mats. If the excavator is kept on damp or muddy ground, the tracks could freeze overnight. Operation of the excavator is then not possible. Furthermore the reduction gear may be damaged. Additionally, the piston rods of the hydraulic cylinders must be rubbed dry. Otherwise severe damage could occur if dirty water seeps through the seals. LONG STORAGE

A Do not clean the excavator with the engine running. A To avoid the danger of exhaust fume poisoning, do not operate the engine in a closed building without proper ventilation. A When storing, remove the key from the starter switch to avoid unauthorized persons from operating the excavator and getting injured. A Bring the excavator on a firm, flat, and level surface. Lower the attachments and dozer blade on the ground. B Should the Excavator be Stored for a Longer Period of Time, Observe Following Procedures: 1. The whole excavator should be cleaned thoroughly and in all cases stored indoors. If the excavator has to be kept outdoors, lay out wooden planks on even ground, place the excavator on the planks and cover completely.

2. Do an oil change and grease the excavator.

3. Heavily grease the visible section of the cylinder rods.

4. Remove the battery and store indoors.

5. If it is expected that the temperature will sink below the 0 (32 ) mark, add anti-freeze or drain coolant completely.

A Wash the excavator after stopping the engine. If you wash the excavator while running the engine, splashing water gets into the air cleaner through its intake and cause engine damage. Carefully wash and do not splash water over the air cleaner while the engine is running. B Observe Following Procedures when the Machine is to be Operated after Long Storage. 1. Wipe off the grease from the hydraulic cylinder rods.

2. Turn on the engine and operate the attachments and the drive mechanisms under no load in order to circulate the

hydraulic oil. (If the machine is stored for longer than one month, do steps 1 and 2 once every month.)

Periodic replacement of important component parts

To ensure safety in operation, you are strongly requested to inspect and service the machine at regular intervals. For added safety, ask your KUBOTA dealer to replace the following important component parts. These parts are prone to degradation in material or subject to wear and tear with time. It is difficult to judge how much they have been affected at regular inspection. It is therefore necessary to replace them with new ones, whether wear is visible or not after a specified time of use. If any of them is found to be worn before the specified use, they must be repaired or replaced the same as other parts. If any of the hose clamps are found deformed or cracked, the hose clamps must also be replaced. For the hydraulic hoses other than the ones to be replaced periodically, inspect them for the following points. If found loose or very worn, tighten and / or replace the hose. When replacing the hydraulic hoses, change their O rings and sealing components with new ones. For replacement of the important parts, contact your KUBOTA dealer.

A At the following periodic inspections, check the fuel hoses and hydraulic hoses as well.

Inspection Interval Check points Daily Checks Oil leak at fuel and hydraulic hose connections and points Every month Oil leak at fuel and hydraulic hose connections and points Damages at fuel and hydraulic hose (cracks, chafing) Every year Oil leak at fuel and hydraulic hose connections and points Interference, deformation, degradation, twist and other damages (cracks, chafing) of fuel and hydraulic hoses

List of important component parts

No. Component parts Used place Q'ty Period 1 Fuel hose Fuel tank - Water separator 1 Every 2 years or 4000 hours Water separator - Fuel filter 1 Fuel filter - Fuel pump 1 Fuel pump - Fuel nozzle 1 Fuel nozzle - Fuel tank 2 2 Hydraulic hose (suction) Tank - Main pump 1 3 Hydraulic hose (delivery) Main pump - Control valve 3 Main pump - Pilot filter 1 Pilot filter - Change valve 2 4 Hydraulic hose (Boom cylinder) Control valve - Boom cylinder *2 5 Hydraulic hose (Arm cylinder) Control valve - Pipe, Boom *2 Pipe, Boom - Arm cylinder *2 6 Hydraulic hose (Bucket cylinder) Control valve - Pipe, Boom *2 Pipe, Boom - Bucket cylinder *2 7 Hydraulic hose (Swing cylinder) Control valve - Swing cylinder 2 8 Hydraulic hose (Dozer cylinder) Control valve - Rotary joint 2 Rotary joint -Pipe 2 Pipe - Dozer cylinder 2 9 Hydraulic hose (Service port) Control valve - Pipe, Boom *2 Pipe, Boom - Pipe, Boom *2 Pipe, Boom - Pipe, Arm *2 10 Hydraulic hose (Swivel motor) Control valve - Swivel motor 2

To prevent serious damage to the hydraulic system, use only a KUBOTA genuine hydraulic hose. (Since especially * marks are super wear resistance hoses, please surely use a KUBOTA genuine hydraulic hose.)

