Kubota U25-3S Operator's Manual
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Kubota U25-3S 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.
5900 14th 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 Branch
Via Grandi, 29 20068 Peschiera Borrome (MI) Italy
Telephone : (39)02-51650377
Germany
: KUBOTA BAUMASCHINEN GmbH
Steinhauser str, 100, 66482 Zweibrucken Rheinlandpfalz Germany
Telephone : (49)6332-4870100
U.K.
: KUBOTA (U.K.) LTD.
Dormer Road, Thame, Oxfordshire, OX9 3UN, 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 Malaysia
Telephone : (60)3-736-1388
Philippines : KUBOTA PHILIPPINES, INC.
155 Panay Avenue, South Trian le Homes, 1103 Quezon City, Philippines
Telephone : (63)2-9201071
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 Corporation
Farm & Industrial Machinery International Operations Headquarters
2-47, Shikitsuhi ashi 1-chome, Naniwa-ku, Osaka, Japan 556-8601

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  • Page 1 Telephone : (49)6332-4870100 U.K. : KUBOTA (U.K.) LTD. Dormer Road, Thame, Oxfordshire, OX9 3UN, 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 Malaysia Telephone : (60)3-736-1388 Philippines : KUBOTA PHILIPPINES, INC. 155 Panay Avenue, South Trian le Homes, 1103 Quezon City, Philippines Telephone : (63)2-9201071 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 Corporation Farm & Industrial Machinery International Operations Headquarters...
  • Page 2 LIST OF ABBREVIATION American Petroleum Institute ASTM American Society for Testing and Materials, USA CECE Committee for European Construction Equipment German Institute for Standards, Federal Republic of Germany European Standard FRONT "Front" means the front view towards the boom and dozer High speed International Standardization Organization Japanese Industrial Standard...
  • Page 3 GENERAL SYMBOLS The instruments and operation elements have been marked with a series of symbols in order to simplify the opera- tion of your excavator. These symbols are listed below with the respective descriptions. Safety alert Symbol Boom swing (left) Alarm lamp “Fuel level too low”...
  • Page 4 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 the fine materials and under rigid quality control systems. It will give you long, satisfactory service.

  • Page 5: Table Of Contents

    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 SLIDING THE SEAT ....................6 OPENING AND CLOSING OF PARTS..............7 Opening / Closing of the Engine Bonnet................
  • Page 6 CONTENTS Pattern Change....................... 18 OPERATION OF THE BOOM................19 OPERATION OF THE ARM................... 19 OPERATION OF BUCKET ..................20 SWIVEL(UNIT SWING)OPERATION ..............20 BOOM SWING OPERATION................. 20 OPERATION OF THE DOZER ................20 SERVICE PORT OPERATION ................21 DRIVING ........................ 21 Drive Levers (Right, Left)....................
  • Page 7 Fuse Capacities and Circuits ..................52 Slow Blow Fuse ......................53 TROUBLESHOOTING....................54 KUBOTA I.C.S. NAVIGATION LIST OF MESSAGES ........... 55 OPERATION UNDER COLD WEATHER CONDITIONS .......... 57 PREPARATION FOR OPERATION IN COLD WEATHER ........57 PROCEDURE AFTER DONE WORK..............57 LONG STORAGE ......................
  • Page 9 3. For your safety, a ROPS/OPG (Top Guard Level I) at low engine speed. with a seat belt is installed by KUBOTA. A Engage the lever lock to prevent accidental pattern A ROPS: Roll-Over Protective Structure change.
  • Page 10 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.
  • Page 11 SAFE OPERATION 7. Precautions against tipping over. Keep away from STARTING OF THE EXCAVATOR steep slopes and embankments. Do not swing the bucket downhill. Lower the dozer during digging. Keep the bucket as low as possible while driving uphill. Turn 1.
  • Page 12 SAFE OPERATION SAFE LOADING AND TRANSPORT OF AFTER OPERATION THE EXCAVATOR Before leaving the machine, 1. Observe all regulations concerning the transport of A Park the excavator on a firm, flat and level surface. excavators on public roads. A Lower the attachments and the dozer blade to the 2.
  • Page 13 "LOCK" position. gangrene or serious allergic reactions. 17. KUBOTA uses no parts which are lined with asbestos. 10. To avoid environmental damage from acid and heavy Do not use these kind of parts even if they are metals, do not throw the battery away.
  • Page 14 SAFE OPERATION 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.
  • Page 15 SAFE OPERATION...
  • Page 16 SAFE OPERATION...
  • Page 17 SAFE OPERATION...
  • Page 18 SAFE OPERATION (1) Code No. 6C040-5559-1 (2) Code No. RC108-5754-1 (4) Code No. RC418-5737-2 (3) Code No. TA040-4958-1 Keep away from fan and Do not touch hot parts fan belt. such as exhaust etc. 1BAAAAQAP0860...
  • Page 19 2. Clean danger, warning and caution labels with soap and water, 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.

