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Komatsu WA270-8 with 6D107E-3 Engine Wheel Loader Service Manual

3,217 pages · Publication CEBM031301

$329.67
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Models
WA270-8 with 6D107E-3 Engine
Serial coverage
A28001 and up
Manual type
Service Manual
Pages
3,217
Publication
CEBM031301
Condition
Brand new
Komatsu WA270-8 with 6D107E-3 Engine Wheel Loader Service Manual, publication CEBM031301

What's inside

From the manual's own table of contents: 377 sections, 700 entries. See sample pages (PDF, 1023 KB)

INDEX AND FOREWORD
ABBREVIATION LIST
FOREWORD, SAFETY, BASIC INFORMATION
HOW TO READ THE SHOP MANUAL
SAFETY NOTICE FOR OPERATION
PRECAUTIONS TO PREVENT FIRE
ACTIONS IF FIRE OCCURS
PRECAUTIONS FOR DISPOSING OF WASTE MATERIALS
ACTIONS TAKEN TO MEET EXHAUST GAS REGULATIONS
PRECAUTIONS FOR DEF
STORE AdBlue/DEF
PRECAUTIONS FOR HANDLING HYDRAULIC EQUIPMENT
PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF PIPINGS
PRECAUTIONS FOR HANDLING ELECTRICAL EQUIPMENT
PRECAUTIONS FOR HANDLING FUEL SYSTEM EQUIPMENT
PRECAUTIONS FOR HANDLING INTAKE SYSTEM EQUIPMENT
PRACTICAL USE OF KOMTRAX
DISCONNECT AND CONNECT PUSH-PULL TYPE COUPLER
PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF CONNECTORS
METHOD FOR DISCONNECTING AND CONNECTING DEUTSCH CONNECTOR
METHOD FOR DISCONNECTING AND CONNECTING SLIDE LOCK TYPE CONNECTOR
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PULL
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PUSH
HOW TO READ ELECTRICAL WIRE CODE
Show all 377 sections
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD
STANDARD TIGHTENING TORQUE TABLE
CONVERSION TABLE
SPECIFICATIONS
SPECIFICATION DRAWING
WEIGHT TABLE
TABLE OF FUEL, COOLANT, AND LUBRICANTS
STRUCTURE AND FUNCTION
UREA SCR SYSTEM
LAYOUT DRAWING OF UREA SCR SYSTEM
UREA SCR SYSTEM DIAGRAM
FUNCTION OF UREA SCR SYSTEM
COMPONENT PARTS OF UREA SCR SYSTEM
SYSTEM
LAYOUT DRAWING OF BOOT-UP SYSTEM
SYSTEM OPERATING LAMP SYSTEM
BATTERY DISCONNECT SWITCH
PREHEATING SYSTEM
ENGINE SYSTEM
LAYOUT DRAWING OF ENGINE SYSTEM
ENGINE CONTROL SYSTEM
AUTOMATIC IDLE STOP SYSTEM
COMPONENT PARTS OF ENGINE SYSTEM
COOLING SYSTEM3 topics
  • LAYOUT DRAWING OF COOLING SYSTEM
  • COOLING FAN CONTROL SYSTEM
  • COMPONENT PARTS OF COOLING SYSTEM
CONTROL SYSTEM5 topics
  • LAYOUT DRAWING OF CONTROL SYSTEM
  • MACHINE MONITOR SYSTEM
  • REARVIEW MONITOR SYSTEM
  • KOMTRAX SYSTEM
  • COMPONENT PARTS OF CONTROL SYSTEM
HYDRAULIC SYSTEM3 topics
  • LAYOUT DRAWING OF HYDRAULIC SYSTEM
  • CLSS
  • COMPONENT PARTS OF HYDRAULIC SYSTEM
POWER TRAIN SYSTEM12 topics
  • LAYOUT DRAWING OF POWER TRAIN SYSTEM
  • OPERATION OF POWER TRAIN SYSTEM
  • DIRECTIONAL SELECTOR SWITCH CONTROL FUNCTION
  • HST CONTROL SYSTEM
  • HST CHARGE SYSTEM
  • HST PUMP CONTROL SYSTEM
  • HST CONTROLLER GEAR SHIFT CONTROL FUNCTION
  • TRANSFER CLUTCH CONTROL FUNCTION
  • HST SYSTEM PROTECTION FUNCTION
  • MAXIMUM SPEED LOW FUEL CONSUMPTION CONTROL
  • KOMATSU TRACTION CONTROL SYSTEM (KTCS)
  • COMPONENT PARTS OF POWER TRAIN SYSTEM
WORK EQUIPMENT SYSTEM8 topics
  • LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM
  • WORK EQUIPMENT CONTROL SYSTEM
  • WORK EQUIPMENT LOCK SYSTEM
  • BUCKET POSITIONER SYSTEM
  • FORK POSITIONER SYSTEM
  • REMOTE POSITIONER SYSTEM
  • ECSS
  • COMPONENT PARTS OF WORK EQUIPMENT SYSTEM
STEERING SYSTEM3 topics
  • LAYOUT DRAWING OF STEERING SYSTEM
  • STEERING COLUMN
  • COMPONENT PARTS OF STEERING SYSTEM
BRAKE SYSTEM7 topics
  • LAYOUT DRAWING OF BRAKE SYSTEM
  • PARKING BRAKE CONTROL SYSTEM
  • COMPONENT PARTS OF BRAKE SYSTEM
  • LAYOUT DRAWING OF AUTO-GREASING SYSTEM
  • SPECIFICATIONS OF AUTO-GREASING SYSTEM
  • FUNCTION OF AUTO-GREASING SYSTEM
  • COMPONENT PARTS OF AUTO-GREASING SYSTEM
UNDERCARRIAGE AND FRAME2 topics
  • FRAME, AXLE MOUNT AND CENTER HINGE PIN
  • TIRE
WORK EQUIPMENT2 topics
  • STRUCTURE OF WORK EQUIPMENT
  • STRUCTURE OF BUCKET
CAB AND ITS ATTACHMENTS2 topics
  • ROPS CAB
  • CAB MOUNT
STANDARD VALUE TABLE
STANDARD VALUE TABLE FOR ENGINE
STANDARD VALUE TABLE FOR ENGINE: WA270-8
STANDARD VALUE TABLE FOR MACHINE
STANDARD VALUE TABLE FOR MACHINE: WA270-8
MACHINE POSTURE AND PROCEDURE FOR MEASURING PERFORMANCE
TESTING AND ADJUSTING
RELATED INFORMATION ON TESTING AND ADJUSTING
TOOLS FOR TESTING AND ADJUSTING
SKETCH OF TOOLS FOR TESTING AND ADJUSTING
ENGINE AND COOLING SYSTEM
TEST ENGINE SPEED
TEST BOOST PRESSURE
TESTING EXHAUST GAS TEMPERATURE
TEST EXHAUST GAS COLOR
TEST AND ADJUST VALVE CLEARANCE
TEST COMPRESSION PRESSURE
TEST BLOWBY PRESSURE
TEST ENGINE OIL PRESSURE
TEST EGR VALVE AND VGT OIL PRESSURE
TEST FUEL PRESSURE
TEST FUEL DISCHARGE, RETURN AND LEAKAGE
BLEED AIR FROM FUEL SYSTEM
TEST FUEL CIRCUIT FOR LEAKAGE
HANDLE CYLINDER CUT-OUT MODE OPERATION
HANDLE NO-INJECTION CRANKING OPERATION
TEST KDPF, SCR AND MUFFLER STACK FOR LOOSENESS AND DAMAGE
TEST INSTALLED CONDITION OF CYLINDER HEADS AND MANIFOLDS
TEST ENGINE PIPING FOR DAMAGE AND LOOSENESS
TEST AND ADJUST AIR CONDITIONER COMPRESSOR BELT TENSION
WRITE ASH IN SOOT ACCUMULATION CORRECTION TO ENGINE CONTROLLER
TEST SCR RELATED FUNCTIONS
CLEAN AdBlue/DEF TANK
POWER TRAIN
TEST AND ADJUST HST OIL PRESSURE
TEST THE CONTROL PRESSURE OF TRANSFER CLUTCH
