Komatsu PC500LC-10R Shop Manual YEBM202200

Data Size: 111.91 MB 
File Type: PDF 
Language: English 
Manufacturer: Komatsu 
Applicable Machine: Hydraulic Excavator 
Document: Shop Manual, Error Code, Electrical Schematic, Hydraulic Schematic 
Machine Model: Komatsu PC500LC-10R Hydraulic Excavator 
Serial Number: 100001 and up, DBCN0001 and up 
Book Number: YEBM202200 
Page: 2532 Pages

List Contents:

00 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 
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 
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH HOUSING TO ROTATE HOW TO READ ELECTRICAL WIRE CODE 
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD 
STANDARD TIGHTENING TORQUE TABLE 
CONVERSION TABLE 
01 SPECIFICATIONS 
CONTENTS 
ABBREVIATION LIST 
SPECIFICATIONS 
SPECIFICATION DRAWING 
WORKING RANGE DRAWINGS 
SPECIFICATIONS 
WEIGHT TABLE 
TABLE OF FUEL, COOLANT, AND LUBRICANTS 
10 STRUCTURE AND FUNCTION 
CONTENTS 
ABBREVIATION LIST 
BOOT-UP SYSTEM 
LAYOUT DRAWING OF BOOT-UP SYSTEM 
SYSTEM OPERATING LAMP SYSTEM 
BATTERY DISCONNECT SWITCH 
ENGINE SYSTEM 
LAYOUT DRAWING OF ENGINE SYSTEM 
ENGINE CONTROL SYSTEM 
AUTO-DECELERATION SYSTEM 
ENGINE AUTOMATIC WARM-UP SYSTEM 
OVERHEAT PREVENTION SYSTEM 
TURBOCHARGER PROTECTION SYSTEM 
AUTOMATIC IDLE STOP SYSTEM 
COMPONENT PARTS OF ENGINE SYSTEM 
COOLING SYSTEM 
LAYOUT DRAWING OF COOLING SYSTEM 
FAN SPEED CONTROL SYSTEM OF FAN CLUTCH 
ENGINE OUTPUT CONTROL SYSTEM OF FAN CLUTCH 
COMPONENT PARTS OF COOLING SYSTEM 
CONTROL SYSTEM 
LAYOUT DRAWING OF CONTROL SYSTEM 
MACHINE MONITOR SYSTEM 
KOMTRAX SYSTEM 
COMPONENT PARTS OF CONTROL SYSTEM 
HYDRAULIC SYSTEM 
LAYOUT DRAWING OF HYDRAULIC SYSTEM 
CLSS 
ENGINE AND PUMP COMBINED CONTROL SYSTEM 
PUMP AND VALVE CONTROL SYSTEM 
COMPONENT PARTS OF HYDRAULIC SYSTEM 
WORK EQUIPMENT SYSTEM 
LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM 
ONE-TOUCH 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 SYSTEM 
LAYOUT DRAWING OF SWING SYSTEM 
SWING CONTROL SYSTEM DIAGRAM 
COMPONENT PARTS OF SWING SYSTEM 
TRAVEL SYSTEM 
LAYOUT DRAWING OF TRAVEL SYSTEM 
TRAVEL CONTROL SYSTEM DIAGRAM 
COMPONENT PARTS OF TRAVEL SYSTEM 
UNDERCARRIAGE AND FRAME 
LAYOUT DRAWING OF UNDERCARRIAGE 
WORK EQUIPMENT 
STRUCTURE OF WORK EQUIPMENT 
FUNCTION OF WORK EQUIPMENT 
WORK EQUIPMENT CLEARANCE ADJUSTMENT SHIM 
BUCKET CLEARANCE ADJUSTMENT SHIM 
CAB AND ITS ATTACHMENTS 
CAB 
CAB MOUNT 
CAB TIPPING STOPPER 
20 STANDARD VALUE TABLE 
CONTENTS 
ABBREVIATION LIST 
STANDARD VALUE TABLE FOR ENGINE 
STANDARD VALUE TABLE FOR ENGINE: PC500LC-10R 
STANDARD VALUE TABLE FOR MACHINE 
STANDARD VALUE TABLE FOR MACHINE: PC500LC-10R 
MACHINE POSTURE AND PROCEDURE FOR MEASURING PERFORMANCE 
30 TESTING AND ADJUSTING 
CONTENTS 
ABBREVIATION LIST 
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 TEMPERATURE 
TEST EXHAUST GAS COLOR 
TEST AND ADJUST VALVE CLEARANCE 
TEST COMPRESSION PRESSURE 
TEST BLOWBY PRESSURE 
TEST ENGINE 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 FAN BELT 
TEST ALTERNATOR BELT 
TEST AUTOMATIC TENSIONER 
