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Komatsu D51EX-24, D51PX-24 with 4D107E-3 Engine Crawler Dozer Service Manual

2,685 pages · Publication KEBM661702

$269.67
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Models
D51EX-24, D51PX-24 with 4D107E-3 Engine
Serial coverage
B20001 and up
Manual type
Service Manual
Pages
2,685
Publication
KEBM661702
Condition
Brand new
Komatsu D51EX-24, D51PX-24 with 4D107E-3 Engine Crawler Dozer Service Manual, publication KEBM661702

What's inside

From the manual's own table of contents: 376 sections, 700 entries. See sample pages (PDF, 1033 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 376 sections
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD
STANDARD TIGHTENING TORQUE TABLE
CONVERSION TABLE
SPECIFICATIONS
SPECIFICATION DRAWING
WEIGHT TABLE
FUEL, COOLANT, LUBRICANTS (FOR NORTH AMERICA)
FUEL, COOLANT, LUBRICANTS (FOR EUROPEAN UNION)
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
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 SYSTEM4 topics
  • LAYOUT DRAWING OF CONTROL SYSTEM
  • MACHINE 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 SYSTEM6 topics
  • LAYOUT DRAWING OF HST SYSTEM
  • OPERATION OF HST SYSTEM
  • STEERING AND BRAKE CONTROL SYSTEM
  • HST CONTROL SYSTEM
  • PARKING BRAKE CONTROL SYSTEM
  • COMPONENT PARTS OF POWER TRAIN SYSTEM
WORK EQUIPMENT SYSTEM4 topics
  • WORK EQUIPMENT CONTROL
  • LAYOUT DRAWING OF FRONT WORK EQUIPMENT
  • LAYOUT OF FIXED MULTI-SHANK RIPPER
  • COMPONENT PARTS OF WORK EQUIPMENT SYSTEM
UNDERCARRIAGE AND FRAME3 topics
  • MAIN FRAME
  • SUSPENSION
  • TRACK FRAME AND IDLER CUSHION
WORK EQUIPMENT2 topics
  • STRUCTURE OF FRONT WORK EQUIPMENT
  • STRUCTURE OF FIXED MULTI-SHANK RIPPER
CAB AND ITS ATTACHMENTS2 topics
  • ROPS CAB
  • CAB MOUNT
STANDARD VALUE TABLE
STANDARD VALUE TABLE FOR ENGINE2 topics
  • STANDARD VALUE TABLE FOR ENGINE: D51EX-24
  • STANDARD VALUE TABLE FOR ENGINE: D51PX-24
STANDARD VALUE TABLE FOR MACHINE3 topics
  • STANDARD VALUE TABLE FOR MACHINE: D51EX-24
  • STANDARD VALUE TABLE FOR MACHINE: D51PX-24
  • MACHINE POSTURE AND PROCEDURE FOR MEASURING PERFORMANCE
TESTING AND ADJUSTING
RELATED INFORMATION ON TESTING AND ADJUSTING2 topics
  • TOOLS FOR TESTING AND ADJUSTING
  • SKETCH OF TOOLS FOR TESTING AND ADJUSTING
ENGINE AND COOLING SYSTEM7 topics
  • TEST ENGINE SPEED
  • TEST BOOST PRESSURE
  • TEST EXHAUST GAS COLOR
  • TEST AND ADJUST VALVE CLEARANCE
  • TEST COMPRESSION PRESSURE
  • TEST BLOWBY PRESSURE
  • TEST ENGINE 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 KDOC, SCR AND MUFFLER STACK FOR LOOSENESS AND DAMAGE