TEST DRIVE SHAFT FOR LOOSENESS, BACKLASH, AND DAMAGE
TEST STEERING WHEEL
TEST AND ADJUST STEERING CIRCUIT OIL PRESSURE
BLEED AIR FROM STEERING CYLINDER CIRCUIT
RELEASE REMAINING PRESSURE IN BRAKE ACCUMULATOR CIRCUIT
TEST WHEEL BRAKE OIL PRESSURE
TEST AND ADJUST BRAKE ACCUMULATOR CHARGE PRESSURE
TEST BRAKING PERFORMANCE
TEST BRAKE PEDAL
BLEED AIR FROM BRAKE CIRCUIT
TEST LOWERING OF WHEEL BRAKE PRESSURE
TEST WEAR OF WHEEL BRAKE DISC
TEST PARKING BRAKE OIL PRESSURE
TEST PARKING BRAKE PERFORMANCE
RELEASE PARKING BRAKE MANUALLY
TEST WEAR AMOUNT OF PARKING BRAKE DISC13 topics
  • RELEASE REMAINING PRESSURE FROM WORK EQUIPMENT CIRCUIT
  • TEST AND ADJUST WORK EQUIPMENT OIL PRESSURE
  • TEST AND ADJUST WORK EQUIPMENT PPC OIL PRESSURE
  • BLEED AIR FROM WORK EQUIPMENT CIRCUIT
  • TEST COOLING FAN SPEED
  • TEST COOLING FAN CIRCUIT OIL PRESSURE
  • BLEED AIR FROM COOLING FAN CIRCUIT
  • NITROGEN GAS
  • TEST AND ADJUST BUCKET POSITIONER
  • TEST AND ADJUST BOOM POTENTIOMETER LEVER
  • TEST DIRECTIONAL LEVER
  • TEST MULTIFUNCTION MONO-LEVER
  • TEST ACCELERATOR PEDAL
ELECTRICAL SYSTEM7 topics
  • SET AND ADJUST EACH EQUIPMENT
  • SET AND OPERATE MACHINE MONITOR
  • METHOD FOR STARTING UP KOMTRAX TERMINAL
  • ADJUST REARVIEW CAMERA ANGLE
  • HANDLE VOLTAGE CIRCUIT OF ENGINE CONTROLLER
  • HANDLE BATTERY DISCONNECT SWITCH
  • TEST DIODES
DEVICE2 topics
  • BLEED THE AIR OF AUTO-GREASING SYSTEM
  • CHANGING OF LUBRICATION TIME AND LUBRICATION INTERVAL TIMES
Pm CLINIC1 topic
  • Pm CLINIC SERVICE
TROUBLESHOOTING
RELATED INFORMATION ON TROUBLESHOOTING19 topics
  • GENERAL TROUBLESHOOTING POINTS
  • TROUBLESHOOTING POINTS FOR UREA SCR SYSTEM
  • SEQUENCE OF EVENTS IN TROUBLESHOOTING
  • CHECKS BEFORE TROUBLESHOOTING
  • INSPECTION PROCEDURE BEFORE TROUBLESHOOTING
  • TESTING IN ACCORDANCE WITH TESTING PROCEDURE
  • ELECTRICAL SYSTEM TROUBLESHOOTING - PREPARATION
  • PROCEDURE FOR TESTING AND TROUBLESHOOTING
  • SYMPTOM AND TROUBLESHOOTING NUMBERS
  • INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE
  • SOR SYSTEM
  • CONNECTORS LIST AND LAYOUT
  • CONNECTOR CONTACT IDENTIFICATION
  • BOX AND T-BRANCH ADAPTER TABLE
  • FUSE LOCATION TABLE
  • PRECAUTIONS FOR CLEANING AND REPLACING KDPF (KCSF and KDOC)
  • PREPARATION FOR TROUBLESHOOTING OF MACHINE MONITOR
  • PROCEDURES FOR CREATING HARNESS CHECKER ON MACHINE MONITOR LCD UNIT
  • FAILURE CODES TABLE
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE)2 topics
  • FAILURE CODE [2F00MA] Failure of Parking Brake Circuit
  • FAILURE CODE [2F00MB] Failure of Parking Brake Circuit
FAILURE CODE [2G42ZG] Accumulator Oil Pressure Low (Front)
FAILURE CODE [2G43ZG] Accumulator Oil Pressure Low (Rear)
FAILURE CODE [6091NX] HST Oil Filter Clogging
FAILURE CODE [7RHYKA] Fan Motor EPC Sol Output Open Circuit
FAILURE CODE [7RHYKB] Fan Motor EPC Sol Output Ground Fault
FAILURE CODE [7RHYKY] Fan Motor EPC Sol Output Hot Short Circuit
FAILURE CODE [879AKA] A/C Inner Sensor Open Circuit
FAILURE CODE [879AKB] A/C Inner Sensor Short Circuit
FAILURE CODE [879BKA] A/C Outer Sensor Open Circuit
FAILURE CODE [879BKB] A/C Outer Sensor Short Circuit
FAILURE CODE [879CKA] Ventilating Sensor Open Circuit
FAILURE CODE [879CKB] Ventilating Sensor Short Circuit
FAILURE CODE [879DKZ] Sunlight Sensor Open or Short Circuit
FAILURE CODE [879EMC] Ventilation Damper Abnormality
FAILURE CODE [879FMC] Air Mix Damper Abnormality
FAILURE CODE [989FN1] Travel Speed Overrun
FAILURE CODE [989L00] Engine Controller Lock Caution 1
FAILURE CODE [989M00] Engine Controller Lock Caution 2
FAILURE CODE [989N00] Engine Controller Lock Caution 3
FAILURE CODE [A1U0N3] Hydrocarbon Desorb Request 1
FAILURE CODE [A1U0N4] Hydrocarbon Desorb Request 2
FAILURE CODE [AB00KE] Charge Voltage Low
FAILURE CODE [AB00KY] Hot Short of Alternator R Terminal
FAILURE CODE [AQ10N3] Manual Stationary Regeneration Request (KDOC Face Plugging)
FAILURE CODE [AS00N3] Manual Stationary Regeneration Request (SCR)
FAILURE CODE [AS00R2] Warning 2 (SCR Device Abnormality)
FAILURE CODE [AS00R3] Inducement 1 (SCR Device Abnormality)
FAILURE CODE [AS00R4] Inducement 2 (SCR Device Abnormality)
FAILURE CODE [AS00R5] Inducement 3 (SCR Device Abnormality)
FAILURE CODE [AS00R6] Temporary Recovery of Inducement
FAILURE CODE [AS00ZK] AdBlue/DEF Level Low Error 5
FAILURE CODE [AS10KM] AdBlue/DEF Injector Overheat Warning
FAILURE CODE [AS10NR] AdBlue/DEF Injector High Temperature Warning
FAILURE CODE [AS10NT] AdBlue/DEF Injector Overheat Caution
FAILURE CODE [B@BAZG] Engine Oil Pressure Low
FAILURE CODE [B@BCNS] Engine Coolant Overheat
FAILURE CODE [B@BCZK] Eng Water Level Low
FAILURE CODE [B@C6NS] Brake Oil Temp. Overheat
FAILURE CODE [B@CRNS] HST Oil Temp Overheat
FAILURE CODE [CA115] Engine NE and Backup Speed Sensor Error
FAILURE CODE [CA122] Charge Air Pressure Sensor High Error
FAILURE CODE [CA123] Charge Air Pressure Sensor Low Error
FAILURE CODE [CA131] Throttle Sensor High Error
FAILURE CODE [CA132] Throttle Sensor Low Error
FAILURE CODE [CA144] Coolant Temperature Sensor High Error
FAILURE CODE [CA145] Coolant Temperature Sensor Low Error
FAILURE CODE [CA153] Charge Air Temperature Sensor High Error
FAILURE CODE [CA154] Charge Air Temperature Sensor Low Error
