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Komatsu PC490LC-11 with 6D125E-7 Engine Hydraulic Excavator Service Manual

2,765 pages · Publication CEBM028303

$279.57
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Models
PC490LC-11 with 6D125E-7 Engine
Serial coverage
A41001 and up
Manual type
Service Manual
Pages
2,765
Publication
CEBM028303
Condition
Brand new
Komatsu PC490LC-11 with 6D125E-7 Engine Hydraulic Excavator Service Manual, publication CEBM028303

What's inside

From the manual's own table of contents: 351 sections, 700 entries. See sample pages (PDF, 1075 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 351 sections
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD
STANDARD TIGHTENING TORQUE TABLE
CONVERSION TABLE
SPECIFICATIONS
SPECIFICATION DRAWING
WORKING RANGE DRAWINGS
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
ENGINE SYSTEM
LAYOUT DRAWING OF ENGINE SYSTEM
ENGINE CONTROL SYSTEM
ENGINE AUTOMATIC WARM-UP SYSTEM
OVERHEAT PREVENTION SYSTEM3 topics
  • TURBOCHARGER PROTECTION SYSTEM
  • AUTOMATIC IDLE STOP SYSTEM
  • COMPONENT PARTS OF ENGINE SYSTEM
COOLING SYSTEM5 topics
  • LAYOUT DRAWING OF COOLING SYSTEM
  • FAN SPEED CONTROL SYSTEM OF HYDRAULIC FAN
  • ENGINE OUTPUT CONTROL SYSTEM OF HYDRAULIC FAN
  • FAN REVERSE ROTATION SYSTEM OF HYDRAULIC FAN
  • COMPONENT PARTS OF COOLING SYSTEM
CONTROL SYSTEM4 topics
  • LAYOUT DRAWING OF CONTROL SYSTEM
  • MACHINE MONITOR SYSTEM
  • KOMTRAX SYSTEM
  • COMPONENT PARTS OF CONTROL SYSTEM
HYDRAULIC SYSTEM5 topics
  • LAYOUT DRAWING OF HYDRAULIC SYSTEM
  • CLSS
  • ENGINE AND PUMP COMBINED CONTROL SYSTEM
  • PUMP AND VALVE CONTROL SYSTEM
  • COMPONENT PARTS OF HYDRAULIC SYSTEM
WORK EQUIPMENT SYSTEM9 topics
  • LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM
  • STRUCTURE OF VALVE CONTROL
  • PPC LEVERS
  • POWER MAXIMIZING SYSTEM
  • MACHINE PUSH-UP SYSTEM
  • PPC LOCK SYSTEM
  • WORK EQUIPMENT AND TRAVEL AUTOMATIC LOCK SYSTEM
  • OIL FLOW ADJUSTER SYSTEM FOR ATTACHMENT
  • COMPONENT PARTS OF WORK EQUIPMENT SYSTEM
SWING SYSTEM3 topics
  • LAYOUT DRAWING OF SWING SYSTEM
  • SWING CONTROL SYSTEM DIAGRAM
  • COMPONENT PARTS OF SWING SYSTEM
TRAVEL SYSTEM3 topics
  • LAYOUT DRAWING OF TRAVEL SYSTEM
  • TRAVEL CONTROL SYSTEM DIAGRAM
  • COMPONENT PARTS OF TRAVEL SYSTEM
UNDERCARRIAGE AND FRAME1 topic
  • LAYOUT DRAWING OF UNDERCARRIAGE
WORK EQUIPMENT4 topics
  • STRUCTURE OF WORK EQUIPMENT
  • FUNCTION OF WORK EQUIPMENT
  • WORK EQUIPMENT CLEARANCE ADJUSTMENT SHIM
  • BUCKET CLEARANCE ADJUSTMENT SHIM
CAB AND ITS ATTACHMENTS3 topics
  • ROPS CAB
  • CAB MOUNT
  • CAB TIPPING STOPPER
STANDARD VALUE TABLE
STANDARD VALUE TABLE FOR ENGINE1 topic
  • STANDARD VALUE TABLE FOR ENGINE: PC490LC-11
STANDARD VALUE TABLE FOR MACHINE2 topics
  • STANDARD VALUE TABLE FOR MACHINE: PC490LC-11
  • MACHINE POSTURE AND PROCEDURE FOR MEASURING PERFORMANCE
STANDARD VALUE TABLE FOR ELECTRICAL