TEST INSTALLED CONDITION OF CYLINDER HEADS AND MANIFOLDS
TEST ENGINE PIPING FOR DAMAGE AND LOOSENESS
WRITE ASH IN SOOT ACCUMULATION CORRECTION TO ENGINE CONTROLLER
TEST SCR RELATED FUNCTIONS
CLEAN AdBlue/DEF TANK
CLEAN AdBlue/DEF TANK MOUNTING PORTION
POWER TRAIN
TEST AND ADJUST HST OIL PRESSURE
BLEED AIR FROM HST PUMP
TEST OUTLET PRESSURE OF SOLENOID VALVE
TEST TRAVEL DEVIATION
TEST BRAKE PERFORMANCE SIMPLY
TEST AND ADJUST DECELERATION/BRAKE PEDAL
ADJUST PARKING BRAKE LEVER
MOVE MACHINE WHEN IT CANNOT TRAVEL
CHECK AND ADJUST IDLER CLEARANCE
TESTING SPROCKET WEAR
TEST AND ADJUST TRACK TENSION
RELEASE REMAINING PRESSURE FROM HYDRAULIC SYSTEM
TEST AND ADJUST WORK EQUIPMENT OIL PRESSURES
TEST AND ADJUST OIL PRESSURE OF CONTROL CIRCUIT
TEST OUTLET PRESSURE OF EPC SOLENOID VALVE
BLEED AIR FROM WORK EQUIPMENT AND COOLING FAN PUMP
TEST COOLING FAN SPEED
TEST COOLING FAN CIRCUIT OIL PRESSURE
TEST THE PARTS CAUSING HYDRAULIC DRIFT IN WORK EQUIPMENT
TEST INTERNAL OIL LEAKAGE OF WORK EQUIPMENT CYLINDER
BLEED AIR FROM WORK EQUIPMENT CYLINDERS
ADJUST WORK EQUIPMENT LOCK LEVER
ELECTRICAL SYSTEM
SET AND OPERATE MACHINE MONITOR
METHOD FOR STARTING UP KOMTRAX TERMINAL
ADJUSTMENT WHEN HST CONTROLLER HAS BEEN REPLACED
ADJUSTMENT WHEN ELECTRIC OR HYDRAULIC DEVICE HAS BEEN REPLACED
ADJUST REARVIEW CAMERA ANGLE
HANDLE VOLTAGE CIRCUIT OF ENGINE CONTROLLER
HANDLE BATTERY DISCONNECT SWITCH
TEST DIODES
Pm CLINIC
Pm CLINIC SERVICE
TROUBLESHOOTING
RELATED INFORMATION ON TROUBLESHOOTING
GENERAL TROUBLESHOOTING POINTS
TROUBLESHOOTING POINTS FOR UREA SCR SYSTEM
SEQUENCE OF EVENTS IN TROUBLESHOOTING
CHECKS BEFORE TROUBLESHOOTING12 topics
  • INSPECTION PROCEDURE BEFORE TROUBLESHOOTING
  • TESTING IN ACCORDANCE WITH TESTING PROCEDURE
  • PREPARATION FOR TROUBLESHOOTING OF ELECTRICAL SYSTEM
  • PROCEDURE FOR TROUBLESHOOTING
  • 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 REPLACING KDOC
  • FAILURE CODES TABLE
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE)44 topics
  • FAILURE CODE [6091NX]
  • FAILURE CODE [989L00]
  • FAILURE CODE [989M00]
  • FAILURE CODE [989N00]
  • FAILURE CODE [A1U0N3]
  • FAILURE CODE [A1U0N4]
  • FAILURE CODE [A900FR]
  • FAILURE CODE [A900N6]
  • FAILURE CODE [A900NY]
  • FAILURE CODE [AA10NX]
  • FAILURE CODE [AB00KE]
  • FAILURE CODE [AQ10MB]
  • FAILURE CODE [AQ10N3]
  • FAILURE CODE [AS00R2]
  • FAILURE CODE [AS00R3]
  • FAILURE CODE [AS00R4]
  • FAILURE CODE [AS00R5]
  • FAILURE CODE [AS00R6]
  • FAILURE CODE [AS00ZK]
  • FAILURE CODE [AS10KM]
  • FAILURE CODE [AS10NR]
  • FAILURE CODE [AS10NT]