FAILURE CODE [CA187] Sensor 2 Supply Voltage Low Error
FAILURE CODE [CA221] Ambient Pressure Sensor High Error
FAILURE CODE [CA222] Ambient Pressure Sensor Low Error
FAILURE CODE [CA227] Sensor 2 Supply Voltage High Error
FAILURE CODE [CA234] Engine Overspeed
FAILURE CODE [CA238] NE Speed Sensor Supply Voltage Error
FAILURE CODE [CA239] NE Speed Sensor Supply Voltage High Error
FAILURE CODE [CA249] Ambient Air Temp Sensor High Error
FAILURE CODE [CA256] Ambient Air Temp Sensor Low Error
FAILURE CODE [CA271] PCV 1 Short Circuit Error58 topics
  • FAILURE CODE [CA272] PCV 1 Open Circuit Error
  • FAILURE CODE [CA322] Injector #1 (L#1) Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA323] Injector #5 (L#5) Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA324] Injector #3 (L#3) Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA325] Injector #6 (L#6) Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA331] Injector #2 (L#2) Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA332] Injector #4 (L#4) Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA343] Engine Controller Internal Abnormality
  • FAILURE CODE [CA351] Injectors Drive Circuit Error
  • FAILURE CODE [CA352] Sensor 1 Supply Voltage Low Error
  • FAILURE CODE [CA356] MAF Sensor High Error
  • FAILURE CODE [CA357] MAF Sensor Low Error
  • FAILURE CODE [CA386] Sensor 1 Supply Voltage High Error
  • FAILURE CODE [CA428] Water in Fuel Sensor High Error
  • FAILURE CODE [CA429] Water in Fuel Sensor Low Error
  • FAILURE CODE [CA431] Idle Validation Sw Error
  • FAILURE CODE [CA432] Idle Validation Process Error
  • FAILURE CODE [CA435] Engine Oil Pressure SW Error
  • FAILURE CODE [CA441] Power Voltage Low Error
  • FAILURE CODE [CA442] Power Voltage High Error
  • FAILURE CODE [CA449] Common Rail Pressure High Error 2
  • FAILURE CODE [CA451] Common Rail Pressure Sensor High Error
  • FAILURE CODE [CA452] Common Rail Pressure Sensor Low Error
  • FAILURE CODE [CA488] Charge Air Temperature High Torque Derate
  • FAILURE CODE [CA515] Common Rail Pressure Sensor Supply Voltage High Error
  • FAILURE CODE [CA516] Common Rail Pressure Sensor Supply Voltage Low Error
  • FAILURE CODE [CA553] Common Rail Pressure High Error 1
  • FAILURE CODE [CA555] Crankcase Pressure High Error 1
  • FAILURE CODE [CA556] Crankcase Pressure High Error 2
  • FAILURE CODE [CA559] Common Rail Pressure Low Error 1
  • FAILURE CODE [CA595] Turbocharger Speed High Error 2
  • FAILURE CODE [CA687] Turbocharger Speed Low Error
  • FAILURE CODE [CA689] Engine NE Speed Sensor Error
  • FAILURE CODE [CA691] Intake Air Temperature Sensor High Error
  • FAILURE CODE [CA692] Intake Air Temperature Sensor Low Error
  • FAILURE CODE [CA697] Engine Controller Internal Temperature Sensor High Error
  • FAILURE CODE [CA698] Engine Controller Internal Temperature Sensor Low Error
  • FAILURE CODE [CA731] Engine Backup Speed Sensor Phase Error
  • FAILURE CODE [CA778] Engine Backup Speed Sensor Error
  • FAILURE CODE [CA1117] Engine Controller Partial Data Lost Error
  • FAILURE CODE [CA1664] KDOC Abnormality
  • FAILURE CODE [CA1669] AdBlue/DEF Level Sensor Voltage High Error
  • FAILURE CODE [CA1673] AdBlue/DEF Level Low Error 3
  • FAILURE CODE [CA1677] AdBlue/DEF Temperature Sensor Low Error
  • FAILURE CODE [CA1678] AdBlue/DEF Temperature Sensor High Error
  • FAILURE CODE [CA1682] AdBlue/DEF Pump Priming Error
  • FAILURE CODE [CA1683] AdBlue/DEF Tank Heating Valve Voltage High Error
  • FAILURE CODE [CA1684] AdBlue/DEF Tank Heating Valve Voltage Low Error
  • FAILURE CODE [CA1686] AdBlue/DEF Quality Sensor Voltage High Error
  • FAILURE CODE [CA1691] Defective Regeneration
  • FAILURE CODE [CA1694] SCR Outlet NOx Sensor In Range Error
  • FAILURE CODE [CA1695] Sensor 5 Supply Voltage High Error
  • FAILURE CODE [CA1696] Sensor 5 Supply Voltage Low Error
  • FAILURE CODE [CA1712] AdBlue/DEF Tank Thawing Error
  • FAILURE CODE [CA1713] AdBlue/DEF Tank Heater Valve Open Stuck Error
  • FAILURE CODE [CA1714] AdBlue/DEF Quality Sensor Out of Calibration Error
  • FAILURE CODE [CA1715] AdBlue/DEF Quality Sensor Internal Circuit Error
  • FAILURE CODE [CA1776] Sensor Supply Relay Voltage High Error
FAILURE CODE [CA1777] Sensor Supply Relay Voltage Low Error
FAILURE CODE [CA1843] Crankcase Pressure Sensor High Error
FAILURE CODE [CA1844] Crankcase Pressure Sensor Low Error
FAILURE CODE [CA1879] KDPF Differential Pressure Sensor High Error
FAILURE CODE [CA1881] KDPF Differential Pressure Sensor Low Error
FAILURE CODE [CA1883] KDPF Differential Pressure Sensor In Range Error
FAILURE CODE [CA1885] Turbo Outlet NOx Sensor Circuit Error
FAILURE CODE [CA1887] SCR Outlet NOx Sensor Circuit Error
FAILURE CODE [CA1921] KDPF Soot Accumulation High Error 1
FAILURE CODE [CA1922] KDPF Soot Accumulation High Error 2
FAILURE CODE [CA1942] Crankcase Pressure Sensor In Range Error
FAILURE CODE [CA1993] KDPF Differential Pressure Low Error
FAILURE CODE [CA2185] Throttle Sensor Supply Voltage High Error
FAILURE CODE [CA2186] Throttle Sensor Supply Voltage Low Error
FAILURE CODE [CA2249] Common Rail Pressure Low Error 2
FAILURE CODE [CA2271] EGR Valve Position Sensor High Error
FAILURE CODE [CA2272] EGR Valve Position Sensor Low Error