TEST COOLING FAN SPEED 
POWER TRAIN 
TEST SWING CIRCLE BEARING CLEARANCE 
UNDERCARRIAGE AND FRAME 
TEST AND ADJUST TRACK TENSION 
HYDRAULIC SYSTEM 
RELEASE REMAINING PRESSURE FROM HYDRAULIC SYSTEM 
TEST AND ADJUST OIL PRESSURE IN WORK EQUIPMENT, SWING, AND TRAVEL CIRCUITS 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 THE PARTS CAUSING HYDRAULIC DRIFT IN WORK EQUIPMENT 
TEST OIL LEAKAGE 
BLEED AIR FROM HYDRAULIC CIRCUIT 
TEST AND CHARGE ACCUMULATOR (MANUFACTURED BY HYDAC) NITROGEN GAS PRESSURE FOR ATTACHMENT (LOW PRESSURE SIDE) 
TEST AND CHARGE ACCUMULATOR NITROGEN GAS PRESSURE FOR ATTACHMENT (HIGH 
PRESSURE SIDE) 
REPLACE ACCUMULATOR BLADDER ON HIGH PRESSURE SIDE FOR ATTACHMENT PIPING CAB AND ITS ATTACHMENTS 
TEST CAB TIPPING STOPPER 
METHOD FOR ADJUSTING MIRRORS 
ELECTRICAL SYSTEM 
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 
Pm CLINIC 
Pm CLINIC SERVICE 
40 TROUBLESHOOTING 
CONTENTS 
ABBREVIATION LIST 
RELATED INFORMATION ON TROUBLESHOOTING 
GENERAL TROUBLESHOOTING POINTS 
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 
TROUBLESHOOTING METHOD FOR OPEN CIRCUIT IN WIRING HARNESS OF PRESSURE SENSOR SYSTEM 
CONNECTOR AND WIRING HARNESS IDENTIFICATION TABLE 
CONNECTOR LAYOUT 
CONNECTOR CONTACT IDENTIFICATION 
T-BRANCH BOX AND T-BRANCH ADAPTER TABLE 
FUSE LOCATION TABLE 
FUSE LOCATION TABLE 
PRECAUTIONS FOR CLEANING AND REPLACING KDPF (KCSF and KDOC) 
PREPARATION OF SHORT CIRCUIT ELECTRICAL CONNECTOR (FOR FAILURE CODES [CA1883 
AND [CA3135]) 
FAILURE CODES TABLE 
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE) 
FAILURE CODE [602KNX] 
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 [A900FR] 
FAILURE CODE [A900N6] 
FAILURE CODE [A900NY] 
FAILURE CODE [AA10NX] 
FAILURE CODE [AB00KE] 
FAILURE CODE [B@BAZG] 
FAILURE CODE [B@BAZK] 
FAILURE CODE [B@BCNS] 
FAILURE CODE [B@BCQA] 
FAILURE CODE [B@BCZK] 
FAILURE CODE [CA111] 
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] 
PROCEDURE FOR TESTING AND TROUBLESHOOTING 
SYMPTOMS OF FAILURE AND TROUBLESHOOTING NUMBERS 
INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE 
TROUBLESHOOTING METHOD FOR OPEN CIRCUIT IN WIRING HARNESS OF PRESSURE SENSOR SYSTEM 
CONNECTOR AND WIRING HARNESS IDENTIFICATION TABLE 
CONNECTOR LAYOUT 
CONNECTOR CONTACT IDENTIFICATION 
T-BRANCH BOX AND T-BRANCH ADAPTER TABLE 
FUSE LOCATION TABLE 
FUSE LOCATION TABLE 
PRECAUTIONS FOR CLEANING AND REPLACING KDPF (KCSF and KDOC) 
PREPARATION OF SHORT CIRCUIT ELECTRICAL CONNECTOR (FOR FAILURE CODES [CA1883 
AND [CA3135]) 
FAILURE CODES TABLE 
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE) 
FAILURE CODE [602KNX] 
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 [A900FR] 
FAILURE CODE [A900N6] 
FAILURE CODE [A900NY] 
FAILURE CODE [AA10NX] 
FAILURE CODE [AB00KE] 
FAILURE CODE [B@BAZG] 
FAILURE CODE [B@BAZK] 
FAILURE CODE [B@BCNS] 
FAILURE CODE [B@BCQA] 
FAILURE CODE [B@BCZK] 
FAILURE CODE [CA111] 
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 [CA263] 
FAILURE CODE [CA265] 
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 [CA342] 