  • FAILURE CODE [B@BAZG]
  • FAILURE CODE [B@BCNS]
  • FAILURE CODE [B@CRNS]
  • FAILURE CODE [B@CRZG]
  • FAILURE CODE [CA115]
  • FAILURE CODE [CA122]
  • FAILURE CODE [CA123]
  • FAILURE CODE [CA131]
  • FAILURE CODE [CA132]
  • FAILURE CODE [CA144]
  • FAILURE CODE [CA145]
  • FAILURE CODE [CA153]
  • FAILURE CODE [CA154]
  • FAILURE CODE [CA187]
  • FAILURE CODE [CA221]
  • FAILURE CODE [CA222]
  • FAILURE CODE [CA227]
  • FAILURE CODE [CA234]
  • FAILURE CODE [CA238]
  • FAILURE CODE [CA239]
  • FAILURE CODE [CA249]
  • FAILURE CODE [CA256]
FAILURE CODE [CA271]
FAILURE CODE [CA272]
FAILURE CODE [CA295]
FAILURE CODE [CA322]
FAILURE CODE [CA324]
FAILURE CODE [CA331]
FAILURE CODE [CA332]
FAILURE CODE [CA343]
FAILURE CODE [CA351]
FAILURE CODE [CA352]
FAILURE CODE [CA356]
FAILURE CODE [CA357]
FAILURE CODE [CA386]
FAILURE CODE [CA428]
FAILURE CODE [CA429]
FAILURE CODE [CA435]
FAILURE CODE [CA441]
FAILURE CODE [CA442]
FAILURE CODE [CA451]
FAILURE CODE [CA452]
FAILURE CODE [CA488]
FAILURE CODE [CA515]
FAILURE CODE [CA516]
FAILURE CODE [CA553]
FAILURE CODE [CA555]
FAILURE CODE [CA556]
FAILURE CODE [CA559]
FAILURE CODE [CA595]
FAILURE CODE [CA687]
FAILURE CODE [CA689]
FAILURE CODE [CA691]
FAILURE CODE [CA692]
FAILURE CODE [CA697]
FAILURE CODE [CA698]
FAILURE CODE [CA731]
FAILURE CODE [CA778]
FAILURE CODE [CA1117]
FAILURE CODE [CA1664]
FAILURE CODE [CA1669]
FAILURE CODE [CA1673]
FAILURE CODE [CA1677]
FAILURE CODE [CA1678]
FAILURE CODE [CA1682]
FAILURE CODE [CA1683]
FAILURE CODE [CA1684]
FAILURE CODE [CA1686]
FAILURE CODE [CA1691]
FAILURE CODE [CA1694]
FAILURE CODE [CA1695]
FAILURE CODE [CA1696]
FAILURE CODE [CA1712]
FAILURE CODE [CA1713]
FAILURE CODE [CA1714]
FAILURE CODE [CA1715]
FAILURE CODE [CA1776]
FAILURE CODE [CA1777]
FAILURE CODE [CA1843]
FAILURE CODE [CA1844]58 topics
  • FAILURE CODE [CA1885]
  • FAILURE CODE [CA1887]
  • FAILURE CODE [CA1896]
  • FAILURE CODE [CA1898]
  • FAILURE CODE [CA1938]
  • FAILURE CODE [CA1942]
  • FAILURE CODE [CA1961]
  • FAILURE CODE [CA1962]
  • FAILURE CODE [CA2185]
  • FAILURE CODE [CA2186]
  • FAILURE CODE [CA2198]
  • FAILURE CODE [CA2272]
  • FAILURE CODE [CA2288]
  • FAILURE CODE [CA2311]
  • FAILURE CODE [CA2349]
  • FAILURE CODE [CA2353]
  • FAILURE CODE [CA2357]
  • FAILURE CODE [CA2373]
  • FAILURE CODE [CA2374]
  • FAILURE CODE [CA2375]
  • FAILURE CODE [CA2376]
  • FAILURE CODE [CA2387]
  • FAILURE CODE [CA2554]
  • FAILURE CODE [CA2634]
  • FAILURE CODE [CA2635]
  • FAILURE CODE [CA2636]
  • FAILURE CODE [CA2637]
  • FAILURE CODE [CA2771]
  • FAILURE CODE [CA2961]
  • FAILURE CODE [CA2973]
  • FAILURE CODE [CA2976]