  • Page 21: Safe Operation

    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.

  • Page 22: Technical Data

    TECHNICAL DATA TECHNICAL DATA KUBOTA EXCAVATOR Model name Type Canopy Operating weight 2550 (including operator's) Type Water cooled 3 cylinder diesel engine Model name KUBOTA D1105-E4-BH-1 Total displacement 1123 Engine Engine power 15.5 (21) SAE gross kW(Hp) Rated speed 2400...

  • Page 23: Description Of Machine Parts

    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 (8) Arm cylinder (9) Boom (10) Operator's seat (11) Engine bonnet (12) Drive sprocket (13) Front idler (14) Working light...

  • Page 24: Instrument Panel And Control Elements

    INSTRUMENT PANEL AND CONTROL ELEMENTS INSTRUMENT PANEL AND CONTROL ELEMENTS B Instrument Panel, Switch DEPICTED CONTENTS (5) Working light switch (1) Starter switch (6) Display selector switch (2) LCD display (7) Travel speed switch (3) Warning lamp (8) Speed indicator light (4) Horn switch...
  • Page 25 INSTRUMENT PANEL AND CONTROL ELEMENTS 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.

  • Page 26: Checks Before Start

    CHECKS BEFORE START CHECKS BEFORE START DAILY CHECKS SLIDING THE SEAT In order to avoid damage, it is important to check the condition of the excavator before starting. To avoid personal injury: A Lock the lever for attachment control when sliding the seat.

  • Page 27: Opening And Closing Of Parts

    CHECKS BEFORE START OPENING AND CLOSING OF PARTS BOpening and Closing of the Fuel Tank BOpening / Closing of the Engine Bonnet Cover To open the tank cover, first insert the key into the key slot and turn it counterclockwise to unlock, then open the tank To avoid personal injury: cover upward.

  • Page 28: Keeping The Tools

    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.

  • Page 29: Roll-Over Protective Structures (Rops) / Operator Protective Guards Of Top Guard Level I (Opg (Top Guard Level I))

    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.

  • Page 30: Operation Of The Engine

    OPERATION OF THE ENGINE OPERATION OF THE ENGINE To avoid personal injury: 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 danger exhaust fume poisoning, do not operate the machine in a closed building without proper ventilation.

  • Page 31: Display Selector Switch

    OPERATION OF THE ENGINE BCharge Lamp This warning lamp lights up if the charging system fails the BDisplay Selector Switch engine running. When the starter switch is turned "RUN" with the engine off, the lamp lights up, and when the Press the display selector switch.

  • Page 32: Lcd Display For Normal Operation

    OPERATION OF THE ENGINE BLCD Display for Normal Operation C Fuel gauge To avoid personal injury: 2. The message shown above appears. A Before adding fuel, be sure to stop the engine. 3. Add fuel. A Be sure to keep open flame away from the 4.

  • Page 33: Lcd Display For Warning

    A Warnings and errors are displayed and an alarm buzzer beeps. When the fuel level is very low, the lamp (yellow) starts A Let your KUBOTA dealer inform you of details flashing and the following message appears in the concerning care and maintenance. display.

  • Page 34: Checkpoints After Starting The Engine

    A Warning lamp for engine oil lights up during operation. STOPPING THE ENGINE A In these cases, the excavator must be checked and serviced by your local the KUBOTA dealer. 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.

  • Page 35: Engine Stop Lever

    OPERATION OF THE ENGINE BObserve Following Guidelines when BEngine Stop Lever 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 To avoid personal injury: WITH EACH OTHER.

  • Page 36: Excavator Operation

    EXCAVATOR OPERATION EXCAVATOR OPERATION RUNNING-IN OF THE NEW EXCAVATOR STARTING 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 To avoid personal injury: 50 work hours.

  • Page 37: Lock Lever

    EXCAVATOR OPERATION 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.

  • Page 38: Two Pattern Selection System(Tpss)

    EXCAVATOR OPERATION 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).