FAILURE CODE [CA2288] Turbocharger Speed High Error 1
FAILURE CODE [CA2311] lMV Solenoid Error
FAILURE CODE [CA2349] EGR Valve Solenoid Open Circuit Error
FAILURE CODE [CA2353] EGR Valve Solenoid Short Circuit Error
FAILURE CODE [CA2357] EGR Valve Servo Error
FAILURE CODE [CA2381] KVGT Position Sensor High Error
FAILURE CODE [CA2382] KVGT Position Sensor Low Error
FAILURE CODE [CA2383] KVGT Solenoid Open Circuit Error
FAILURE CODE [CA2386] KVGT Solenoid Short Circuit Error
FAILURE CODE [CA2387] KVGT Servo Error
FAILURE CODE [CA2555] Intake Air Heater Relay Open Circuit Error
FAILURE CODE [CA2556] Intake Air Heater Relay Short Circuit Error
FAILURE CODE [CA2637] KDOC Face Plugging
FAILURE CODE [CA2639] Manual Stationary Regeneration Request
FAILURE CODE [CA2771] SCR Outlet NOx Sensor Datalink Timeout Error
FAILURE CODE [CA2976] AdBlue/DEF Pump Temperature Sensor Signal Error
FAILURE CODE [CA3133] KDPF Outlet Pressure Sensor High Error
FAILURE CODE [CA3134] KDPF Outlet Pressure Sensor Low Error
FAILURE CODE [CA3135] KDPF Outlet Pressure Sensor In Range Error
FAILURE CODE [CA3142] SCR Temperature Sensor High Error
FAILURE CODE [CA3143] SCR Temperature Sensor Low Error
FAILURE CODE [CA3144] SCR Temperature Sensor In Range Error
FAILURE CODE [CA3146] SCR Outlet Temperature Sensor High Error
FAILURE CODE [CA3147] SCR Outlet Temperature Sensor Low Error
FAILURE CODE [CA3148] SCR Outlet Temperature Sensor In Range Error
FAILURE CODE [CA3151] SCR Catalyst Efficiency Low Error 2
FAILURE CODE [CA3165] SCR Outlet Temperature High Error
FAILURE CODE [CA3229] SCR Temperature High Error
FAILURE CODE [CA3231] SCR Temperature High Error - Non Regeneration
FAILURE CODE [CA3232] Turbo Outlet NOx Sensor Datalink Timeout Error
FAILURE CODE [CA3235] SCR Outlet Temperature High Error - Non Regeneration
FAILURE CODE [CA3239] AdBlue/DEF Line Heater 2 Voltage High Error
FAILURE CODE [CA3241] AdBlue/DEF Line Heater 2 Voltage Low Error
FAILURE CODE [CA3242] AdBlue/DEF Tank Heating Error
FAILURE CODE [CA3251] KDOC Inlet Temperature High Error
FAILURE CODE [CA3253] KDOC Temperature Error - Non Regeneration
FAILURE CODE [CA3254] KDOC Outlet Temperature High Error 1
FAILURE CODE [CA3255] KDPF Temperature Error - Non Regeneration
FAILURE CODE [CA3256] KDPF Outlet Temperature High Error 158 topics
  • FAILURE CODE [CA3311] KDOC Outlet Temperature High Error 2
  • FAILURE CODE [CA3312] KDPF Outlet Temperature High Error 2
  • FAILURE CODE [CA3313] KDOC Inlet Temperature Sensor Low Error
  • FAILURE CODE [CA3314] KDOC Inlet Temperature Sensor High Error
  • FAILURE CODE [CA3315] KDOC Inlet Temperature Sensor In Range Error
  • FAILURE CODE [CA3316] KDOC Outlet Temperature Sensor Low Error
  • FAILURE CODE [CA3317] KDOC Outlet Temperature Sensor High Error
  • FAILURE CODE [CA3318] KDOC Outlet Temperature Sensor In Range Error
  • FAILURE CODE [CA3319] KDPF Outlet Temperature Sensor High Error
  • FAILURE CODE [CA3321] KDPF Outlet Temperature Sensor Low Error
  • FAILURE CODE [CA3322] KDPF Outlet Temperature Sensor In Range Error
  • FAILURE CODE [CA3419] MAF Sensor Supply Voltage High Error
  • FAILURE CODE [CA3421] MAF Sensor Supply Voltage Low Error
  • FAILURE CODE [CA3497] AdBlue/DEF Level Low Error 1
  • FAILURE CODE [CA3498] AdBlue/DEF Level Low Error 2
  • FAILURE CODE [CA3543] AdBlue/DEF Quality Error (SCR Catalyst Efficiency Low)
  • FAILURE CODE [CA3545] SCR Outlet NOx Sensor Unstable Error
  • FAILURE CODE [CA3547] AdBlue/DEF Level Low Error 4
  • FAILURE CODE [CA3558] AdBlue/DEF Pump Voltage High Error
  • FAILURE CODE [CA3559] AdBlue/DEF Pump Voltage Low Error
  • FAILURE CODE [CA3562] AdBlue/DEF LineHeater Relay 1 Voltage High Error
  • FAILURE CODE [CA3563] AdBlue/DEF LineHeater Relay 1 Voltage Low Error
  • FAILURE CODE [CA3567] AdBlue/DEF Injector Open Circuit Error or Short Circuit Error
  • FAILURE CODE [CA3568] AdBlue/DEF Injector Malfunction
  • FAILURE CODE [CA3571] AdBlue/DEF Pump Pressure Sensor High Error
  • FAILURE CODE [CA3572] AdBlue/DEF Pump Pressure Sensor Low Error
  • FAILURE CODE [CA3574] AdBlue/DEF Pump Pressure Too Low Error
  • FAILURE CODE [CA3575] AdBlue/DEF Pump Pressure Too High Error
  • FAILURE CODE [CA3577] AdBlue/DEF FCV Voltage High Error
  • FAILURE CODE [CA3578] AdBlue/DEF FCV Voltage Low Error
  • FAILURE CODE [CA3582] SCR Catalyst Efficiency Low Error 1
  • FAILURE CODE [CA3583] SCR Outlet NOx Sensor Heater Warming up Error
  • FAILURE CODE [CA3596] AdBlue/DEF Pump Pressure Unstable Error
  • FAILURE CODE [CA3649] Turbo Outlet NOx Sensor Heater Warming up Error
  • FAILURE CODE [CA3681] SCR Outlet NOx Sensor Power Voltage Error
  • FAILURE CODE [CA3682] Turbo Outlet NOx Sensor Power Voltage Error
  • FAILURE CODE [CA3713] AdBlue/DEF Line Heater 1 Voltage High Error
  • FAILURE CODE [CA3717] SCR Outlet NOx Sensor Voltage Mismatch Error
  • FAILURE CODE [CA3718] Turbo Outlet NOx Sensor Voltage Mismatch Error
  • FAILURE CODE [CA3725] Turbo Outlet NOx Sensor Unstable Error
  • FAILURE CODE [CA3741] Common Rail Pressure Valve Trip Error
  • FAILURE CODE [CA3748] Turbo Outlet NOx Sensor Stuck In Range Error
  • FAILURE CODE [CA3751] SCR Catalyst Degradation Error
  • FAILURE CODE [CA3755] AdBlue/DEF Dosing Performance Degradation Error
