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Kubota u25 - User Manual

Kubota u25
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U.S.A. :KUBOTATRACTORCORPORATION
3401
DelAmoBlvd.,Torrance,CA
90503
,U.S.A.
Telephone:(
310
)
370
-
3370
Canada :KUBOTACANADALTD.
5900
14
thAvenue,Markham,Ontario,L
3
S
4
K
4
,Canada
Telephone:(
905
)
294
-
7477
France :KUBOTAEUROPES.A.S
19
-
25
,RueJulesVercruysse,Z.I.BP
88
,
95101
Ar㷅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,OX
9
3
UN,U.K.
Telephone:(
44
)
1844
-
214500
Australia :KUBOTATRACTORAUSTRALIAPTYLTD.
25
-
29
PermasWay,Tru㷅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㷅orDarulEhsanMalaysia
Telephone:(
60
)
3
-
736
-
1388
Philippines :KUBOTAPHILIPPINES,INC.
232
QuirinoHi㷅hway,Baesa,QuezonCity
1106
,Philippines
Telephone:(
63
)
2
-
422
-
3500
Taiwan :SHINTAIWANAGRICULTURALMACHINERYCO.,LTD.
16
,Fen㷅pin㷅
2
ndRd,TaliaoShian㷅Kaohsiun㷅
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㷅nuen㷅,AmphurKhlon㷅luan㷅,
Pathumthani
12120
,THAILAND
Telephone:(
66
)
2
-
909
-
0300
Japan :KUBOTACorporation
Farm&IndustrialMachineryInternationalOperationsHeadquarters
2
-
47
,Shikitsuhi㷅ashi
1
-chome,Naniwa-ku,Osaka,Japan
556
-
8601
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

Table of Contents

Questions and Answers

  • W
    William LyonsAug 17, 2025
    Why Kubota Excavators has starting difficulties?
    • M
      Michael EvansAug 17, 2025
      If your Kubota Excavators is having starting difficulties, several factors could be the cause. Check the fuel tank and filter for impurities and water, and replace the filter if necessary. Remove any water from the fuel tank and check the fuel pipe joint bolts and nuts for looseness. Purge the fuel system. If the oil viscosity is too high, especially in winter, pour hot water over the radiator. If the battery is almost dead, recharge it.
  • J
    Joanna BestAug 19, 2025
    What to do if Kubota u25 Excavators water temperature is too high?
    • D
      Dustin TaylorAug 19, 2025
      If your Kubota Excavators is overheating, several factors could be the cause. Check for a worn or torn fan belt and adjust or replace it if needed. Ensure the coolant level is at the prescribed level. Clean any clogs from the radiator grill or fins. If the coolant is contaminated with rust, replace it and add anti-rust. Replace a defective radiator cap. Clean corroded coolant pipes. Reduce the load if you're continuously operating under full load. Ensure the engine oil level is at the prescribed level and use prescribed fuel.
  • E
    Erik WhiteAug 22, 2025
    What to do if Kubota u25 engine suddenly stops?
    • L
      Lindsay HuertaAug 22, 2025
      If your Kubota Excavators engine suddenly stops, check the fuel level and add fuel if necessary. Also, purge the fuel system.
  • M
    marcus86Aug 25, 2025
    Why Kubota Excavators engine power is insufficient?
    • B
      Brian BakerAug 26, 2025
      If your Kubota Excavators engine power is insufficient, check the fuel level and add fuel if necessary. Also, clean the air filter element.
  • J
    Jason SteeleAug 28, 2025
    What to do if Kubota u25 Excavators boom, arm, bucket, drive, swing and dozer power is too low?
    • T
      Tiffany ZamoraAug 28, 2025
      If the boom, arm, bucket, drive, swing, and dozer power are too low on your Kubota Excavators, add oil if the hydraulic oil level is too low. Replace the hose or joint if there are leakages of hoses and/or joints.
  • S
    Sydney SalazarAug 30, 2025
    Why Kubota u25 exhaust gas color is abnormal?
    • E
      Emily GonzalezAug 30, 2025
      If your Kubota Excavators has abnormal exhaust gas color, use high-quality fuel if the current fuel is poor. Also, drain engine oil to the prescribed oil level if there is too much engine oil.
  • S
    Sean AlvaradoSep 2, 2025
    What to do if Kubota u25 drive direction has deviation?
    • D
      Diana CurrySep 2, 2025
      If your Kubota Excavators drive direction deviates, remove any stones blocking the tracks. Adjust the track if it is too loose or too tight.
  • B
    brownmargaretSep 5, 2025
    What to do if Kubota Excavators drive lever does not move?
    • R
      Robert SullivanSep 5, 2025
      If the drive lever on your Kubota Excavators does not move, bring the lock lever into the "UNLOCK" position.
  • M
    Molly SilvaSep 7, 2025
    What to do if Kubota u25 swing motor and front attachment does not work?
    • M
      Martin KellySep 7, 2025
      If the swing motor and front attachment on your Kubota Excavators do not work, bring the lock lever into the "UNLOCK" position.
  • A
    ashley29Sep 12, 2025
    What to do if Kubota Excavators oil pressure is too low?
    • M
      Melody WalkerSep 12, 2025
      If the oil pressure is too low in your Kubota Excavators, stop the engine immediately, as it may have developed a fault.