  • Page 39: Operation Of The Boom

    EXCAVATOR OPERATION OPERATION OF THE BOOM OPERATION OF THE ARM To raise the boom, pull the attachment control lever back. Pull back the attachment control lever and the arm will be The boom is equipped with a cushion cylinder which helps pulled in.

  • Page 40: Operation Of Bucket

    EXCAVATOR OPERATION OPERATION OF BUCKET BOOM SWING OPERATION To dig using the bucket, move the right attachment control 1. Flip the pedal lock up to unlock the pedal. 2. Step on the left side of the pedal ( ) to swing the lever from the neutral position, left.

  • Page 41: Service Port Operation

    EXCAVATOR OPERATION SERVICE PORT OPERATION DRIVING To avoid personal injury: To avoid personal injury or death: A Tilt the service port pedal forward when the A Before starting the engine, make sure that no pedal is not used. Be sure to lock the pedal. one is near the excavator.

  • Page 42: Drive Levers (Right, Left)

    EXCAVATOR OPERATION BDrive Levers (Right, Left) To avoid personal injury or death: A If the swing frame has been turned 180 , i.e. the dozer 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).

  • Page 43: Turns

    EXCAVATOR OPERATION TURNS C Change of Direction while Travelling 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.

  • Page 44: Spin Turn

    While travelling uphill, keep the lower edge of the bucket approx. 20 to 40 cm 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.

  • Page 45: Parking On A Slope

    EXCAVATOR OPERATION PARKING ON A SLOPE IMPORTANT INFORMATION ON EXCAVATOR OPERATION A Do not try to crush concrete or boulders using side To avoid personal injury or death: swings with the bucket. Also avoid using side sweeps A When excavator parked left of the bucket to move earth piles.

  • Page 46: Transporting The Excavator On A Truck

    TRANSPORTING THE EXCAVATOR ON A TRUCK 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.
  • Page 47 TRANSPORTING THE EXCAVATOR ON A TRUCK 5. Block the tracks and tie down the excavator with suitable chains approved method (check appropriate state regulation). 6. Before unloading, raise the dozer and bucket from the truck bed.

  • Page 48: Lifting Of The Excavator

    LIFTING OF THE EXCAVATOR LIFTING OF THE EXCAVATOR (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 To avoid personal injury or death: attaching the cables or straps.
  • Page 49 LIFTING OF THE EXCAVATOR 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* 2540 kg Load / Cable 8500 N (866.7 kgf) Minimum Cable Diameter 12.5 mm or more (Safety factor=6)

  • Page 50: Maintenance

    MAINTENANCE MAINTENANCE MAINTENANCE INTERVALS Hour meter indicator Ref. Check points Intervals Consequently page check Daily check Coolant change every 2 years Fuel check Daily check check Daily check Engine oil change every 250 hrs check Daily check Hydraulic oil change every 1000 hrs Lubrication points Daily check...
  • Page 51 MAINTENANCE Hour meter indicator Ref. Check points Intervals Consequently page 1000 check Daily check Coolant change every 2 years Fuel check Daily check check Daily check Engine oil change every 250 hrs check Daily check Hydraulic oil change every 1000 hrs Lubrication points Daily check Radiator and oil cooler...
  • Page 52 *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...

  • Page 53: Daily Checks

    MAINTENANCE DAILY CHECKS 3. If necessary, open the tank cover with the starter key, open the cap and add fuel. For your own safety and to assure the long life of your A See "Opening and Closing of the Fuel Tank Cap" and machine, a careful check should be made before each see Fuel supply in the "LCD Display for Normal operation.

  • Page 54: Check Engine Oil Level

    MAINTENANCE BCheck Engine Oil Level BCheck Hydraulic Oil Level To avoid personal injury: To avoid personal injury: A Stop the engine and remove the key before A Stop the engine and remove the key before checking the oil level. checking the oil level. A Use engine oil with the correct viscosity.

  • Page 55: Checking Coolant Level

    MAINTENANCE A First lower all attachments on the ground then stop the engine and remove the key. BChecking Coolant Level A While greasing, take care not to step on the bucket teeth. A When doing excavation work water, To avoid personal injury: generously grease the following points.

  • Page 56: Check Fan Belt

    MAINTENANCE 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.

  • Page 57: Regular Checks And Maintenance Work

    REGULAR CHECKS AND MAINTENANCE WORK REGULAR CHECKS AND MAINTENANCE WORK EVERY 50 SERVICE HOURS BDraining Water Separator BDraining the Water from the Fuel Tank 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 cock so that To avoid personal injury: no fuel can run out.