  • FAILURE CODE [CA3142]
  • FAILURE CODE [CA3143]
  • FAILURE CODE [CA3144]
  • FAILURE CODE [CA3146]
  • FAILURE CODE [CA3147]
  • FAILURE CODE [CA3148]
  • FAILURE CODE [CA3151]
  • FAILURE CODE [CA3165]
  • FAILURE CODE [CA3228]
  • FAILURE CODE [CA3229]
  • FAILURE CODE [CA3231]
  • FAILURE CODE [CA3232]
  • FAILURE CODE [CA3235]
  • FAILURE CODE [CA3239]
  • FAILURE CODE [CA3241]
  • FAILURE CODE [CA3242]
  • FAILURE CODE [CA3251]
  • FAILURE CODE [CA3313]
  • FAILURE CODE [CA3314]
  • FAILURE CODE [CA3315]
  • FAILURE CODE [CA3419]
  • FAILURE CODE [CA3421]
  • FAILURE CODE [CA3497]
  • FAILURE CODE [CA3498]
  • FAILURE CODE [CA3545]
  • FAILURE CODE [CA3547]
  • FAILURE CODE [CA3558]
FAILURE CODE [CA3559]
FAILURE CODE [CA3562]
FAILURE CODE [CA3563]
FAILURE CODE [CA3567]
FAILURE CODE [CA3568]
FAILURE CODE [CA3571]
FAILURE CODE [CA3572]
FAILURE CODE [CA3574]
FAILURE CODE [CA3575]
FAILURE CODE [CA3577]
FAILURE CODE [CA3578]
FAILURE CODE [CA3582]
FAILURE CODE [CA3583]
FAILURE CODE [CA3596]
FAILURE CODE [CA3649]
FAILURE CODE [CA3681]
FAILURE CODE [CA3682]
FAILURE CODE [CA3713]
FAILURE CODE [CA3717]
FAILURE CODE [CA3718]
FAILURE CODE [CA3724]
FAILURE CODE [CA3725]
FAILURE CODE [CA3741]
FAILURE CODE [CA3748]
FAILURE CODE [CA3755]
FAILURE CODE [CA3866]
FAILURE CODE [CA3868]
FAILURE CODE [CA4152]
FAILURE CODE [CA4155]
FAILURE CODE [CA4156]
FAILURE CODE [CA4157]
FAILURE CODE [CA4159]
FAILURE CODE [CA4164]
FAILURE CODE [CA4165]
FAILURE CODE [CA4166]
FAILURE CODE [CA4168]
FAILURE CODE [CA4169]
FAILURE CODE [CA4171]
FAILURE CODE [CA4249]
FAILURE CODE [CA4251]
FAILURE CODE [CA4261]
FAILURE CODE [CA4277]
FAILURE CODE [CA4459]
FAILURE CODE [CA4461]
FAILURE CODE [CA4533]
FAILURE CODE [CA4534]
FAILURE CODE [CA4731]
FAILURE CODE [CA4732]
FAILURE CODE [CA4739]
FAILURE CODE [CA4768]
FAILURE CODE [CA4769]
FAILURE CODE [CA4842]
FAILURE CODE [CA4952]
FAILURE CODE [CA5115]
FAILURE CODE [CA5179]
FAILURE CODE [CA5181]
FAILURE CODE [CA5387]
FAILURE CODE [CA5388]58 topics
  • FAILURE CODE [CA5389]
  • FAILURE CODE [CA5391]
  • FAILURE CODE [CA5392]
  • FAILURE CODE [CA5393]
  • FAILURE CODE [CA5394]
  • FAILURE CODE [CA5395]
  • FAILURE CODE [CA5396]
  • FAILURE CODE [CA5631]
  • FAILURE CODE [CA5632]
  • FAILURE CODE [CA5938]
  • FAILURE CODE [D130KA]
  • FAILURE CODE [D130KB]
  • FAILURE CODE [D130KY]
  • FAILURE CODE [D19JKZ]
  • FAILURE CODE [D811MC]
  • FAILURE CODE [D862KA]
  • FAILURE CODE [D8ALKA]
  • FAILURE CODE [D8ALKB]
  • FAILURE CODE [D8AQKR]
  • FAILURE CODE [DAF0MB]
  • FAILURE CODE [DAF0MC]
  • FAILURE CODE [DAF8KB]
  • FAILURE CODE [DAF9KQ]