Summary

ABBREVIATION LIST

GENERAL SYMBOLS

FOREWORD

SAFETY FIRST GUIDELINES

Defines DANGER, WARNING, CAUTION, IMPORTANT, and NOTE symbols for safety.

SAFE OPERATION

BEFORE OPERATION CHECKS

Ensures the excavator is ready and safe before starting.

STARTING THE EXCAVATOR

Step-by-step guide for safely starting the excavator engine.

SAFETY FOR CHILDREN

Precautions to protect children from hazards around the excavator.

AFTER OPERATION PROCEDURES

Steps to secure the machine after use.

SAFE LOADING AND TRANSPORT

Guidelines for safely loading and transporting the excavator.

DANGER, WARNING, AND CAUTION LABELS

Identification and explanation of various safety labels on the machine.

CARE OF SAFETY LABELS

Instructions for maintaining and replacing safety labels.

DEALER SERVICE

TECHNICAL DATA

DESCRIPTION OF MACHINE PARTS

INSTRUMENT PANEL AND CONTROL ELEMENTS

INSTRUMENT PANEL AND SWITCHES

Identifies switches and indicators on the main panel.

INSTRUMENT PANEL INDICATORS

Details warning lamps, gauges, and LCD display elements.

CONTROL PEDALS AND LEVERS

Explains the function of various control pedals and levers.

CHECKS BEFORE START

DAILY CHECKS

Essential checks performed before each operation for safety and machine health.

SEAT ADJUSTMENT AND LOCKING

Covers sliding the seat and locking controls for safety.

OPENING AND CLOSING PARTS

Procedures for opening the engine hood and fuel tank cover.

TOOL STORAGE AND SAFETY DEVICE HANDLING

Locating tools and handling control lever locks.

ROPS;OPG SAFETY FEATURES

Information on Roll-Over Protective Structures and Operator Protective Guards.

OPERATION OF THE ENGINE

STARTING THE ENGINE

Step-by-step guide to start the engine safely.

ENGINE OPERATION INDICATORS

Explains gauges, lamps, and LCD displays during engine operation.

ENGINE STARTING AND STOPPING PROCEDURES

Covers cold weather starting, stopping, and auxiliary battery use.

EXCAVATOR OPERATION

RUNNING-IN THE NEW EXCAVATOR

Guidance for the initial 50 working hours for longevity.

STARTING AND BASIC CONTROLS

Procedures for starting, adjusting seat, lock levers, lights, and buzzer.

OPERATIONAL PROCEDURES

Detailed steps for using boom, arm, bucket, swing, dozer, driving, and turning.

TRANSPORTING THE EXCAVATOR ON A TRUCK

LIFTING OF THE EXCAVATOR

MAINTENANCE

MAINTENANCE INTERVALS

Overview of maintenance tasks and their recommended intervals.

DAILY CHECKS

Essential checks performed before each operation for safety and machine health.

PERIODIC MAINTENANCE (BY SERVICE HOURS)

Detailed maintenance procedures based on operating hours (50, 200, 500, etc.).

OTHER ADJUSTMENTS AND REPLACEMENTS

PURGING OF THE FUEL SYSTEM

Procedure to remove air from the fuel system after filter changes.

ADJUSTMENT OF TRACKS

How to adjust track tension for rubber and steel tracks.

CHANGING THE BUCKET

FUSES

REPLACING FUSES

Steps for replacing blown fuses in the fuse box.

SLOW BLOW FUSE

Information on slow blow fuses for circuit protection.

TROUBLESHOOTING

COMMON TROUBLESHOOTING

Table of common engine, hydraulic, and drive system problems and solutions.

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

Explains error codes displayed on the LCD for system diagnostics.

OPERATION UNDER COLD WEATHER CONDITIONS

PREPARATION FOR OPERATION IN COLD WEATHER

Steps for preparing the machine for cold temperatures.

PROCEDURE AFTER DONE WORK

Post-operation procedures to prevent cold weather damage.

LONG STORAGE

PROCEDURES FOR STORING THE EXCAVATOR

Guidelines for storing the machine for extended durations.

PROCEDURES FOR OPERATION AFTER LONG STORAGE

Steps to prepare the machine for use after storage.

PERIODIC REPLACEMENT OF IMPORTANT COMPONENT PARTS

RECOMMENDED OILS

MAIN DIMENSIONS

LIFTING CAPACITY

Kubota u25 Specifications

General IconGeneral
Engine Power14.9 kW (20 hp)
Max Dig Depth2, 620 mm
Max Reach4, 740 mm
Max Reach at Ground Level4, 690 mm
Transport Length3, 990 mm
Transport Width1, 490 mm
Transport Height2, 490 mm

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