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
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 RETURN RATE AND LEAKAGE
BLEED AIR FROM FUEL SYSTEM
TEST FUEL CIRCUIT FOR LEAKAGE
HANDLE CYLINDER CUT-OUT MODE OPERATION
HANDLE NO-INJECTION CRANKING OPERATION
TEST AND ADJUST AIR CONDITIONER COMPRESSOR BELT TENSION
CLEAN FUEL DOSER
WRITE INJECTOR COMPENSATION VALUE TO ENGINE CONTROLLER
WRITING CORRECTION FOR ASH IN SOOT ACCUMULATION TO ENGINE CONTROLLER
TEST SCR RELATED FUNCTIONS
CLEAN AdBlue/DEF TANK
POWER TRAIN
TEST SWING CIRCLE BEARING CLEARANCE
TEST AND ADJUST TRACK TENSION
RELEASE REMAINING PRESSURE FROM HYDRAULIC SYSTEM
TEST OIL PRESSURE OF CONTROL CIRCUIT
TEST AND ADJUST OIL PRESSURE IN PUMP PC CONTROL CIRCUIT
TEST AND ADJUST OIL PRESSURE IN PUMP LS CONTROL CIRCUIT
TEST OUTLET PRESSURE OF SOLENOID VALVE
TEST PPC VALVE OUTLET PRESSURE
ADJUST WORK EQUIPMENT AND SWING PPC VALVES
TEST PUMP SWASH PLATE SENSOR
TEST COOLING FAN SPEED
TEST OIL PRESSURE IN FAN PUMP CIRCUIT
TEST FAN PUMP EPC ELECTRIC CURRENT
TEST FAN PUMP EPC SOLENOID VALVE OUTLET PRESSURE
TEST THE PARTS CAUSING HYDRAULIC DRIFT IN WORK EQUIPMENT
TEST OIL LEAKAGE
BLEED AIR FROM HYDRAULIC CIRCUIT
TEST CAB TIPPING STOPPER
ELECTRICAL SYSTEM
SET AND OPERATE MACHINE MONITOR
METHOD FOR STARTING UP KOMTRAX TERMINAL
ADJUST REARVIEW CAMERA ANGLE
HANDLE VOLTAGE CIRCUIT OF ENGINE CONTROLLER2 topics
  • HANDLE BATTERY DISCONNECT SWITCH
  • TEST DIODES
Pm CLINIC1 topic
  • Pm CLINIC SERVICE
TROUBLESHOOTING
RELATED INFORMATION ON TROUBLESHOOTING16 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
  • PREPARATION FOR TROUBLESHOOTING OF ELECTRICAL SYSTEM
  • PROCEDURE FOR TESTING AND TROUBLESHOOTING
  • SYMPTOMS OF FAILURE AND TROUBLESHOOTING NUMBERS
  • INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE
  • CONNECTOR LIST AND LAYOUT
  • CONNECTOR CONTACT IDENTIFICATION
  • BOX AND T-BRANCH ADAPTER TABLE
  • FUSE LOCATION TABLE
  • PRECAUTIONS FOR CLEANING AND REPLACING KDPF (KCSF and KDOC)
  • FAILURE CODES TABLE
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE)31 topics
  • FAILURE CODE [879AKA]
  • FAILURE CODE [879AKB]
  • FAILURE CODE [879BKA]
  • FAILURE CODE [879BKB]
  • FAILURE CODE [879CKA]
  • FAILURE CODE [879CKB]
  • FAILURE CODE [879DKZ]
  • FAILURE CODE [879EMC]
  • FAILURE CODE [879FMC]
  • FAILURE CODE [879GKX]
  • 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 [AQ10N3]
  • FAILURE CODE [AS00N3]
  • 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@BAZK]
FAILURE CODE [B@BCNS]
FAILURE CODE [B@BCZK]
FAILURE CODE [B@HANS]
FAILURE CODE [CA115]
FAILURE CODE [CA122]
FAILURE CODE [CA123]
FAILURE CODE [CA131]
FAILURE CODE [CA132]
FAILURE CODE [CA135]
FAILURE CODE [CA141]
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 [CA273]
FAILURE CODE [CA274]
FAILURE CODE [CA322]
FAILURE CODE [CA323]
FAILURE CODE [CA324]
FAILURE CODE [CA325]