  • FAILURE CODE [CA3866] AdBlue/DEF Low Concentration Error 2
  • FAILURE CODE [CA3867] AdBlue/DEF Low Concentration Error 1
  • FAILURE CODE [CA3868] AdBlue/DEF Tank Sensor Datalink Timeout Error
  • FAILURE CODE [CA3899] SCR NH3 Sensor Circuit Error
  • FAILURE CODE [CA3911] SCR NH3 Sensor Datalink Timeout Error
  • FAILURE CODE [CA3912] SCR NH3 Sensor Heater Warming up Error
  • FAILURE CODE [CA3932] SCR NH3 Sensor Heater Voltage High Error
  • FAILURE CODE [CA3933] SCR NH3 Sensor Heater Voltage Low Error
  • FAILURE CODE [CA3934] SCR NH3 Sensor Power Interrupt Error
  • FAILURE CODE [CA3935] SCR NH3 Sensor Trim Resistance Error
  • FAILURE CODE [CA3936] SCR NH3 Sensor Internal Circuit Error
  • FAILURE CODE [CA4151] KDOC and KDPF Temperature Sensor Datalink Timeout Error
  • FAILURE CODE [CA4152] SCR Temperature Sensor Datalink Timeout Error
  • FAILURE CODE [CA4155] AdBlue/DEF Pump Heater Relay Voltage High Error
FAILURE CODE [CA4156] AdBlue/DEF Pump Heater Relay Voltage Low Error
FAILURE CODE [CA4157] AdBlue/DEF FCV Malfunction
FAILURE CODE [CA4158] KDOC and KDPF Temperature Sensor Internal Circuit Error
FAILURE CODE [CA4159] SCR Temperature Sensor Internal Circuit Error
FAILURE CODE [CA4161] KDOC and KDPF Temperature Sensor ECU Voltage High Error
FAILURE CODE [CA4162] KDOC and KDPF Temperature Sensor ECU Voltage Low Error
FAILURE CODE [CA4164] SCR Temperature Sensor ECU Voltage High Error
FAILURE CODE [CA4165] SCR Temperature Sensor ECU Voltage Low Error
FAILURE CODE [CA4166] SCR Temperature Sensor ECU High Temperature Error
FAILURE CODE [CA4168] AdBlue/DEF Pump Heater ON Stuck Error
FAILURE CODE [CA4169] AdBlue/DEF Pump Heater OFF Stuck Error
FAILURE CODE [CA4171] AdBlue/DEF Pump Thawing Error
FAILURE CODE [CA4249] AdBlue/DEF Pump Temperature Sensor 1 In Range Error
FAILURE CODE [CA4251] AdBlue/DEF Pump Temperature Sensor 2 In Range Error
FAILURE CODE [CA4259] KDOC and KDPF Temperature Sensor Power Interrupt Error
FAILURE CODE [CA4261] SCR Temperature Sensor Power Interrupt Error
FAILURE CODE [CA4277] AdBlue/DEF Quality Sensor Liquid Distinction Impossible Error
FAILURE CODE [CA4281] SCR NH3 Sensor Stuck Response Error
FAILURE CODE [CA4459] AdBlue/DEF LineHeater Relay 2 Voltage High Error
FAILURE CODE [CA4461] AdBlue/DEF LineHeater Relay 2 Voltage Low Error
FAILURE CODE [CA4658] AdBlue/DEF Flow Low Error
FAILURE CODE [CA4731] AdBlue/DEF Temperature Sensor Transmission Data Error
FAILURE CODE [CA4732] AdBlue/DEF Level Sensor Transmission Data Error
FAILURE CODE [CA4739] AdBlue/DEF Level Sensor Internal Circuit Error
FAILURE CODE [CA4768] Fuel in AdBlue/DEF Tank Error
FAILURE CODE [CA4769] AdBlue/DEF Level Measurement Impossible
FAILURE CODE [CA4842] AdBlue/DEF High Concentration Error
FAILURE CODE [CA4952] System Operating Lamp Short Circuit (Engine Controller)
FAILURE CODE [CA5115] AdBlue/DEF Line Heater 1 Voltage Low Error
FAILURE CODE [CA5179] Engine Room Temperature Sensor High Error
FAILURE CODE [CA5181] Engine Room Temperature Sensor Low Error
FAILURE CODE [CA5383] Ash Accumulation High Error
FAILURE CODE [D110L4] Battery Relay Signal Open Circuit
FAILURE CODE [D160KA] Disconnection of Backup Lamp Relay Output
FAILURE CODE [D160KY] Hot Short of Backup Lamp Relay Output
FAILURE CODE [D191KA] Disconnection of Neutral Output Relay
FAILURE CODE [D191KB] Ground Fault of Neutral Output Relay
FAILURE CODE [D191KY] Hot Short of Neutral Output Relay
FAILURE CODE [D192KA] Disconnection of ECSS Solenoid
FAILURE CODE [D192KB] Ground Fault of ECSS Solenoid
FAILURE CODE [D192KY] Hot Short of ECSS Solenoid
FAILURE CODE [D19JKZ] Personal Code Relay Abnormality
FAILURE CODE [D1B0KA] HST Safety Relay Open Circuit
FAILURE CODE [D1B0KB] HST Safety Relay Ground Fault
FAILURE CODE [D1B0KY] HST Safety Relay Hot Short Circuit
FAILURE CODE [D1B0MC] HST Safety Relay Malfunction
FAILURE CODE [D1E6KA] Disconnection of Parking Brake Relay
FAILURE CODE [D1E6KB] Ground Fault of Parking Brake Relay
FAILURE CODE [D1E6KY] Hot Short of Parking Brake Relay
FAILURE CODE [D5ZHKA] Failure of Key SW C Signal
FAILURE CODE [D5ZHKB] Key SW C Signal Short Circuit
FAILURE CODE [D5ZHL6] Disconnection of Key SW C
FAILURE CODE [D811MC] KOMTRAX Error
FAILURE CODE [D862KA] GPS Antenna Open Circuit
FAILURE CODE [D8ALKA] Operating Lamp Open Circuit(KOMTRAX)
FAILURE CODE [D8ALKB] Operating Lamp Short Circuit(KOMTRAX)
FAILURE CODE [D8AQK4] CAN2 Discon (KOMTRAX) 258 topics
  • FAILURE CODE [D8AQKR] CAN2 Discon (KOMTRAX)
  • FAILURE CODE [DAF0KT] Abnormality of Non-volatile Memory (MON)
  • FAILURE CODE [DAF0MB] Monitor ROM Abnormality
  • FAILURE CODE [DAF0MC] Monitor Error
  • FAILURE CODE [DAF3KK] Controller Power Source Low (MON)
  • FAILURE CODE [DAF8KB] Camera Power Supply Short Circuit
  • FAILURE CODE [DAFDKB] Monitor 12V Power Output Short Circuit
  • FAILURE CODE [DAFGMC] GPS Module Error
  • FAILURE CODE [DAFLKA] Operating Lamp Open Circuit(MON)
  • FAILURE CODE [DAFLKB] Operating Lamp Short Circuit(MON)
  • FAILURE CODE [DAFQKR] CAN2 Discon (Monitor)
  • FAILURE CODE [DAJ0KK] Controller Power Voltage Low Error (HST)
  • FAILURE CODE [DAJ0KT] Controller Non-volatile Memory Error (HST)
  • FAILURE CODE [DAJ0MC] HST Controller Malfunction