  • FAILURE CODE [DAFGMC]
  • FAILURE CODE [DAFLKA]
  • FAILURE CODE [DAFLKB]
  • FAILURE CODE [DAFQKR]
  • FAILURE CODE [DAJ000]
  • FAILURE CODE [DAJ0KQ]
  • FAILURE CODE [DAJ0KT]
  • FAILURE CODE [DAJ0MC]
  • FAILURE CODE [DAJ1KK]
  • FAILURE CODE [DAJ2KK]
  • FAILURE CODE [DAJ5KK]
  • FAILURE CODE [DAJ6KK]
  • FAILURE CODE [DAJLKA]
  • FAILURE CODE [DAJLKB]
  • FAILURE CODE [DAJPMA]
  • FAILURE CODE [DAJQKR]
  • FAILURE CODE [DAJRKR]
  • FAILURE CODE [DB2QKR]
  • FAILURE CODE [DB2RKR]
  • FAILURE CODE [DD12KA]
  • FAILURE CODE [DD12KB]
  • FAILURE CODE [DD13KA]
  • FAILURE CODE [DD13KB]
  • FAILURE CODE [DD14KA]
  • FAILURE CODE [DD14KB]
  • FAILURE CODE [DDKAKA]
  • FAILURE CODE [DDKAKB]
  • FAILURE CODE [DDKFL4]
  • FAILURE CODE [DDKGL4]
  • FAILURE CODE [DDKHKA]
  • FAILURE CODE [DDKHKB]
  • FAILURE CODE [DDNLKA]
  • FAILURE CODE [DDNLKB]
  • FAILURE CODE [DDP6KA]
  • FAILURE CODE [DDP6KB]
FAILURE CODE [DDP6MA]
FAILURE CODE [DDU1FS]
FAILURE CODE [DDU1KA]
FAILURE CODE [DDU1KY]
FAILURE CODE [DFA4KX]
FAILURE CODE [DFA4KZ]
FAILURE CODE [DFA4L8]
FAILURE CODE [DFA5KA]
FAILURE CODE [DFA5KB]
FAILURE CODE [DFA6KA]
FAILURE CODE [DFA6KB]
FAILURE CODE [DFA7KX]
FAILURE CODE [DFA7KZ]
FAILURE CODE [DFA7L8]
FAILURE CODE [DFA8KA]
FAILURE CODE [DFA8KB]
FAILURE CODE [DFA9KA]
FAILURE CODE [DFA9KB]
FAILURE CODE [DGS1KA]
FAILURE CODE [DGS1KX]
FAILURE CODE [DH21KA]
FAILURE CODE [DH21KB]
FAILURE CODE [DHA4KA]
FAILURE CODE [DHH7KA]
FAILURE CODE [DHH7KB]
FAILURE CODE [DHH8KA]
FAILURE CODE [DHH8KB]
FAILURE CODE [DHH9KA]
FAILURE CODE [DHH9KB]
FAILURE CODE [DHHAKA]
FAILURE CODE [DHHAKB]
FAILURE CODE [DK30KA]
FAILURE CODE [DK30KB]
FAILURE CODE [DK30KX]
FAILURE CODE [DK30KZ]
FAILURE CODE [DK30L8]
FAILURE CODE [DK31KA]
FAILURE CODE [DK31KB]
FAILURE CODE [DK40KA]
FAILURE CODE [DK40KB]
FAILURE CODE [DK55KX]
FAILURE CODE [DK55KZ]
FAILURE CODE [DK55L8]
FAILURE CODE [DK56KA]
FAILURE CODE [DK56KB]
FAILURE CODE [DK57KA]
FAILURE CODE [DK57KB]
FAILURE CODE [DLM0KX]
FAILURE CODE [DLM1KA]
FAILURE CODE [DLM1KB]
FAILURE CODE [DLM1MA]
FAILURE CODE [DLM2KA]
FAILURE CODE [DLM2KB]
FAILURE CODE [DLM2MA]
FAILURE CODE [DLM3KA]
FAILURE CODE [DLM3KB]
FAILURE CODE [DLM3MB]
FAILURE CODE [DN21FS]52 topics
  • FAILURE CODE [DR21KX]
  • FAILURE CODE [DR31KX]
  • FAILURE CODE [DV20KB]
  • FAILURE CODE [DW4BKA]
  • FAILURE CODE [DW4BKB]
  • FAILURE CODE [DW4BKY]
  • FAILURE CODE [DW7BKA]
  • FAILURE CODE [DW7BKB]
  • FAILURE CODE [DW7EKA]
  • FAILURE CODE [DW7EKB]
  • FAILURE CODE [DW7EKY]
  • FAILURE CODE [DWN5KA]
  • FAILURE CODE [DWN5KB]
  • FAILURE CODE [DWN5KY]
  • FAILURE CODE [DXA4KA]
  • FAILURE CODE [DXA4KB]