FAILURE CODE [CA351] 
FAILURE CODE [CA352] 
FAILURE CODE [CA386] 
FAILURE CODE [CA441] 
FAILURE CODE [CA442] 
FAILURE CODE [CA449] 
FAILURE CODE [CA451] 
FAILURE CODE [CA452] 
FAILURE CODE [CA553] 
FAILURE CODE [CA554] 
FAILURE CODE [CA559] 
FAILURE CODE [CA689] 
FAILURE CODE [CA731] 
FAILURE CODE [CA757] 
FAILURE CODE [CA778] 
FAILURE CODE [CA2185] 
FAILURE CODE [CA2186] 
FAILURE CODE [CA2249] 
FAILURE CODE [CA2555] 
FAILURE CODE [CA2556] 
FAILURE CODE [D110KB] 
FAILURE CODE [D19JKZ] 
FAILURE CODE [D1N0KA] 
FAILURE CODE [D1N0KB] 
FAILURE CODE [D1N0KY] 
FAILURE CODE [D811MC] 
FAILURE CODE [D8ALKA] 
FAILURE CODE [D8ALKB] 
FAILURE CODE [D8AQKR] 
FAILURE CODE [DA20MC] 
FAILURE CODE [DA22KK] 
FAILURE CODE [DA25KP] 
FAILURE CODE [DA26KP] 
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 [DDNRKA] 
FAILURE CODE [DDNRKY] 
FAILURE CODE [DDNS00] 
FAILURE CODE [DDPAKA] 
FAILURE CODE [DGH2KA] 
FAILURE CODE [DGH2KB] 
FAILURE CODE [DHA4KA] 
FAILURE CODE [DHE5MA] 
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] 
FAILURE CODE [DJG1KX] 
FAILURE CODE [DKR2MA] 
FAILURE CODE [DKR2NX] 
FAILURE CODE [DKULKA] 
FAILURE CODE [DKULKB] 
FAILURE CODE [DKULKY] 
FAILURE CODE [DLM5KA] 
FAILURE CODE [DLM5MB] 
FAILURE CODE [DR21KX] 
FAILURE CODE [DR31KX] 
FAILURE CODE [DUMBKA] 
FAILURE CODE [DUMBKB] 
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 [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 [DWN5KA] 
FAILURE CODE [DWN5KB] 
FAILURE CODE [DWN5KY] 
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 [DY20KA] 
FAILURE CODE [DY20MA] 
FAILURE CODE [DY2CKB] 
FAILURE CODE [DY2DKB] 
FAILURE CODE [DY2EKB] 
FAILURE CODE [F@BBZL] 
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE) 
E-1 ENGINE DOES NOT START (ENGINE DOES NOT CRANK) 
E-2 MANUAL PREHEATING SYSTEM DOES NOT WORK 
E-3 AUTOMATIC PREHEATING SYSTEM DOES NOT WORK 
E-4 WHILE PREHEATING IS WORKING, PREHEATING MONITOR DOES NOT LIGHT UP 
E-5 WHEN STARTING SWITCH IS TURNED TO ON POSITION, MACHINE MONITOR DISPLAYS 
NOTHING 
E-6 WHILE STARTING SWITCH IS TURNED TO ON POSITION (WITH ENGINE STOPPED), ENGINE OIL LEVEL MONITOR LIGHTS UP IN YELLOW 
E-7 WHILE STARTING SWITCH IS TURNED TO ON POSITION (WITH ENGINE STOPPED), RADIATOR COOLANT LEVEL MONITOR LIGHTS UP IN YELLOW 
E-8 ENGINE COOLANT TEMPERATURE MONITOR LIGHTS UP IN WHITE WHILE ENGINE IS RUNNING 
E-9 HYDRAULIC OIL TEMPERATURE MONITOR LIGHTS UP IN WHITE WHILE ENGINE IS RUNNING 
E-10 AIR CLEANER CLOGGING MONITOR LIGHTS UP IN YELLOW WHILE ENGINE IS RUNNING E-11 CHARGE LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 
E-12 FUEL LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 
E-13 WATER SEPARATOR MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 
E-14 ENGINE COOLANT TEMPERATURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 
E-15 ENGINE OIL PRESSURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 
E-16 HYDRAULIC OIL TEMPERATURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 
E-17 FUEL GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM OR MAXIMUM 