  • FAILURE CODE [DAJ1KA] Key SW ACC Signal Open Circuit (HST)
  • FAILURE CODE [DAJ2KK] Solenoid Power Voltage Low Error (HST)
  • FAILURE CODE [DAJ4KB] Self-holding Relay Ground Fault (HST)
  • FAILURE CODE [DAJ4KZ] Self-holding Relay Open or Hot Short (HST)
  • FAILURE CODE [DAJ5KX] 5V Sensor 0 Power Voltage Failure (HST)
  • FAILURE CODE [DAJ6KX] 5V Sensor 1 Power Voltage Failure (HST)
  • FAILURE CODE [DAJ9KQ] Model Selection Signal Mismatch (HST)
  • FAILURE CODE [DAJLKA] Operating Lamp Output Open Circuit (HST)
  • FAILURE CODE [DAJLKB] Operating Lamp Output Short Circuit (HST)
  • FAILURE CODE [DAJQKR] CAN2 Discon (HST Con)
  • FAILURE CODE [DAJRKR] CAN1 Discon (HST Con)
  • FAILURE CODE [DAJRMA] Option Selection Mismatch (HST)
  • FAILURE CODE [DAZ9KQ] A/C Model Selection Abnormality
  • FAILURE CODE [DAZQKR] CAN2 Discon (Aircon ECU)
  • FAILURE CODE [DB2QKR] CAN2 Discon (Engine Con)
  • FAILURE CODE [DB2RKR] CAN1 Discon (Engine Con)
  • FAILURE CODE [DD1ALD] Ground Fault of Remote Positioner Set SW
  • FAILURE CODE [DDAAL6] Discon of Engine Shutdown Secondary Switch
  • FAILURE CODE [DDB2L4] Stop Lamp Switch Signal Mismatch
  • FAILURE CODE [DDB6L4] Parking Brake Signal Mismatch
  • FAILURE CODE [DDD7KA] Speed Adjust Dial Potentio Open or Ground
  • FAILURE CODE [DDD7KY] Speed Adjust Dial Potentio Hot Short
  • FAILURE CODE [DDK3KA] FNR SW Input Signal Disconnection
  • FAILURE CODE [DDK3KB] FNR SW Input Signal Short Circuit
  • FAILURE CODE [DDK6KA] FNR Lever Input Signal Disconnection
  • FAILURE CODE [DDK6KB] FNR Lever Input Signal Short Circuit
  • FAILURE CODE [DDNRLD] Work Equipment Lock Switch Ground Fault
  • FAILURE CODE [DF10KA] No Signal of Speed Range Input
  • FAILURE CODE [DF10KB] Plural Signals of Speed Range Input
  • FAILURE CODE [DGH1KX] HST Oil Temp Sensor Out of Range
  • FAILURE CODE [DGR2KB] Ground Fault of Brake Oil Temp. Sensor
  • FAILURE CODE [DGR2KZ] Failure of Brake Oil Temp. Sensor
  • FAILURE CODE [DHHBKA] HST Pressure Sensor Open or Ground (MA)
  • FAILURE CODE [DHHBKY] HST Pressure Sensor Hot Short (MA)
  • FAILURE CODE [DHHCKA] HST Pressure Sensor Open or Ground (MB)
  • FAILURE CODE [DHHCKY] HST Pressure Sensor Hot Short (MB)
  • FAILURE CODE [DHPCKA] Boom Press Sensor Open or Ground (Bottom)
  • FAILURE CODE [DHPCKY] Boom Press Sensor Hot Short (Bottom)
  • FAILURE CODE [DHPEKA] S/T & Loader Pump Press Sen Open or Ground
  • FAILURE CODE [DHPEKY] S/T & Loader Pump Press Sensor Hot Short
  • FAILURE CODE [DHS8KA] Boom Raise PPC Sensor Open or Ground
  • FAILURE CODE [DHS8KY] Boom Raise PPC Sensor Hot Short
  • FAILURE CODE [DHS9KA] Boom Lower PPC Sensor Open or Ground
  • FAILURE CODE [DHS9KY] Boom Lower PPC Sensor Hot Short
FAILURE CODE [DHSDKA] Bucket Dump PPC Sensor Open or Ground
FAILURE CODE [DHSDKY] Bucket Dump PPC Sensor Hot Short
FAILURE CODE [DHSNKA] Bucket Tilt PPC Sensor Open or Ground
FAILURE CODE [DHSNKY] Bucket Tilt PPC Sensor Hot Short
FAILURE CODE [DHT8ZG] Steering Oil Pressure Low
FAILURE CODE [DHTCL6] Failure of HST Oil Filter Sensor Circuit
FAILURE CODE [DJF1KA] Disconnection of Fuel Level Sensor
FAILURE CODE [DK55KA] Failure of FNR Lever Potentio
FAILURE CODE [DK55KY] Hot Short of FNR Lever Potentio Circuit
FAILURE CODE [DK55L5] Failure of FNR Lever Potentio
FAILURE CODE [DK5DKA] Failure of 3rd Lever Potentio (Main)
FAILURE CODE [DK5DKY] Hot Short of 3rd Lever Potentio (Main)
FAILURE CODE [DK5DL8] 3rd Lever Potentio (Main & Sub) Disagree
FAILURE CODE [DK5EKA] Failure of 3rd Lever Potentio (Sub)
FAILURE CODE [DK5EKY] Hot Short of 3rd Lever Potentio (Sub)
FAILURE CODE [DK70KA] Inching Sensor Open or Ground
FAILURE CODE [DK70KY] Inching Sensor Hot Short Circuit
FAILURE CODE [DKA0KA] Failure of Boom Angle Sensor
FAILURE CODE [DKA0KY] Hot Short of Boom Angle Sensor Circuit
FAILURE CODE [DKA0L0] Boom Angle Sensor Dislocation
FAILURE CODE [DLM3KA] Disconnection of Radiator Fan Speed Sensor
FAILURE CODE [DLM3LC] Failure of Radiator Fan Speed Sensor
FAILURE CODE [DLT3KX] Speed Sens Open or Ground or Hot Short (B)
FAILURE CODE [DLT4KX] Speed Sens Open or Ground or Hot Short (A)
FAILURE CODE [DLT4L0] Travel Speed Sensor Failure
FAILURE CODE [DLT4LC] Speed Sens Open or Ground or Hot (A or B)
FAILURE CODE [DPQ1KR] LIN Discon (Switch Panel)
FAILURE CODE [DPQ2KR] LIN Discon (LED Unit)
FAILURE CODE [DPQ3KR] LIN Discon (Rear View Monitor)
FAILURE CODE [DSJ0KR] CAN2 Discon (Meter Unit)
FAILURE CODE [DT22KB] Ground Fault of Work Equip. Lock Indic
FAILURE CODE [DV00KB] Ground Fault of Buzzer Output
FAILURE CODE [DW26KA] Motor 2 Solenoid Open Circuit
FAILURE CODE [DW26KB] Motor 2 Solenoid Ground Fault
FAILURE CODE [DW26KY] Motor 2 Solenoid Hot Short Circuit
FAILURE CODE [DW4BKA] Parking Brake Valve Output Open Circuit
FAILURE CODE [DW4BKB] Parking Brake Valve Output Ground Fault
FAILURE CODE [DW4BKY] Parking Brake Valve Output Hot Short
FAILURE CODE [DW4RKA] Disconnection of Bucket EPC Sol. (Tilt)
FAILURE CODE [DW4RKB] Ground Fault of Bucket EPC Solenoid (Tilt)
FAILURE CODE [DW4RKY] Hot Short of Bucket EPC Solenoid (Tilt)
FAILURE CODE [DWM1KA] Disconnection of Neutral Lock Solenoid
FAILURE CODE [DWM1KB] Ground Fault of Neutral Lock Solenoid
