Kubota U25 - Super Series Operator's Manual


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Kubota U25 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