E-18 DISPLAY OF FUEL GAUGE DIFFERS FROM ACTUAL FUEL LEVEL 
E-19 ENGINE COOLANT TEMPERATURE GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM 
OR MAXIMUM 
E-20 DISPLAY OF ENGINE COOLANT TEMPERATURE GAUGE DIFFERS FROM ACTUAL COOLANT TEMPERATURE 
E-21 SOME AREAS OF MACHINE MONITOR SCREEN ARE NOT DISPLAYED 
E-22 HYDRAULIC OIL TEMPERATURE GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM OR 
MAXIMUM 
E-23 DISPLAY OF HYDRAULIC OIL TEMPERATURE GAUGE DIFFERS FROM ACTUAL OIL TEMPERATURE 
E-24 FUNCTION SWITCH DOES NOT OPERATE 
E-25 AUTOMATIC WARM-UP SYSTEM DOES NOT WORK (IN COLD WEATHER) 
E-26 WHEN AUTO-DECELERATOR SWITCH IS OPERATED, AUTO-DECELERATOR MONITOR 
DOES NOT LIGHT UP OR DOES NOT GO OFF 
E-27 AUTO-DECELERATOR IS NOT OPERATED OR CANCELED WITH LEVER 
E-28 WHEN WORKING MODE SWITCH IS OPERATED, WORKING MODE SELECTION SCREEN IS 
NOT DISPLAYED 
E-29 WHEN WORKING MODE IS CHANGED, SETTING OF ENGINE AND HYDRAULIC PUMP IS 
NOT CHANGED 
E-30 WHEN TRAVEL SPEED SWITCH IS OPERATED, TRAVEL SPEED MONITOR DOES NOT 
CHANGE 
E-31 WHEN TRAVEL SPEED SELECTION IS CHANGED, ACTUAL TRAVEL SPEED DOES NOT 
CHANGE 
E-32 SERVICE METER IS NOT DISPLAYED, WHILE STARTING SWITCH IS IN OFF POSITION E-33 SERVICE MODE CANNOT BE SELECTED 
E-34 ALL OF WORK EQUIPMENTS, SWING, AND TRAVEL MECHANISM DO NOT MOVE 
E-35 ALL OF WORK EQUIPMENT, SWING, AND TRAVEL MECHANISM DO NOT LOCK 
E-36 WHEN SWING BRAKE CANCEL SWITCH IS SET TO CANCEL POSITION, MACHINE CANNOT 
SWING 
E-37 WHEN SWING BRAKE CANCEL SWITCH IS SET TO NORMAL POSITION, SWING HOLDING 
BRAKE DOES NOT OPERATE 
E-38 ONE-TOUCH POWER MAXIMIZING FUNCTION DOES NOT OPERATE PROPERLY, OR INDICATOR NOT DISPLAYED ON MONITOR 
E-39 ONE-TOUCH POWER MAXIMIZING FUNCTION IS NOT CANCELLED 
E-40 HORN DOES NOT SOUND 
E-41 HORN DOES NOT STOP SOUNDING 
E-42 ALARM DOES NOT SOUND DURING TRAVEL 
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE) 
H-1 ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT WORK 
H-2 ALL WORK EQUIPMENT, SWING AND TRAVEL LACK SPEED AND POWER 
H-3 FINE CONTROL PERFORMANCE OR RESPONSE IS POOR 
H-4 ENGINE SPEED DROPS LARGELY OR ENGINE STOPS 
H-5 WHEN SINGLE WORK EQUIPMENT IS RELIEVED HYDRAULICALLY, OTHER WORK EQUIPMENT MOVES 
H-6 WORK EQUIPMENT DOES NOT MOVE IN SINGLE OPERATION 
H-7 TIME LAG OF WORK EQUIPMENT IS LARGE 
H-8 ONE-TOUCH POWER MAXIMIZING FUNCTION DOES NOT OPERATE 
H-9 MACHINE PUSH-UP FUNCTION DOES NOT OPERATE 
H-10 ATTACHMENT CIRCUIT CANNOT BE CHANGED 
H-11 OIL FLOW IN ATTACHMENT CIRCUIT CANNOT BE CHANGED 
H-12 IN COMBINED OPERATION OF WORK EQUIPMENT, EQUIPMENT HAVING HEAVIER LOAD 
MOVES SLOWER 
H-13 IN COMBINED OPERATION OF SWING AND TRAVEL, TRAVEL SPEED DROPS LARGELY H-14 IN COMBINED OPERATION OF SWING AND BOOM RAISE, BOOM RISING SPEED IS LOW H-15 MACHINE DOES NOT TRAVEL STRAIGHT 
H-16 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW 
H-17 TRAVEL SPEED IS LOW 
H-18 ONE OF TRACKS DOES NOT RUN 
H-19 TRAVEL SPEED DOES NOT CHANGE, OR TRAVEL SPEED IS TOO SLOW OR FAST 
H-20 UPPER STRUCTURE DOES NOT SWING BOTH TO THE RIGHT AND LEFT 
