The Kubota U35-4 excavator operator's manual is available to view online, download, or order hard copy. This manual features proper operations, maintenance, and safety information.
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OPERATOR'S MANUAL
MODEL U35-4 English (U.S.A.)
U 3 5 - 1BAAEAJAP0490 1BAAEAJAP0780 Code No. RC788-8121-7 4 READ AND SAVE THIS MANUAL PRINTED IN JAPAN © KUBOTA Corporation 2012
LIST OF ABBREVIATION
Abbreviations Description API ASTM CECE DIN EN OSHA FRONT Hi ISO JIS L L/min Lo MIL OPG (Top Guard Level I) rpm ROPS SAE TPSS AI American Petroleum Institute American Society for Testing and Materials, USA Committee for European Construction Equipment German Institute for Standards, Federal Republic of Germany European Standard Occupational Safety and Health Administration "Front" means the front view towards the boom and dozer High speed International Standardization Organization Japanese Industrial Standard Volume (Liter) Liter per minute Low speed Military Standards Operator Protective Guards of Top Guard Level I Revolutions Per Minute Roll-Over Protective Structures Society of Automotive Engineers, USA Two Pattern Selection System Auto Idle
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. U35-4 AU . L . 12 - 14 . 3 . AK
GENERAL SYMBOLS
The instruments and operation elements have been marked with a series of symbols in order to simplify the operation of excavator. These symbols are listed below with the respective descriptions.
Safety alert Symbol Warning lamp ''Fuel level too low'' System lamp Warning lamp ''Engine Oil pressure'' Warning lamp ''Battery charge'' Indicator lamp ''Glow'' Working light switch Horn Wiper/Washer switch Diesel Hydraulic fluid Gear oil Grease Fast Slow Excavator - Overhead movement toward the front Excavator - Overhead movement toward the rear Boom up Boom down Arm up Arm crowd Bucket crowd Bucket dump Boom swing (left) Boom swing (Right) Dozer raise Dozer lower Operation direction of control lever Operation direction of control lever Read operator's manual Engine stop control lamp
FOREWORD
You are now the proud owner of a KUBOTA Excavator. This excavator is a product of KUBOTA quality engineering and manufacturing. It is made of fine materials and under a rigid quality control system. It will give you long, satisfactory service. To obtain the best use of your excavator, please read this manual carefully. It will help you become familiar with the operation of the excavator and contains many helpful hints about excavator maintenance. It is KUBOTA's policy to utilize as quickly as possible every advance in our research. The immediate use of new techniques in the manufacture of products may cause some small parts of this manual to be outdated. KUBOTA distributors and dealers will have the most up-to-date information. Please do not hesitate to consult with them.
3SAFETY 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. 3DANGER : Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. 3 WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. 3CAUTION : 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 ............................................................................................
DEALER SERVICE...................................................................................................... 1
TECHNICAL DATA...................................................................................................... 2
DESCRIPTION OF MACHINE PARTS........................................................................ 3
INSTRUMENT PANEL AND CONTROL ELEMENTS................................................. 4
CHECKS BEFORE START ......................................................................................... 6
DAILY CHECKS....................................................................................................... 6
CHECKING THE DEVICES ..................................................................................... 6
Starter Switch ...................................................................................................................6
Display Selector Switch....................................................................................................7
LCD for Normal Operation................................................................................................7
Warning Lamp ................................................................................................................10
LCD for Warning.............................................................................................................10
Setting the Clock.............................................................................................................12
Reordering the year/month/day and Changing the AM/PM System to the 24-hour One 13
Log Record.....................................................................................................................14
Periodic Check................................................................................................................15
If All the Check Points are not Displayed at a Glance on a Single Screen.....................15
When the Check-up is Completed..................................................................................17
Horn Switch ....................................................................................................................17
Light Switch ....................................................................................................................17
AUX Port Enable Switch.................................................................................................17
Auto Idle Control Switch .................................................................................................18
Throttle Potentiometer....................................................................................................18
Travel Speed Switch.......................................................................................................18
CAB TYPE MACHINES ......................................................................................... 19
Wiper/Washer Switch .....................................................................................................19
Interior Lamp...................................................................................................................19
Opening/Closing of CAB Door........................................................................................20
Opening/Closing of Front CAB Window..........................................................................20
Opening/Closing of Side CAB Window...........................................................................20
Emergency Hammer.......................................................................................................20
AIR CONDITIONER............................................................................................... 21
Air Flow...........................................................................................................................21
Air Control Vent ..............................................................................................................21
Control Panel..................................................................................................................22
Operation........................................................................................................................22
HANDLING THE SAFETY DEVICES..................................................................... 22
Pilot Control Lock Lever..................................................................................................22
OPERATION OF THE ENGINE................................................................................. 23
STARTING THE ENGINE...................................................................................... 23
STARTING THE ENGINE UNDER COLD CONDITIONS...................................... 24
STARTING WITH AN AUXILIARY BATTERY ....................................................... 25
Observe Following Guidelines when Starting with an Auxiliary Battery..........................25
CONTENTS
CHECK POINTS AFTER STARTING THE ENGINE ............................................. 25
STOPPING THE ENGINE...................................................................................... 26
Engine Stop Button.........................................................................................................26
Precautions in case of Overheat.....................................................................................26
EXCAVATOR OPERATION ...................................................................................... 27
RUNNING-IN OF THE NEW EXCAVATOR........................................................... 27
Do not Work with Full Engine Rpm's or Full Loads during the First 50 Working Hours..27
Oil Change in the Run-in Stage......................................................................................27
Adjusting the Operator's Seat.........................................................................................27
Seat Belt.........................................................................................................................28
STARTING............................................................................................................. 28
Pilot Control Lock Lever..................................................................................................28
DRIVING ................................................................................................................ 29
Drive Levers (Right,Left).................................................................................................30
TURNS................................................................................................................... 30
Pivot Turn .......................................................................................................................30
Spin Turn........................................................................................................................31
UP AND DOWNHILL DRIVING.............................................................................. 32
PARKING ON A SLOPE ........................................................................................ 32
OPERATION OF THE DOZER .............................................................................. 32
TWO PATTERN SELECTION SYSTEM (TPSS)................................................... 33
Pattern Change...............................................................................................................33
OPERATION OF THE BOOM................................................................................ 34
OPERATION OF THE ARM................................................................................... 34
OPERATION OF THE BUCKET ............................................................................ 35
UNIT SWING AND BOOM SWING OPERATION.................................................. 35
Unit Swing Operation......................................................................................................35
Boom Swing Operation...................................................................................................35
AUXILIARY PORT OPERATION ........................................................................... 36
Selecting the Action Modes............................................................................................36
AUX Port Handling Procedure........................................................................................37
Setting the Maximum Flow Volume................................................................................39
HOW TO RELEASE PRESSURE TRAPPED IN THE HYDRAULIC SYSTEM...... 44
ANGLE BLADE OPERATION................................................................................ 45
1-way or 2-way CIRCUIT SELECTION VALVE OPERATION ............................... 46
AUTO IDLE (AI) OPERATION ............................................................................... 46
IMPORTANT INFORMATION ON EXCAVATOR OPERATION ............................ 47
TRANSPORTING THE EXCAVATOR ON A VEHICLE............................................. 48
LIFTING OF THE EXCAVATOR................................................................................ 50
MAINTENANCE......................................................................................................... 52
MAINTENANCE INTERVALS................................................................................ 52
OPENING AND CLOSING OF COVERS............................................................... 55
Opening/Closing of the Engine Hood .............................................................................55
Opening/Closing of the Side Cover ................................................................................55
Where to store the Tool..........................................