RECOMMENDED OILS

1. Before delivery the hydraulic oil used was Shell Tellus S2M46.

2. Use engine oil API service classification CF/CF-4 or better and SAE10W-30.

3. Use SAE 90 (API, GL-4/GL-5) as drive unit oil for all seasons.

C Engine Oil: A Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper SAE Engine Oil according to the ambient temperatures. Above 25 (77 ) SAE 30 or SAE 10W-30, SAE 15W-40 0 to 25 (32 to 77 ) SAE 20 or SAE 10W-30, SAE 15W-40 Below 0 (32 ) SAE 10W or SAE 10W-30, SAE 15W-40

A Refer to the following table for the suitable API classification engine oil according to the engine type (with internal EGR, external EGR or non-EGR) and the fuel. Fuel used Engine oil classification (API classification) Oil class of engines except external EGR Oil class of engines with external EGR Ultra Low Sulfur Fuel [<0.0015% (15 ppm)] CF, CF-4, CG-4, CH-4 or CI-4 CF or CI-4 (Class CF-4, CG-4 and CH-4 engine oils cannot be used on EGR type engines)

EGR: Exhaust Gas Re-circulation

A The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines, and cannot be used on this machine. except external EGR with external EGR Model U25 --­

C Fuel: A Cetane number of 45 is minimum. Cetane number greater than 50 is preferred, especially for temperatures below -20

(-4

) or elevations above 1500 m (5000 ft). A Diesel fuels specified to EN 590 or ASTM D975 are recommended. A No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service. (SAE J313 JUN87)

BIODIESEL FUEL (BDF)

B0-B20 Biodiesel fuels (BDF): mixed diesel fuels containing 20% or less biodiesel can be utilized under the following conditions.

A Concentrations greater than B5 (5%) are NOT approved for common rail engines and engines with aftertreatment device. Such fuel use can cause damage and reduce engine life. A Refueling and handling fuel should be done with caution in order to avoid contact with the fuel and spillage that could create a potential environmental or fire hazard. Wear appropriate protective equipment when refueling. C Applicable BDF:

1. Blended diesel fuels containing 6% thru 20% BDF (B6 - B20) which comply with American Society for Testing and Materials (ASTM) D7467 Standard, as revised, can be used without adversely affecting the performance and durability of the engine and fuel system components.

2. Any mineral oil diesel fuel, if used, must conform to ASTM D975 (or the European EN590) Standard, as revised. B100 fuel used to make Biodiesel blended fuels must meet ASTM D6751 (or EN14214) Standard, as revised. The final blended fuel B20 must conform to ASTM D7467 Standard, as revised. Straight vegetable oil is NOT allowed in any blended fuel.

3. Allowable blended fuel is mineral oil diesel fuel blended with B100 (i.e. 100% BDF). The blended fuel ratio shall be less than 20% B100 and 80% or more diesel fuel. The B100 source used for Biodiesel blends must be purchased from an accredited BQ-9000 marketer or producer. More information about qualified marketer(s) and producer(s) can be found at http://www.bq-9000.org .

C Preparation:

1. Before using BDF concentrations greater than B5, you are advised to replace the engine oil, engine oil filter and fuel filter with new oil and filters. For replacement procedures, refer to the "PERIODIC SERVICE" section. C Product Warranty, Emission and Other Precautions:

1. The engine emission control system was certified according to current regulations based on the use of non-BDF. When using BDF, the owner is advised to check applicable local and federal emission regulations and comply with all of them.

2. BDF may cause restricted or clogged fuel filters during cold weather conditions, resulting in the engine not operating properly.

3. BDF encourages the growth of microorganisms which may cause degradation of the fuel. This in turn may cause fuel line corrosion or reduce fuel filter flow earlier than expected.

4. BDF inherently absorbs moisture which may cause degradation of the fuel earlier than expected. To avoid this, drain the water separator and fuel filter port often.

5. Do not use Biodiesel concentrations higher than 20% (i.e. greater than B20). Engine performance and fuel consumption will be affected, and degradation of the fuel system components may occur.

6. Do not readjust the engine fuel control system as this will violate emission control levels for which the equipment was approved.