H-21 SWINGS ONLY IN ONE DIRECTION 
H-22 SWING ACCELERATION OR SWING SPEED IS LOW IN BOTH DIRECTIONS (RIGHT AND 
LEFT) 
H-23 SWING ACCELERATION PERFORMANCE IS POOR OR SWING SPEED IS SLOW IN ONLY 
ONE DIRECTION 
H-24 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (BOTH 
RIGHT AND LEFT) 
H-25 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (ONLY ONE 
DIRECTION EITHER RIGHT OR LEFT) 
H-26 SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWINGING 
H-27 LARGE UNUSUAL NOISE IS HEARD WHEN UPPER STRUCTURE STOPS SWINGING 
H-28 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS APPLIED) 
H-29 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS RELEASED) H-30 FAN SPEED IS ABNORMAL (TOO HIGH OR LOW, OR STATIONARY) 
H-31 UNUSUAL NOISE IS HEARD FROM AROUND FAN 
H-32 UNUSUAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP 
H-33 SPEED OR POWER OF BOOM IS LOW 
H-34 ARM SPEED OR POWER IS LOW 
H-35 BUCKET SPEED OR POWER IS LOW 
H-36 HYDRAULIC DRIFT OF BOOM IS LARGE 
H-37 HYDRAULIC DRIFT OF ARM IS LARGE 
H-38 HYDRAULIC DRIFT OF BUCKET IS LARGE 
TROUBLESHOOTING OF ENGINE (S-MODE) 
S-1 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION S-2 ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT 
S-3 FUEL IS BEING INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS 
BUT DOES NOT START) 
S-4 ENGINE STARTABILITY IS POOR 
S-5 ENGINE DOES NOT PICK UP SMOOTHLY 
S-6 ENGINE STOPS DURING OPERATION 
S-7 ENGINE RUNS ROUGH OR IS UNSTABLE 
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE) 
H-1 ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT WORK 
H-2 ALL WORK EQUIPMENT, SWING AND TRAVEL LACK SPEED AND POWER 
H-3 FINE CONTROL PERFORMANCE OR RESPONSE IS POOR 
H-4 ENGINE SPEED DROPS LARGELY OR ENGINE STOPS 
H-5 WHEN SINGLE WORK EQUIPMENT IS RELIEVED HYDRAULICALLY, OTHER WORK EQUIPMENT MOVES 
H-6 WORK EQUIPMENT DOES NOT MOVE IN SINGLE OPERATION 
H-7 TIME LAG OF WORK EQUIPMENT IS LARGE 
H-8 ONE-TOUCH POWER MAXIMIZING FUNCTION DOES NOT OPERATE 
H-9 MACHINE PUSH-UP FUNCTION DOES NOT OPERATE 
H-10 ATTACHMENT CIRCUIT CANNOT BE CHANGED 
H-11 OIL FLOW IN ATTACHMENT CIRCUIT CANNOT BE CHANGED 
H-12 IN COMBINED OPERATION OF WORK EQUIPMENT, EQUIPMENT HAVING HEAVIER LOAD 
MOVES SLOWER 
H-13 IN COMBINED OPERATION OF SWING AND TRAVEL, TRAVEL SPEED DROPS LARGELY H-14 IN COMBINED OPERATION OF SWING AND BOOM RAISE, BOOM RISING SPEED IS LOW H-15 MACHINE DOES NOT TRAVEL STRAIGHT 
H-16 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW 
H-17 TRAVEL SPEED IS LOW 
H-18 ONE OF TRACKS DOES NOT RUN 
H-19 TRAVEL SPEED DOES NOT CHANGE, OR TRAVEL SPEED IS TOO SLOW OR FAST 
H-20 UPPER STRUCTURE DOES NOT SWING BOTH TO THE RIGHT AND LEFT 
H-21 SWINGS ONLY IN ONE DIRECTION 
H-22 SWING ACCELERATION OR SWING SPEED IS LOW IN BOTH DIRECTIONS (RIGHT AND 
LEFT) 
H-23 SWING ACCELERATION PERFORMANCE IS POOR OR SWING SPEED IS SLOW IN ONLY 
ONE DIRECTION 
H-24 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (BOTH 
RIGHT AND LEFT) 
H-25 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (ONLY ONE 