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 [CA441]
FAILURE CODE [CA442]
FAILURE CODE [CA449]
FAILURE CODE [CA451]
FAILURE CODE [CA452]
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]58 topics
  • 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]
  • FAILURE CODE [CA1879]
  • FAILURE CODE [CA1881]
  • FAILURE CODE [CA1883]
  • FAILURE CODE [CA1885]
  • FAILURE CODE [CA1887]
  • FAILURE CODE [CA1921]
  • FAILURE CODE [CA1922]
  • FAILURE CODE [CA1923]
  • FAILURE CODE [CA1924]
  • FAILURE CODE [CA1925]
  • FAILURE CODE [CA1927]
  • FAILURE CODE [CA1928]
  • FAILURE CODE [CA1942]
  • FAILURE CODE [CA1963]
  • FAILURE CODE [CA1977]
  • FAILURE CODE [CA1993]
  • FAILURE CODE [CA2185]
  • FAILURE CODE [CA2186]
  • FAILURE CODE [CA2249]
  • FAILURE CODE [CA2265]
  • FAILURE CODE [CA2266]
  • FAILURE CODE [CA2271]
  • FAILURE CODE [CA2272]
  • FAILURE CODE [CA2349]
  • FAILURE CODE [CA2353]
  • FAILURE CODE [CA2357]
  • FAILURE CODE [CA2381]
  • FAILURE CODE [CA2382]
  • FAILURE CODE [CA2383]
  • FAILURE CODE [CA2386]
  • FAILURE CODE [CA2387]
  • FAILURE CODE [CA2555]
  • FAILURE CODE [CA2556]
FAILURE CODE [CA2637]
FAILURE CODE [CA2639]
FAILURE CODE [CA2732]
FAILURE CODE [CA2733]
FAILURE CODE [CA2741]
FAILURE CODE [CA2765]
FAILURE CODE [CA2771]
FAILURE CODE [CA2777]
FAILURE CODE [CA2878]
FAILURE CODE [CA2881]
FAILURE CODE [CA2976]
FAILURE CODE [CA3133]
FAILURE CODE [CA3134]
FAILURE CODE [CA3135]
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 [CA3167]
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 [CA3253]
FAILURE CODE [CA3254]
FAILURE CODE [CA3255]
FAILURE CODE [CA3256]
FAILURE CODE [CA3311]
FAILURE CODE [CA3312]
FAILURE CODE [CA3313]
FAILURE CODE [CA3314]
FAILURE CODE [CA3315]
FAILURE CODE [CA3316]
FAILURE CODE [CA3317]
FAILURE CODE [CA3318]
FAILURE CODE [CA3319]
FAILURE CODE [CA3321]
FAILURE CODE [CA3322]
FAILURE CODE [CA3419]
FAILURE CODE [CA3421]
FAILURE CODE [CA3497]
FAILURE CODE [CA3498]
FAILURE CODE [CA3543]
FAILURE CODE [CA3545]
FAILURE CODE [CA3547]
FAILURE CODE [CA3558]
FAILURE CODE [CA3559]
FAILURE CODE [CA3562]
FAILURE CODE [CA3563]
FAILURE CODE [CA3567]58 topics
  • 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 [CA3725]
  • FAILURE CODE [CA3748]
  • FAILURE CODE [CA3751]
  • FAILURE CODE [CA3755]
  • FAILURE CODE [CA3866]
  • FAILURE CODE [CA3867]
  • FAILURE CODE [CA3868]
  • FAILURE CODE [CA3899]
  • FAILURE CODE [CA3911]
  • FAILURE CODE [CA3912]
  • FAILURE CODE [CA3932]
  • FAILURE CODE [CA3933]
  • FAILURE CODE [CA3934]
  • FAILURE CODE [CA3935]
  • FAILURE CODE [CA3936]
  • FAILURE CODE [CA4151]
  • FAILURE CODE [CA4152]
  • FAILURE CODE [CA4155]
  • FAILURE CODE [CA4156]
  • FAILURE CODE [CA4157]
  • FAILURE CODE [CA4158]
  • FAILURE CODE [CA4159]
  • FAILURE CODE [CA4161]
  • FAILURE CODE [CA4162]
  • FAILURE CODE [CA4163]
  • 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 [CA4259]