  • FAILURE CODE [DXA4KY]
  • FAILURE CODE [DXA5KA]
  • FAILURE CODE [DXA5KB]
  • FAILURE CODE [DXA5KY]
  • FAILURE CODE [DXA6KA]
  • FAILURE CODE [DXA6KB]
  • FAILURE CODE [DXA6KY]
  • FAILURE CODE [DXA7KA]
  • FAILURE CODE [DXA7KB]
  • FAILURE CODE [DXA7KY]
  • FAILURE CODE [DXHRKA]
  • FAILURE CODE [DXHRKB]
  • FAILURE CODE [DXHRKY]
  • FAILURE CODE [DXHSKA]
  • FAILURE CODE [DXHSKB]
  • FAILURE CODE [DXHSKY]
  • FAILURE CODE [DXHTKA]
  • FAILURE CODE [DXHTKB]
  • FAILURE CODE [DXHTKY]
  • FAILURE CODE [DXHUKA]
  • FAILURE CODE [DXHUKB]
  • FAILURE CODE [DXHUKY]
  • FAILURE CODE [DXJ4KA]
  • FAILURE CODE [DXJ4KB]
  • FAILURE CODE [DXJCKA]
  • FAILURE CODE [DXJCKB]
  • FAILURE CODE [DXJCKY]
  • FAILURE CODE [DXJDKA]
  • FAILURE CODE [DXJDKB]
  • FAILURE CODE [DXJDKY]
  • FAILURE CODE [DXK1KA]
  • FAILURE CODE [DXK1KB]
  • FAILURE CODE [DXK1KY]
  • FAILURE CODE [DXK2KA]
  • FAILURE CODE [DXK2KB]
  • FAILURE CODE [DXK2KY]
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)6 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
  • NOTHING
  • CHECK MONITOR LIGHTS UP
CHARGE LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING1 topic
  • NING
ENGINE OIL PRESSURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING1 topic
  • TURE
FUEL LEVEL GAUGE DOES NOT INDICATE CORRECT LEVEL
OPERATION MODE DOES NOT CHANGE
OPERATING CUSTOMIZE SWITCH DOES NOT DISPLAY CUSTOMIZE SCREEN1 topic
  • CHINE
SERVICE MODE CANNOT BE SELECTED
WORK EQUIPMENT DOES NOT OPERATE
FOOT HEATER DOES NOT OPERATE
HORN DOES NOT SOUND
HORN DOES NOT STOP SOUNDING
BACKUP ALARM DOES NOT SOUND
BACKUP ALARM DOES NOT STOP SOUNDING
HEADLAMP DOES NOT LIGHT UP
REAR LAMP DOES NOT LIGHT UP
ALL WIPERS DO NOT OPERATE
FRONT WIPER DOES NOT OPERATE
REAR WIPER DOES NOT OPERATE
LEFT DOOR WIPER DOES NOT OPERATE
RIGHT DOOR WIPER DOES NOT OPERATE
FRONT WASHER DOES NOT OPERATE
REAR WASHER DOES NOT OPERATE
LEFT DOOR WASHER DOES NOT OPERATE
RIGHT DOOR WASHER DOES NOT OPERATE
KOMTRAX SYSTEM DOES NOT OPERATE NORMALLY
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (H MODE)
FAILURE MODE AND CAUSE TABLE3 topics
  • TRAVEL SYSTEMS OPERATE)
  • OF R.H. OR L.H. TRAVEL SYSTEMS CANNOT OPERATE)
  • ONE OF THE TRAVEL SYSTEMS CANNOT OPERATE IN ONE DIRECTION)
TRAVEL SPEED OR POWER IS LOW
SPEED RANGE DOES NOT CHANGE
SHOCK IS LARGE WHEN MACHINE MOVES OFF OR STOPS16 topics
  • MACHINE DEVIATES LARGELY
  • MACHINE DRIFT ON A SLOPE IS LARGE
  • ENGINE SPEED DROPS LARGELY OR ENGINE STOPS
  • UNUSUAL NOISE IS HEARD FROM AROUND HST PUMP OR MOTOR
  • HST OIL TEMPERATURE (HYDRAULIC OIL TEMPERATURE) RISES TOO HIGH