DIRECTION EITHER RIGHT OR LEFT) 
H-26 SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWINGING 
H-27 LARGE UNUSUAL NOISE IS HEARD WHEN UPPER STRUCTURE STOPS SWINGING 
H-28 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS APPLIED) 
H-29 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS RELEASED) H-30 FAN SPEED IS ABNORMAL (TOO HIGH OR LOW, OR STATIONARY) 
H-31 UNUSUAL NOISE IS HEARD FROM AROUND FAN 
H-32 UNUSUAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP 
H-33 SPEED OR POWER OF BOOM IS LOW 
H-34 ARM SPEED OR POWER IS LOW 
H-35 BUCKET SPEED OR POWER IS LOW 
H-36 HYDRAULIC DRIFT OF BOOM IS LARGE 
H-37 HYDRAULIC DRIFT OF ARM IS LARGE 
H-38 HYDRAULIC DRIFT OF BUCKET IS LARGE 
TROUBLESHOOTING OF ENGINE (S-MODE) 
S-1 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION S-2 ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT 
S-3 FUEL IS BEING INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS 
BUT DOES NOT START) 
S-4 ENGINE STARTABILITY IS POOR 
S-5 ENGINE DOES NOT PICK UP SMOOTHLY 
S-6 ENGINE STOPS DURING OPERATION 
S-7 ENGINE RUNS ROUGH OR IS UNSTABLE 
S-8 ENGINE LACKS POWER 
S-9 EXHAUST IS BLACK (INCOMPLETE COMBUSTION) 
S-10 ENGINE OIL CONSUMPTION IS EXCESSIVE 
S-11 OIL BECOMES CONTAMINATED QUICKLY 
S-12 FUEL CONSUMPTION IS EXCESSIVE 
S-13 OIL IS IN COOLANT (OR COOLANT SPURTS BACK OR COOLANT LEVEL GOES DOWN) S-14 OIL PRESSURE DROPS 
S-15 FUEL MIXES INTO ENGINE OIL 
S-16 WATER MIXES INTO ENGINE OIL (MILKY) 
S-17 COOLANT TEMPERATURE RISES TOO HIGH (OVERHEATING) 
S-18 UNUSUAL NOISE IS HEARD 
S-19 VIBRATION IS EXCESSIVE 
S-20 AIR CANNOT BE BLED FROM FUEL CIRCUIT 
50 DISASSEMBLY AND ASSEMBLY 
CONTENTS 
ABBREVIATION LIST 
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY 
HOW TO READ THIS MANUAL 
COATING MATERIALS LIST 
SPECIAL TOOLS LIST 
SKETCHES OF SPECIAL TOOLS 
ENGINE AND COOLING SYSTEM 
REMOVE AND INSTALL SUPPLY PUMP ASSEMBLY 
REMOVE AND INSTALL INJECTOR ASSEMBLY 
REMOVE AND INSTALL CYLINDER HEAD ASSEMBLY 
REMOVE AND INSTALL STARTING MOTOR ASSEMBLY 
METHOD FOR INSTALLING MUFFLER 
REMOVE AND INSTALL ALTERNATOR BELT 
REMOVE AND INSTALL FAN BELT 
REMOVE AND INSTALL RADIATOR ASSEMBLY 
REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY 
REMOVE AND INSTALL AFTERCOOLER ASSEMBLY 
REMOVE AND INSTALL FAN CLUTCH ASSEMBLY 
REMOVE AND INSTALL FAN 
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 AIR CLEANER ASSEMBLY 
REMOVE AND INSTALL AIR CONDITIONER CONDENSER ASSEMBLY 
POWER TRAIN 
REMOVE AND INSTALL TRAVEL MOTOR AND FINAL DRIVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE FINAL DRIVE ASSEMBLY 
REMOVE AND INSTALL SWING MOTOR AND SWING MACHINERY ASSEMBLY 
DISASSEMBLE AND ASSEMBLE SWING MACHINERY ASSEMBLY 
REMOVE AND INSTALL SWING CIRCLE ASSEMBLY 
UNDERCARRIAGE AND FRAME 
SEPARATION AND CONNECTION OF TRACK ASSEMBLY 
REMOVE AND INSTALL SPROCKET 
REMOVE AND INSTALL IDLER AND IDLER CUSHION ASSEMBLY 
DISASSEMBLE AND ASSEMBLE IDLER ASSEMBLY 
DISASSEMBLE AND ASSEMBLE OF IDLER CUSHION ASSEMBLY 
S-8 ENGINE LACKS POWER 