FAILURE CODE [DWM1KY] Hot Short of Neutral Lock Solenoid
FAILURE CODE [DWN6KA] Disconnection of Detent Solenoid (Boom)
FAILURE CODE [DWN6KB] Ground Fault of Detent Solenoid (Boom)
FAILURE CODE [DWN6KY] Hot Short of Detent Solenoid (Boom)
FAILURE CODE [DWN8KA] Hot Short of Parking Brake Relay
FAILURE CODE [DWN8KB] Ground Fault of Detent Solenoid (Bucket)
FAILURE CODE [DWN8KY] Hot Short of Detent Solenoid (Bucket)
FAILURE CODE [DX19KA] Motor 1 Solenoid Open Circuit
FAILURE CODE [DX19KB] Motor 1 Solenoid Ground Fault
FAILURE CODE [DX19KY] Motor 1 Solenoid Hot Short Circuit
FAILURE CODE [DX20KA] Clutch EPC Solenoid Open Circuit
FAILURE CODE [DX20KB] Clutch EPC Solenoid Ground Fault
FAILURE CODE [DX20KY] Clutch EPC Solenoid Hot Short Circuit
FAILURE CODE [DXAWKA] HST Pump EPC Solenoid Open Circuit
FAILURE CODE [DXAWKB] HST Pump EPC Solenoid Ground Fault19 topics
  • FAILURE CODE [DXAWKY] HST Pump EPC Solenoid Hot Short Circuit
  • FAILURE CODE [DXH7KA] Reverse Solenoid Open Circuit
  • FAILURE CODE [DXH7KB] Reverse Solenoid Ground Fault
  • FAILURE CODE [DXH7KY] Reverse Solenoid Hot Short Circuit
  • FAILURE CODE [DXH8KA] Forward Solenoid Open Circuit
  • FAILURE CODE [DXH8KB] Forward Solenoid Ground Fault
  • FAILURE CODE [DXH8KY] Forward Solenoid Hot Short Circuit
  • FAILURE CODE [DXHJKA] Disconnection of 3rd EPC Solenoid (EXT)
  • FAILURE CODE [DXHJKB] Ground Fault of 3rd EPC Solenoid (EXT)
  • FAILURE CODE [DXHJKY] Hot Short of 3rd EPC Solenoid (EXT)
  • FAILURE CODE [DXHKKA] Disconnection of 3rd EPC Solenoid (RET)
  • FAILURE CODE [DXHKKB] Ground Fault of 3rd EPC Solenoid (RET)
  • FAILURE CODE [DXHKKY] Hot Short of 3rd EPC Solenoid (RET)
  • FAILURE CODE [H2K0KA] Failure of Quick Coupler Lock Signal
  • FAILURE CODE [H2K0KY] Hot Short of Quick Coupler Lock Signal
  • FAILURE CODE [J141N1] Steering Pump Overrun
  • FAILURE CODE [LA00L3] Failure of Fan Reverse
  • FAILURE CODE [M100N1] HST Pump Overrun
  • FAILURE CODE [M400N1] HST Motor 1 Overrun
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)27 topics
  • ENGINE DOES NOT START (ENGINE DOES NOT CRANK)
  • MANUAL PREHEATING SYSTEM DOES NOT WORK
  • AUTOMATIC PREHEATING SYSTEM DOES NOT WORK
  • WHILE PREHEATING IS WORKING, PREHEATING MONITOR DOES NOT LIGHT UP
  • LCD UNIT ON MACHINE MONITOR DISPLAYS NOTHING
  • OR FLICKERS)
  • LCD ON MACHINE MONITOR DOES NOT DISPLAY PROPERLY
  • METER UNIT DISPLAY ON MACHINE MONITOR IS ABNORMAL
  • NIGHT LIGHTING LAMP OF METER UNIT ON MACHINE MONITOR IS ABNORMAL
  • LED UNIT LAMP ON MACHINE MONITOR IS ABNORMAL
  • SWITCH DOES NOT OPERATE PROPERLY
  • TION
  • SWITCH PANEL BUZZER OF MACHINE MONITOR IS ABNORMAL
  • PLAYED PROPERLY
  • REARVIEW MONITOR DOES NOT LIGHT UP OR BACKLIGHT FLICKERS
  • REARVIEW MONITOR IMAGES ARE NOT DISPLAYED CLEARLY
  • REARVIEW MONITOR BRIGHTNESS CANNOT BE ADJUSTED
  • NIGHT LIGHTING LAMP OF REARVIEW MONITOR IS ABNORMAL
  • RADIATOR COOLANT LEVEL CAUTION LAMP DOES NOT LIGHT UP
  • TO ON (PARKING) POSITION
  • SURE CAUTION LAMP DOES NOT LIGHT UP
  • CAUTION LAMP DOES NOT LIGHT UP
  • PERATURE CAUTION LAMP DOES NOT LIGHT UP
  • WHILE THE PEDAL HAS NOT BEEN DEPRESSED, INCHING FUNCTION OPERATES
  • FUEL LEVEL GAUGE DOES NOT INDICATE CORRECT LEVEL
  • SEAT BELT CAUTION LAMP INDICATION IS ABNORMAL
  • ALARM BUZZER DOES NOT SOUND
ALARM BUZZER DOES NOT STOP SOUNDING
THE REMOTE POSITIONER DOES NOT WORK OR CANNOT BE RELEASED
THE BUCKET POSITIONER DOES NOT WORK OR CANNOT BE RELEASED1 topic
  • TRAVELING WHEN PARKING BRAKE IS RELEASED
PZ AUTO TILT-IN DOES NOT WORK
ECSS FUNCTION CANNOT BE SELECTED OR CANNOT BE RELEASED
HORN DOES NOT SOUND
HORN DOES NOT STOP SOUNDING
NONE OF HEADLAMP, CLEARANCE LAMP, AND TAIL LAMP LIGHTS
CLEARANCE LAMP AND TAIL LAMP DO NOT LIGHT UP OR GO OUT
BOTH HIGH AND LOW BEAMS OF HEADLAMP DO NOT LIGHT UP OR GO OUT1 topic
  • PEAN UNION)
LOW BEAM OF HEADLAMP DOES NOT LIGHT UP OR GO OUT
HIGH BEAM OF HEADLAMP DOES NOT LIGHT UP OR GO OUT
FRONT WORKING LAMP DOES NOT LIGHT UP OR GO OUT
REAR WORKING LAMP DOES NOT LIGHT UP OR GO OUT
TURN SIGNAL LAMPS DO NOT LIGHT UP OR GO OUT
TURN SIGNAL LAMPS DO NOT LIGHT UP OR GO OUT (FOR EUROPEAN UNION)
HAZARD LAMP DOES NOT LIGHT UP OR GO OUT
HAZARD LAMP DOES NOT LIGHT UP OR GO OUT (FOR EUROPEAN UNION)
BRAKE LAMP DOES NOT LIGHT OR STAYS LIGHTED
BRAKE LAMP DOES NOT LIGHT OR STAYS LIGHTED (FOR EUROPEAN UNION)
BACKUP LAMP DOES NOT LIGHT UP OR DOES NOT GO OUT
BACKUP BUZZER DOES NOT SOUND OR CONTINUES TO SOUND
FRONT WIPER DOES NOT OPERATE
REAR WIPER DOES NOT OPERATE
WINDOW WASHER DOES NOT OPERATE
KOMTRAX SYSTEM DOES NOT OPERATE NORMALLY
IS DISPLAYED ON THE SCREEN OF AUTO-GREASING PUMP
AUTO-GREASING SYSTEM DOES NOT OPERATE OR STOP
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (H MODE)
FAILURE MODE AND CAUSE TABLE
MACHINE CAN TRAVEL NEITHER FORWARD NOR REVERSE10 topics
  • NORMALLY)
  • ENGINE SPEED DROPS LARGELY OR ENGINE STOPS
  • MACHINE DOES NOT TURN
  • STEERING WHEEL IS HEAVY TO OPERATE
  • MACHINE SWAYS OR LARGE SHOCKS ARE MADE WHILE MACHINE TURNS
  • MACHINE UNINTENTIONALLY TURNS TO ONE SIDE WHEN MACHINE TRAVELS
  • WHEEL BRAKES DO NOT WORK OR ARE WEAK
  • WHEEL BRAKES ARE NOT RELEASED OR DRAG
  • PARKING BRAKE DOES NOT WORK OR IT IS WEAK
  • PARKING BRAKE IS NOT RELEASED OR DRAGS