  • Page 58: Battery

    REGULAR CHECKS AND MAINTENANCE WORK 1. Check the battery fluid level and add distilled water if necessary. BBattery 2. Clean the battery caps (ventilation holes). To avoid the possibility of a battery explosion: For refillable type battery, follow the instructions below.

  • Page 59: Battery Charging

    REGULAR CHECKS AND MAINTENANCE WORK BBattery Charging BGreasing of Swing Bearing Teeth 1. Pump grease with grease gun through the grease nipple. 2. Grease at each 90 (1.58 rad.) position of the swing To avoid personal injury: frame. A When the battery is being activated, hydrogen 3.

  • Page 60: Every 200 Service Hours

    REGULAR CHECKS AND MAINTENANCE WORK EVERY 200 SERVICE HOURS BChecking Radiator Hoses and Clamps Do all 50 hour servicing at the same time. BChecking Fan Belt Tension To avoid personal injury: C Check and adjustment of the fan belt tension A Wait long enough for the radiator coolant to cool down.

  • Page 61: Inspection And Cleaning Air Filter Element

    REGULAR CHECKS AND MAINTENANCE WORK C Cleaning with compressed air Pressure of compressed air must be under 205 kPa (2.1 BInspection and Cleaning Air Filter Element ), and the cartridge should be blown clean from the Open the engine bonnet and remove the dust-cover. Take inside to the outside until the dust deposits are remarkably out only outer element, clean the element, case interior reduced.

  • Page 62: Checking Fuel Line And Intake Air Line

    REGULAR CHECKS AND MAINTENANCE WORK EVERY 250 SERVICE HOURS BChecking Fuel Line and Intake Air Line Do all 50 hour servicing at the same time. 1. Check to see that all lines and hose clamps are tightened and not damaged. BEngine Oil Change (First Engine Oil 2.

  • Page 63: Replacing Engine Oil Filter Cartridge (First Engine Oil Filter Change After 50 Service Hours)

    REGULAR CHECKS AND MAINTENANCE WORK 5. Let the engine run for approx. 5 min. and make sure that the engine oil indicator lamp does not light up. Then stop the engine and remove the key. 6. The engine oil level will sink parallel to the oil filter capacity after the engine is started.

  • Page 64: Every 500 Service Hours

    REGULAR CHECKS AND MAINTENANCE WORK EVERY 500 SERVICE HOURS BReplacing Fuel Filter Cartridge Do all 50 and 250 hour servicing at the same time. BDrive Unit Oil Change(First Oil Change of the 100 hours) To avoid personal injury: A Keep fire away. 1.

  • Page 65: Replacing Hydraulic Return Filter Element (First Replacement After 250 Service Hours)

    REGULAR CHECKS AND MAINTENANCE WORK BReplacing Hydraulic Return Filter Element (First replacement after 250 service hours) To avoid personal injury: A Remove the oil filter only after the oil in the hydraulic tank has cooled down. (A) Oil BReplacing the Hydraulic Pilot Filter Element To avoid personal injury: A Before replacing the element, wait long enough...

  • Page 66: Hydraulic Oil Change (Including Replacing Of The Suction Filter In The Hydraulic Tank)

    REGULAR CHECKS AND MAINTENANCE WORK 2. Remove the drain plug on the underside of the hydraulic tank and drain the oil. BHydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank) To avoid personal injury: A Wait long enough for the hydraulic fluid to cool down.

  • Page 67: Hydraulic Oil Check With Hydraulic Breakers

    200 Hrs. EVERY 1500 SERVICE HOURS BChecking Fuel Injection Nozzle(Injection Pressure) Consult your local KUBOTA Dealer for this service. EVERY 2000 SERVICE HOURS Do all 50, 200, 250, 500 and 1000 hour servicing at the same time. BChanging Front Idler and Track Roller Oil A Contact your KUBOTA dealer for details.

  • Page 68: Annual Servicing

    If a fuse blows out soon after having been 2. To clean, rinse the radiator with water. replaced, contact your nearest KUBOTA dealer. Never 3. Close the drain plug or cock and fill the radiator and the recovery tank with coolant fluid. Let the engine idle use a fuse other than specified.

  • Page 69: Replacing Fuel Hoses And Clamps

    REGULAR CHECKS AND MAINTENANCE WORK BReplacing Fuel Hoses and Clamps Replace the hoses and clamps. (See "Checking Fuel and Intake Air Line" in "EVERY 200 SERVICE HOURS") (1) Recovery tank (A) "FULL" (B) "LOW" Radiator 2.4 L Recovery tank 0.6 L (1) Fuel lines (2) Clamp bands A Do not operate the engine without coolant.