S-9 EXHAUST IS BLACK (INCOMPLETE COMBUSTION) 
S-10 ENGINE OIL CONSUMPTION IS EXCESSIVE 
S-11 OIL BECOMES CONTAMINATED QUICKLY 
S-12 FUEL CONSUMPTION IS EXCESSIVE 
S-13 OIL IS IN COOLANT (OR COOLANT SPURTS BACK OR COOLANT LEVEL GOES DOWN) S-14 OIL PRESSURE DROPS 
S-15 FUEL MIXES INTO ENGINE OIL 
S-16 WATER MIXES INTO ENGINE OIL (MILKY) 
S-17 COOLANT TEMPERATURE RISES TOO HIGH (OVERHEATING) 
S-18 UNUSUAL NOISE IS HEARD 
S-19 VIBRATION IS EXCESSIVE 
S-20 AIR CANNOT BE BLED FROM FUEL CIRCUIT 
50 DISASSEMBLY AND ASSEMBLY 
CONTENTS 
ABBREVIATION LIST 
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY 
HOW TO READ THIS MANUAL 
COATING MATERIALS LIST 
SPECIAL TOOLS LIST 
SKETCHES OF SPECIAL TOOLS 
ENGINE AND COOLING SYSTEM 
REMOVE AND INSTALL SUPPLY PUMP ASSEMBLY 
REMOVE AND INSTALL INJECTOR ASSEMBLY 
REMOVE AND INSTALL CYLINDER HEAD ASSEMBLY 
REMOVE AND INSTALL STARTING MOTOR ASSEMBLY 
METHOD FOR INSTALLING MUFFLER 
REMOVE AND INSTALL ALTERNATOR BELT 
REMOVE AND INSTALL FAN BELT 
REMOVE AND INSTALL RADIATOR ASSEMBLY 
REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY 
REMOVE AND INSTALL AFTERCOOLER ASSEMBLY 
REMOVE AND INSTALL FAN CLUTCH ASSEMBLY 
REMOVE AND INSTALL FAN 
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 AIR CLEANER ASSEMBLY 
REMOVE AND INSTALL AIR CONDITIONER CONDENSER ASSEMBLY 
POWER TRAIN 
REMOVE AND INSTALL TRAVEL MOTOR AND FINAL DRIVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE FINAL DRIVE ASSEMBLY 
REMOVE AND INSTALL SWING MOTOR AND SWING MACHINERY ASSEMBLY 
DISASSEMBLE AND ASSEMBLE SWING MACHINERY ASSEMBLY 
REMOVE AND INSTALL SWING CIRCLE ASSEMBLY 
UNDERCARRIAGE AND FRAME 
SEPARATION AND CONNECTION OF TRACK ASSEMBLY 
REMOVE AND INSTALL SPROCKET 
REMOVE AND INSTALL IDLER AND IDLER CUSHION ASSEMBLY 
DISASSEMBLE AND ASSEMBLE IDLER ASSEMBLY 
DISASSEMBLE AND ASSEMBLE OF IDLER CUSHION ASSEMBLY 
HYDRAULIC SYSTEM 
REMOVE AND INSTALL CENTER SWIVEL JOINT ASSEMBLY 
DISASSEMBLE AND ASSEMBLE CENTER SWIVEL JOINT ASSEMBLY 
REMOVE AND INSTALL HYDRAULIC TANK ASSEMBLY 
REMOVE AND INSTALL MAIN PUMP ASSEMBLY 
REMOVE AND INSTALL CONTROL VALVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE CONTROL VALVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT PPC VALVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE TRAVEL PPC VALVE ASSEMBLY 
WORK EQUIPMENT 
REMOVE AND INSTALL WORK EQUIPMENT ASSEMBLY 
DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT CYLINDER ASSEMBLY 
CAB AND ITS ATTACHMENTS 
REMOVE AND INSTALL OPERATOR'S CAB ASSEMBLY 
REMOVE AND INSTALL OPERATOR CAB GLASS (ADHERED GLASS) 
REMOVE AND INSTALL FRONT WINDOW ASSEMBLY 
REMOVE AND INSTALL FLOOR FRAME ASSEMBLY 
REMOVE AND INSTALL AIR CONDITIONER UNIT ASSEMBLY 
REMOVE AND INSTALL OPERATOR'S SEAT 
REMOVE AND INSTALL SEAT BELT 
REMOVE AND INSTALL FRONT WIPER ASSEMBLY 
ELECTRICAL SYSTEM 
REMOVE AND INSTALL ENGINE CONTROLLER ASSEMBLY 
REMOVE AND INSTALL PUMP CONTROLLER ASSEMBLY 
REMOVE AND INSTALL MACHINE MONITOR ASSEMBLY 
REMOVE AND INSTALL KOMTRAX TERMINAL ASSEMBLY 
60 MAINTENANCE STANDARD 
CONTENTS 