  • FAILURE CODE [CA4261]
  • FAILURE CODE [CA4277]
  • FAILURE CODE [CA4281]
  • FAILURE CODE [CA4459]
  • FAILURE CODE [CA4461]
  • FAILURE CODE [CA4658]
  • 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 [CA5383]
FAILURE CODE [D110KB]
FAILURE CODE [D19JKZ]
FAILURE CODE [D811MC]
FAILURE CODE [D862KA]
FAILURE CODE [D8ALKA]
FAILURE CODE [D8ALKB]
FAILURE CODE [D8AQKR]
FAILURE CODE [DA20MC]
FAILURE CODE [DA22KK]
FAILURE CODE [DA25KP]
FAILURE CODE [DA29KQ]
FAILURE CODE [DA2LKA]
FAILURE CODE [DA2LKB]
FAILURE CODE [DA2QKR]
FAILURE CODE [DA2RKR]
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 [DAZ9KQ]
FAILURE CODE [DAZQKR]
FAILURE CODE [DB2QKR]
FAILURE CODE [DB2RKR]
FAILURE CODE [DDNRKA]
FAILURE CODE [DDNRKY]
FAILURE CODE [DDNS00]
FAILURE CODE [DGH2KA]
FAILURE CODE [DGH2KB]
FAILURE CODE [DHA4KA]
FAILURE CODE [DHAAMA]
FAILURE CODE [DHACMA]
FAILURE CODE [DHPAMA]
FAILURE CODE [DHPBMA]
FAILURE CODE [DHS3MA]
FAILURE CODE [DHS4MA]
FAILURE CODE [DHS8MA]
FAILURE CODE [DHS9MA]
FAILURE CODE [DHSAMA]
FAILURE CODE [DHSBMA]
FAILURE CODE [DHSCMA]
FAILURE CODE [DHSDMA]
FAILURE CODE [DHSFMA]
FAILURE CODE [DHSGMA]
FAILURE CODE [DHSHMA]
FAILURE CODE [DHSJMA]58 topics
  • FAILURE CODE [DKR0MA]
  • FAILURE CODE [DKR1MA]
  • FAILURE CODE [DKULKA]
  • FAILURE CODE [DKULKB]
  • FAILURE CODE [DKULKY]
  • FAILURE CODE [DLM3KA]
  • FAILURE CODE [DLM3KB]
  • FAILURE CODE [DLM3MB]
  • FAILURE CODE [DR21KX]
  • FAILURE CODE [DR31KX]
  • FAILURE CODE [DV20KB]
  • FAILURE CODE [DW43KA]
  • FAILURE CODE [DW43KB]
  • FAILURE CODE [DW43KY]
  • FAILURE CODE [DW45KA]
  • FAILURE CODE [DW45KB]
  • FAILURE CODE [DW45KY]
  • FAILURE CODE [DW4CKY]
  • FAILURE CODE [DW7BKA]
  • FAILURE CODE [DW7BKB]
  • FAILURE CODE [DW7BKY]
  • FAILURE CODE [DW91KA]
  • FAILURE CODE [DW91KB]
  • FAILURE CODE [DW91KY]
  • FAILURE CODE [DWA2KA]
  • FAILURE CODE [DWA2KB]
  • FAILURE CODE [DWA2KY]
  • FAILURE CODE [DWK0KA]
  • FAILURE CODE [DWK0KB]
  • FAILURE CODE [DWK0KY]
  • FAILURE CODE [DWK2KA]
  • FAILURE CODE [DWK2KB]
  • FAILURE CODE [DWK2KY]
  • FAILURE CODE [DWK8KA]
  • FAILURE CODE [DWK8KB]
  • FAILURE CODE [DWK8KY]
  • FAILURE CODE [DX16KA]
  • FAILURE CODE [DX16KB]
  • FAILURE CODE [DXA8KA]
  • FAILURE CODE [DXA8KB]
  • FAILURE CODE [DXA9KA]
  • FAILURE CODE [DXA9KB]
  • FAILURE CODE [DXE0KA]
  • FAILURE CODE [DXE0KB]
  • FAILURE CODE [DXE4KA]
  • FAILURE CODE [DXE4KB]
  • FAILURE CODE [DXE4KY]
  • FAILURE CODE [DXE5KA]
  • FAILURE CODE [DXE5KB]
  • FAILURE CODE [DXE6KA]
  • FAILURE CODE [DXE6KB]
  • FAILURE CODE [DXE7KA]
  • FAILURE CODE [DXE7KB]
  • FAILURE CODE [DXE7KY]
  • FAILURE CODE [DXE8KA]
  • FAILURE CODE [DXE8KB]
  • FAILURE CODE [DXE8KY]
  • FAILURE CODE [DXE9KA]
FAILURE CODE [DXE9KB]
FAILURE CODE [DXE9KY]
FAILURE CODE [DXEAKA]
FAILURE CODE [DXEAKB]
FAILURE CODE [DXEAKY]
FAILURE CODE [DY20KA]
FAILURE CODE [DY20MA]
FAILURE CODE [DY2CKB]
FAILURE CODE [DY2DKB]