  • Page 70: Other Adjustments And Replacements

    OTHER ADJUSTMENTS AND REPLACEMENTS OTHER ADJUSTMENTS AND REPLACEMENTS PURGING OF THE FUEL SYSTEM After adjustment is completed: Using the socket wrench, tighten the grease nipple. 1. Fill up the excavator with fuel. Tightening torque must be between 98 to 108 N-m. 2.

  • Page 71: Special Information When Using Rubber Tracks

    OTHER ADJUSTMENTS AND REPLACEMENTS To avoid serious injury or death: A Do not work under the machine in this condition. A For your safety do not rely on hydraulically supported devices, they may leak down and suddenly drop or be accidentally lowered. To avoid personal injury or death: A When lifting the machine itself with an attachment, place a safety block or safety post...

  • Page 72: Changing The Bucket

    A Read the manual of the attachment to do a correct operation safely when other attachments are installed instead of Kubota specified bucket. (1) Fuse box 5A Room Light 20A Work Light 5A Meter Sub 10A Alternator Fuel Pump...

  • Page 73: Slow Blow Fuse

    OTHER ADJUSTMENTS AND REPLACEMENTS BSlow Blow Fuse Slow blow fuse is provided to protect the electrical circuits. If the fusible link is blown, check the electrical circuits for trouble and then replace with a new compatible slow blow fuse. (1) Slow blow fuse (2) Slow blow fuse Capacity of the slow blow fuse...

  • Page 74: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING If the excavator dose not show the desired performance, or when trouble arises, refer to the table below and undertake appropriate measures. Trouble Cause Countermeasure *Check fuel tank and filter Fuel is too viscous *Remove impurities and water *If necessary, replace filter *Remove water from the fuel tank *Check fuel pipe joint bolts and nuts for looseness...

  • Page 75: Kubota I.c.s. Navigation List Of Messages

    TROUBLESHOOTING KUBOTA I.C.S. NAVIGATION LIST OF MESSAGES If an error occurs with the machine, one of the following messages appears in the LCD display. In case of a trouble, immediately contact your local dealer for inspection and repair. Warning Problem or failure...
  • Page 76 A When the key is turned from OFF to RUN repeatedly 10 times, the message disappears. C In case the service hour meter replaced due to any trouble with it, the meter is set to "0". Contact your KUBOTA dealer...

  • Page 77: Operation Under Cold Weather Conditions

    OPERATION UNDER COLD WEATHER CONDITIONS OPERATION UNDER COLD WEATHER CONDITIONS PREPARATION FOR OPERATION IN COLD PROCEDURE AFTER DONE WORK WEATHER Clean the excavator thoroughly after work and wipe dry. Otherwise mud and earth on the tracks could freeze if the 1.

  • Page 78: Long Storage

    LONG STORAGE LONG STORAGE To avoid personal injury: A Do not clean the excavator with the engine running. A To avoid the danger of exhaust fume poisoning, do not operate the engine in a closed building without proper ventilation. A When storing, remove the key from the starter switch to avoid unauthorized persons from operating the excavator and getting injured.
  • Page 79 Hydraulic hose (Swivel motor) Control valve - Swivel motor To prevent serious damage to the hydraulic system, use only a KUBOTA genuine hydraulic hose. (Since especially * marks are super wear resistance hoses, please surely use a KUBOTA genuine hydraulic hose.)

  • Page 80: Recommended Oils

    RECOMMENDED OILS RECOMMENDED OILS A Before delivery, the hydraulic oil used was an ISO 46 viscosity grade. A Use engine oil API service classification CD, CE or CF. A Use SAE 90 (API, CLA/GL5) as drive unit oil for all seasons. Application Viscosity Shell...

  • Page 81: Main Dimensions

    MAIN DIMENSIONS MAIN DIMENSIONS 1500 1300 1500 4530 3200 2810 1960 CANOPY 1900 2420 3160 4150 4670 4780 CANOPY...

  • Page 82: Lifting Capacity

    LIFTING CAPACITY LIFTING CAPACITY 1. The lifting capacities are based on ISO 10567 and do not exceed 75% of the static tilt load of the machine or 87% of the hydraulic lifting capacity of the machine. 2. The strokes are as follows. (1) The load point corresponds to the front bolt part of the arm.
  • Page 83 LIFTING CAPACITY...

This manual is also suitable for:

U25-3Super u25 series

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