7. Compared with soybean-based and rapeseed-based feedstock, palm oil-based feedstock has a thicker consistency

(i.e. higher viscosity) at lower temperatures. Consequently, fuel filter performance may be reduced, particularly during cold weather conditions.

8. The KUBOTA Warranty, as specified in the Owner's Warranty Information Guide, only covers defects in product materials and workmanship. Accordingly, any problems that may arise due to the use of poor quality fuels that fail to meet the above requirements, whether biodiesel or mineral oil based, are not covered by the KUBOTA Warranty.

C Routine handling:

1. Avoid spilling BDF onto painted surfaces as this may damage the finish. If fuel is spilled immediately wipe clean and flush with soapy water to avoid permanent damage.

2. When using BDF, you are advised to maintain a full tank of fuel, especially overnight and during short term storage, to reduce condensation within the tank. Be sure to tighten the fuel cap after refueling to prevent moisture build up within the tank. Water in the Biodiesel mixture will damage fuel filters and may damage engine components.

C Maintenance Requirements when using BDF B0 thru B5: Follow the oil change intervals recommended by referring to the "MAINTENANCE" section. Extended oil change intervals may result in premature wear or engine damage. C Maintenance Requirements when using BDF B6 thru B20: The maintenance interval for fuel related parts changes. See the table below for the new maintenance interval. Items Interval Remarks Fuel filter Replace every 250 hrs Fuel hose Check every 100 hrs Replace if any deterioration (crack, hardening, scar or deformation) or damage occurred. Replace every 1 year Consult your local KUBOTA Dealer for this service.

C Long Term Storage:

1. BDF easily deteriorates due to oxygen, water, heat and foreign substances. Do not store B6 thru B20 longer than 1 month and B5 longer than 3 months.

2. When using B6 thru B20 and storing the machine longer than 1 month, drain the fuel from the tanks and replace with light mineral oil diesel fuel. Subsequently, run the engine at least 30 minutes to remove all of the Biodiesel from the fuel lines.

3. When using B5 fuel and storing machine longer than 3 months, drain the fuel from the tanks and replace with light mineral oil diesel fuel. Subsequently, run the engine at least 30 minutes to remove all of the Biodiesel from the fuel lines.

MAIN DIMENSIONS

mm (in.)

(A) (B) (C) (D) (E) (F) (G) (H) (I) (J) U25 590 620 1500 760 1300 1500 4530 3200 2810 1960 CANOPY (23.2) (24.4) (59.1) (29.9) (51.2) (59.1) (178.3) (126.0) (110.6) (77.2)

(K) (L) (M) (N) (O) (P) (Q) (R) (S) (U) U25 1900 2420 360 320 3160 990 4150 4670 4780 800 CANOPY (74.8) (95.3) (14.2) (12.6) (124.4) (39.0) (163.4) (183.9) (188.2) (31.5)

LIFTING CAPACITY

1. The lifting capacities are based on ISO 10567 and do not exceed 75% of the static tilt load of the machine or 87% of the hydraulic lifting capacity of the machine.

2. The strokes are as follows.

(1) The load point corresponds to the front bolt part of the arm.

(2) The machine positions are (i) over - front (Blade down), (ii) over - front (Blade up), and (iii) over - side.

(3) The operating cylinder is the boom cylinder.

3. The bucket of the excavator, the hook, the sling and other lifting accessories are taken into consideration for the loads. Machine conditions: No bucket, all others according to the standard regulations.

A No loads greater than those values mentioned in the lifting capacity tables are to be lifted. A No loads greater than 1 ton are to be lifted when no safety devices are attached to boom and dozer blade cylinders. A The values mentioned in the table are valid only on even, hard grounds. When lifting on soft ground, the machine can tip over due to the load being concentrated only on one side of the machine. A The table values are calculated at the end of the arm without the bucket. In order to find the allowable loads for machines with bucket, the bucket weight must be subtracted from the values in the table.

A In this manual, the machine's lifting capacity is discussed, but it does not mean that it is recommended to use the machine for lifting jobs. A It is specified in Item 3.4 of ISO 10567:1992 that the following devices must be additionally installed if a hydraulic excavator with the rated lift load of over 1,000 kg at its minimum lifting radius or the tilting moment of over 40,000 N-m is used for lifting loads. (1) Lifting hook

(2) Acoustic alarm or warning lamp for the operator when the rated load or the corresponding tilting moment has been exceeded.

(3) Boom descending control device conforming to ISO 8643:1997

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