FAILURE CODE [DY2EKB]
FAILURE CODE [DFB1KZ] Service Lever Potentio 1 Abnormality
FAILURE CODE [DFB2KZ] Service Lever Potentio 2 Abnormality
FAILURE CODE [DFB5KZ] Service Lever Sub Potentio 1 Abnormality
FAILURE CODE [DFB6KZ] Service Lever Sub Potentio 2 Abnormality
FAILURE CODE [DFB3L8] Service Lever 1 Potentio Error
FAILURE CODE [DFB4L8] Service Lever 2 Potentio Error
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)
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 UP4 topics
  • NOTHING
  • GINE OIL LEVEL MONITOR LIGHTS UP IN YELLOW
  • TOR COOLANT LEVEL MONITOR LIGHTS UP IN YELLOW
  • NING
CHARGE LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING
FUEL LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING
FUEL GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM OR MAXIMUM
DISPLAY OF FUEL GAUGE DIFFERS FROM ACTUAL FUEL LEVEL4 topics
  • OR MAXIMUM
  • ANT TEMPERATURE
  • MAXIMUM
  • PERATURE
SOME AREAS OF MACHINE MONITOR SCREEN ARE NOT DISPLAYED
FUNCTION SWITCH DOES NOT OPERATE
AUTOMATIC WARM-UP SYSTEM DOES NOT WORK (IN COLD WEATHER)1 topic
  • DOES NOT LIGHT UP OR DOES NOT GO OFF
AUTO-DECELERATOR IS NOT OPERATED OR CANCELED WITH LEVER20 topics
  • NOT DISPLAYED
  • NOT CHANGED
  • CHANGE
  • ALARM BUZZER CANNOT BE CANCELED
  • SERVICE MODE CANNOT BE SELECTED
  • ALL OF WORK EQUIPMENTS, SWING, AND TRAVEL MECHANISM DO NOT MOVE
  • ALL OF WORK EQUIPMENT, SWING, AND TRAVEL MECHANISM DO NOT LOCK
  • SWING
  • BRAKE DOES NOT OPERATE
  • CATOR NOT DISPLAYED ON MONITOR
  • ONE-TOUCH POWER MAXIMIZING FUNCTION IS NOT CANCELLED
  • ALARM DOES NOT SOUND DURING TRAVEL
  • ALARM DOES NOT STOP SOUNDING WHILE MACHINE IS STOPPED
  • HORN DOES NOT SOUND
  • HORN DOES NOT STOP SOUNDING
  • WHEN WIPER SWITCH IS OPERATED, WINDSHIELD WIPER DOES NOT OPERATE
  • ATTACHMENT HYDRAULIC CIRCUIT CANNOT BE CHANGED
  • KOMTRAX SYSTEM DOES NOT OPERATE NORMALLY
  • MACHINE PUSH-UP FUNCTION CANNOT BE CANCELED
  • MACHINE PUSH-UP FUNCTION DOES NOT OPERATE
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)10 topics
  • INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (H MODE)
  • SYSTEM CHART OF HYDRAULIC AND MECHANICAL SYSTEMS
  • FAILURE MODE AND CAUSE TABLE
  • ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT WORK
  • ALL WORK EQUIPMENT, SWING AND TRAVEL LACK SPEED AND POWER
  • FINE CONTROL PERFORMANCE OR RESPONSE IS POOR
  • UNUSUAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP
  • ENGINE SPEED DROPS LARGELY OR ENGINE STOPS
  • SPEED OR POWER OF BOOM IS LOW
  • ARM SPEED OR POWER IS LOW
BUCKET SPEED OR POWER IS LOW
WORK EQUIPMENT DOES NOT MOVE IN SINGLE OPERATION
HYDRAULIC DRIFT OF BOOM IS LARGE
HYDRAULIC DRIFT OF ARM IS LARGE
HYDRAULIC DRIFT OF BUCKET IS LARGE1 topic
  • MENT MOVES
TIME LAG OF WORK EQUIPMENT IS LARGE
ONE-TOUCH POWER MAXIMIZING FUNCTION DOES NOT OPERATE
MACHINE PUSH-UP FUNCTION DOES NOT OPERATE