Inside this manual

Real pages from this service manual (3,217 pages). Open the sample pages (PDF, 1022 KB)

Sample pages from the Komatsu WA270-8 with 6D107E-3 Engine Wheel Loader Service Manual: Specifications, Diagram, Troubleshooting, Color page, Color page, Foldout diagram
  • Specifications, page 719: Items available for Option Selection function
  • Diagram, page 1,013: Circuit diagram related to evaporator temperature sensor electrical circuit
  • Troubleshooting, page 1,209: FAILURE CODE [CA1881] KDPF Differential Pressure Sensor Low Error
  • Color page, page 145: A: From AdBlue/DEF mixing tube
  • Color page, page 455: UNDERCARRIAGE AND FRAME
  • Foldout diagram, page 3,185: ELECTRICAL CIRCUIT DIAGRAM OF FLOOR (1/9)

This is a service manual

Here's how it compares to the other manual types.

This manual

Service manual

Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.

Operator's manual

Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.

Parts manual

Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.

Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.

What it's used for

Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.

Service shops and owner/operators who repair their own equipment

Identifying correct parts and seeing how assemblies come apart and go back together

Keeping equipment running with less downtime

Factory manual, 3,217 pages

Quantity one is the manual described above.

Fast free USA shipping

Ships in 1 business day.

60-day returns

Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy

Binder not included

Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.

Other editions and similar models

Komatsu WA270-8Operation & Maintenance Manual · CEAM031701 · $69.95Komatsu WA270-8Operation & Maintenance Manual · TEN00744-01 · $69.75Komatsu D61EXi-24, D61PXi-24 with 6D107E-3 EngineService Manual · KEBM657800 · $299.61Komatsu PC210LC-11 with 6D107E-3 EngineService Manual · CEBM029400 · $259.83Komatsu PC240LC-11 with 6D107E-3 EngineService Manual · CEBM028602 · $259.85Komatsu PC290LC-11 with 6D107E-3 EngineService Manual · CEBM028803 · $259.87Komatsu WA270-8Service Manual · SEN06600-04 · $329.57Komatsu WA320-8 with 6D107E-3 EngineService Manual · CEBM031202 · $329.67

Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).