  • ALL WORK EQUIPMENT DO NOT OPERATE
  • ALL WORK EQUIPMENTS SPEED OR POWER IS LOW
  • BLADE LIFT SPEED OR POWER IS LOW
  • BLADE TILT SPEED OR POWER IS LOW
  • BLADE ANGLE SPEED OR POWER IS LOW
  • TIME LAG OF BLADE LIFT IS LARGE
  • HYDRAULIC DRIFT OF LIFTED BLADE IS LARGE
  • HYDRAULIC DRIFT OF TILTED BLADE IS LARGE
  • PUMP OR CONTROL VALVE
  • FAN SPEED IS ABNORMAL (TOO HIGH OR LOW, OR STATIONARY)
  • UNUSUAL NOISE IS HEARD FROM AROUND FAN
TROUBLESHOOTING OF ENGINE (S-MODE)25 topics
  • INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (S MODE)
  • ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT
  • BUT DOES NOT START)
  • ENGINE STARTABILITY IS POOR
  • ENGINE DOES NOT PICK UP SMOOTHLY
  • ENGINE STOPS DURING OPERATION
  • ENGINE RUNS ROUGH OR IS UNSTABLE
  • ENGINE LACKS POWER
  • EXHAUST SMOKE IS BLACK
  • ENGINE OIL CONSUMPTION IS EXCESSIVE
  • OIL BECOMES CONTAMINATED QUICKLY
  • FUEL CONSUMPTION IS EXCESSIVE
  • OIL PRESSURE DROPS
  • FUEL MIXES INTO ENGINE OIL
  • WATER MIXES INTO ENGINE OIL (MILKY)
  • COOLANT TEMPERATURE RISES TOO HIGH (OVERHEATING)
  • UNUSUAL NOISE IS HEARD
  • VIBRATION IS EXCESSIVE
  • AIR CANNOT BE BLED FROM FUEL CIRCUIT
  • ACTIVE REGENERATION IS EXECUTED FREQUENTLY
  • ACTIVE REGENERATION TAKES TIME
  • WHITE SMOKE IS EXHAUSTED DURING ACTIVE REGENERATION
  • AdBlue/DEF CONSUMPTION IS EXCESSIVE
  • THERE IS UNUSUAL SMELL (IRRITATING ODOR)
  • FOREIGN MATERIALS ENTER AdBlue/DEF (AdBlue/DEF INCREASES)
DISASSEMBLY AND ASSEMBLY
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY5 topics
  • HOW TO READ THIS MANUAL
  • COATING MATERIALS LIST
  • SPECIAL TOOLS LIST
  • SKETCHES OF SPECIAL TOOLS
  • REMOVE AND INSTALL SUPPLY PUMP ASSEMBLY
REMOVE AND INSTALL INJECTOR ASSEMBLY
REMOVE AND INSTALL CYLINDER HEAD ASSEMBLY
REMOVE AND INSTALL EGR VALVE ASSEMBLY
REMOVE AND INSTALL EGR COOLER ASSEMBLY
REMOVE AND INSTALL STARTING MOTOR ASSEMBLY
REMOVE AND INSTALL AIR CONDITIONER COMPRESSOR BELT
REMOVE AND INSTALL ALTERNATOR BELT
REMOVE AND INSTALL AUTOMATIC TENSIONER
REMOVE AND INSTALL RADIATOR ASSEMBLY
REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY
REMOVE AND INSTALL AFTERCOOLER ASSEMBLY
REMOVE AND INSTALL COOLING FAN DRIVE ASSEMBLY
REMOVE AND INSTALL COOLING FAN MOTOR ASSEMBLY
REMOVE AND INSTALL ENGINE, HST PUMP ASSEMBLY
REMOVE AND INSTALL ENGINE FRONT OIL SEAL
REMOVE AND INSTALL ENGINE REAR OIL SEAL
REMOVE AND INSTALL ENGINE HOOD ASSEMBLY
REMOVE AND INSTALL KDOC ASSEMBLY
REMOVE AND INSTALL KDOC AND SCR ASSEMBLY
REMOVE AND INSTALL BELLOWS PIPE ASSEMBLY
REMOVE AND INSTALL FUEL TANK ASSEMBLY