ATTACHMENT CIRCUIT CANNOT BE CHANGED
OIL FLOW IN ATTACHMENT CIRCUIT CANNOT BE CHANGED1 topic
  • MOVES SLOWER
MACHINE DOES NOT TRAVEL STRAIGHT
MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW
TRAVEL SPEED IS LOW
ONE OF TRACKS DOES NOT RUN
TRAVEL SPEED DOES NOT CHANGE, OR TRAVEL SPEED IS TOO SLOW OR FAST
UPPER STRUCTURE DOES NOT SWING BOTH TO THE RIGHT AND LEFT
SWINGS ONLY IN ONE DIRECTION4 topics
  • LEFT)
  • ONE DIRECTION
  • RIGHT AND LEFT)
  • DIRECTION EITHER RIGHT OR LEFT)
SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWINGING
FAN SPEED IS ABNORMAL (TOO HIGH OR LOW, OR STATIONARY)
UNUSUAL NOISE IS HEARD FROM AROUND FAN
TROUBLESHOOTING OF ENGINE (S-MODE)
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (S MODE)
ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT1 topic
  • 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
KDPF GETS CLOGGED IN A SHORT TIME
ENGINE OIL CONSUMPTION IS EXCESSIVE
OIL BECOMES CONTAMINATED QUICKLY
FUEL CONSUMPTION IS EXCESSIVE13 topics
  • 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 ASSEMBLY23 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 FUEL DOSER 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 ALTERNATOR BELT
  • REMOVE AND INSTALL RADIATOR ASSEMBLY
  • REMOVE AND INSTALL COOLING FAN AND FAN MOTOR ASSEMBLY
  • REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY
  • REMOVE AND INSTALL AFTERCOOLER ASSEMBLY
  • REMOVE AND INSTALL ENGINE AND MAIN 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 FUEL TANK ASSEMBLY
  • REMOVE AND INSTALL AdBlue/DEF TANK ASSEMBLY
  • REMOVE AND INSTALL AdBlue/DEF TANK SENSOR FLANGE ASSEMBLY

Inside this manual

Real pages from this service manual (2,765 pages). Open the sample pages (PDF, 1074 KB)

Sample pages from the Komatsu PC490LC-11 with 6D125E-7 Engine Hydraulic Excavator Service Manual: Specifications, Troubleshooting, Diagram, Color page, Color page, Foldout diagram
  • Specifications, page 407: PILOT CIRCUIT ACCUMULATOR
  • Troubleshooting, page 1,457: FAILURE CODE [CA4768]
  • Diagram, page 2,675: INFORMATION DESCRIBED IN TROUBLESHOOTING TA-
  • Color page, page 153: 6: Battery
  • Color page, page 435: 18:Control valve
  • Foldout diagram, page 2,730: ELECTRICAL CIRCUIT DIAGRAM (1/8)

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, 2,765 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 PC490LC-11Operation & Maintenance Manual · CEAM028104 · $69.63Komatsu PC490LC-11Operation & Maintenance Manual · TEN00657-02 · $69.85Komatsu PC490LC-11Operation & Maintenance Manual · TEN00695-00 · $69.89Komatsu PC490LC-11Operation & Maintenance Manual · TEN00771-00 · $69.63Komatsu PC490LC-11Service Manual · SEN06494-05 · $279.61Komatsu PC490LCi-11 with 6D125E-7 EngineService Manual · CEBM031500 · $369.89Komatsu WA470-8 with 6D125E-7 EngineService Manual · CEBM030000 · $339.89

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).