REMOVE AND INSTALL AdBlue/DEF TANK ASSEMBLY
REMOVE AND INSTALL AdBlue/DEF TANK SENSOR FLANGE ASSEMBLY
REMOVE AND INSTALL AdBlue/DEF TANK SENSOR
REMOVE AND INSTALL AdBlue/DEF TANK STRAINER
REMOVE AND INSTALL SCR ASSEMBLY
REMOVE AND INSTALL KCCV ASSEMBLY
REMOVE AND INSTALL AdBlue/DEF MIXING TUBE
REMOVE AND INSTALL AdBlue/DEF INJECTOR
REMOVE AND INSTALL AdBlue/DEF PUMP
REMOVE AND INSTALL AdBlue/DEF HOSE
REMOVE AND INSTALL AIR CLEANER ASSEMBLY
REMOVE AND INSTALL AIR CONDITIONER COMPRESSOR ASSEMBLY
REMOVE AND INSTALL AIR CONDITIONER CONDENSER ASSEMBLY
DISASSEMBLE AND ASSEMBLE FINAL DRIVE ASSEMBLY
REMOVE AND INSTALL TRACK FRAME ASSEMBLY
REMOVE AND INSTALL IDLER ASSEMBLY
DISASSEMBLE AND ASSEMBLE IDLER ASSEMBLY
REMOVE AND INSTALL RECOIL SPRING ASSEMBLY
DISASSEMBLE AND ASSEMBLE RECOIL SPRING ASSEMBLY
REMOVE AND INSTALL TRACK ROLLER ASSEMBLY
DISASSEMBLE AND ASSEMBLE TRACK ROLLER ASSEMBLY
REMOVE AND INSTALL CARRIER ROLLER ASSEMBLY
DISASSEMBLE AND ASSEMBLE CARRIER ROLLER ASSEMBLY
REMOVE AND INSTALL PIVOT SHAFT ASSEMBLY
SEPARATE AND CONNECT TRACK ASSEMBLY
SEPARATE AND CONNECT PLUS TYPE TRACK ASSEMBLY
DISASSEMBLE AND ASSEMBLE TRACK ASSEMBLY GENERALLY
DISASSEMBLE AND ASSEMBLE PLUS TYPE TRACK ASSEMBLY GENERALLY
DISASSEMBLE AND ASSEMBLE ONE LINK OF TRACK SHOE ASSEMBLY ON THE FIELD1 topic
  • FIELD
REMOVE AND INSTALL EQUALIZER BAR ASSEMBLY
REMOVE AND INSTALL EQUALIZER BAR SIDE BUSHINGS
REMOVE AND INSTALL SEGMENT TEETH

Inside this manual

Real pages from this service manual (2,685 pages). Open the sample pages (PDF, 1032 KB)

Sample pages from the Komatsu D51EX-24, D51PX-24 with 4D107E-3 Engine Crawler Dozer Service Manual: Specifications, Troubleshooting, Diagram, Color page, Color page, Foldout diagram
  • Specifications, page 356: Sectional view
  • Troubleshooting, page 1,258: FAILURE CODE [CA4277]
  • Diagram, page 1,627: Procedure, measuring location, criteria and remarks
  • Color page, page 166: ENGINE SYSTEM
  • Color page, page 358: TRACK FRAME AND IDLER CUSHION
  • Foldout diagram, page 2,640: ELECTRICAL CIRCUIT DIAGRAM (1/14)

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the D51EX-24 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.

This manual: Service Manual KEBM661702$269.67
Other manuals for the D51EX-24

Operator's manuals

Details
Details

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, 2,685 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 D51EX-24, D51PX-24Service Manual · SEN06617-02 · $269.77Komatsu D51EXi-24, D51PXi-24 4D107E-3 EngineService Manual · KEBM662102 · $299.65

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).