ABBREVIATION LIST 
ENGINE AND COOLING SYSTEM 
MAINTENANCE STANDARD OF ENGINE MOUNT 
MAINTENANCE STANDARD OF COOLING SYSTEM 
POWER TRAIN 
MAINTENANCE STANDARD OF SWING CIRCLE 
MAINTENANCE STANDARD OF SWING MACHINERY 
MAINTENANCE STANDARD OF FINAL DRIVE 
MAINTENANCE STANDARD OF SPROCKET 
MAINTENANCE STANDARD OF SPROCKET TOOTH PROFILE FULL-SCALE DRAWING 
UNDERCARRIAGE AND FRAME 
MAINTENANCE STANDARD OF TRACK FRAME AND IDLER CUSHION 
MAINTENANCE STANDARD OF IDLER 
MAINTENANCE STANDARD OF TRACK ROLLER 
MAINTENANCE STANDARD OF CARRIER ROLLER 
MAINTENANCE STANDARD OF TRACK SHOE 
MAINTENANCE STANDARD OF TRIPLE SHOE 
HYDRAULIC SYSTEM 
MAINTENANCE STANDARD OF MAIN PUMP 
MAINTENANCE STANDARD OF SWING MOTOR 
MAINTENANCE STANDARD OF TRAVEL MOTOR 
MAINTENANCE STANDARD OF CONTROL VALVE 
MAINTENANCE STANDARD OF WORK EQUIPMENT AND SWING PPC VALVE 
MAINTENANCE STANDARD OF TRAVEL PPC VALVE 
MAINTENANCE STANDARD OF 1ST-LINE ATTACHMENT PPC VALVE (WITH EPC VALVE) 
MAINTENANCE STANDARD OF SOLENOID VALVE 
MAINTENANCE STANDARD OF ATTACHMENT CIRCUIT SELECTOR VALVE 
MAINTENANCE STANDARD OF CENTER SWIVEL JOINT 
WORK EQUIPMENT 
MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE 
HYDRAULIC SYSTEM 
REMOVE AND INSTALL CENTER SWIVEL JOINT ASSEMBLY 
DISASSEMBLE AND ASSEMBLE CENTER SWIVEL JOINT ASSEMBLY 
REMOVE AND INSTALL HYDRAULIC TANK ASSEMBLY 
REMOVE AND INSTALL MAIN PUMP ASSEMBLY 
REMOVE AND INSTALL CONTROL VALVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE CONTROL VALVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT PPC VALVE ASSEMBLY 
DISASSEMBLE AND ASSEMBLE TRAVEL PPC VALVE ASSEMBLY 
WORK EQUIPMENT 
REMOVE AND INSTALL WORK EQUIPMENT ASSEMBLY 
DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT CYLINDER ASSEMBLY 
CAB AND ITS ATTACHMENTS 
REMOVE AND INSTALL OPERATOR'S CAB ASSEMBLY 
REMOVE AND INSTALL OPERATOR CAB GLASS (ADHERED GLASS) 
REMOVE AND INSTALL FRONT WINDOW ASSEMBLY 
REMOVE AND INSTALL FLOOR FRAME ASSEMBLY 
REMOVE AND INSTALL AIR CONDITIONER UNIT ASSEMBLY 
REMOVE AND INSTALL OPERATOR'S SEAT 
REMOVE AND INSTALL SEAT BELT 
REMOVE AND INSTALL FRONT WIPER ASSEMBLY 
ELECTRICAL SYSTEM 
REMOVE AND INSTALL ENGINE CONTROLLER ASSEMBLY 
REMOVE AND INSTALL PUMP CONTROLLER ASSEMBLY 
REMOVE AND INSTALL MACHINE MONITOR ASSEMBLY 
REMOVE AND INSTALL KOMTRAX TERMINAL ASSEMBLY 
60 MAINTENANCE STANDARD 
CONTENTS 
ABBREVIATION LIST 
ENGINE AND COOLING SYSTEM 
MAINTENANCE STANDARD OF ENGINE MOUNT 
MAINTENANCE STANDARD OF COOLING SYSTEM 
POWER TRAIN 
MAINTENANCE STANDARD OF SWING CIRCLE 
MAINTENANCE STANDARD OF SWING MACHINERY 
MAINTENANCE STANDARD OF FINAL DRIVE 
MAINTENANCE STANDARD OF SPROCKET 
MAINTENANCE STANDARD OF SPROCKET TOOTH PROFILE FULL-SCALE DRAWING 
UNDERCARRIAGE AND FRAME 
MAINTENANCE STANDARD OF TRACK FRAME AND IDLER CUSHION 
MAINTENANCE STANDARD OF IDLER 
MAINTENANCE STANDARD OF TRACK ROLLER 
MAINTENANCE STANDARD OF CARRIER ROLLER 
MAINTENANCE STANDARD OF TRACK SHOE 
MAINTENANCE STANDARD OF TRIPLE SHOE 
HYDRAULIC SYSTEM 
MAINTENANCE STANDARD OF MAIN PUMP 
MAINTENANCE STANDARD OF SWING MOTOR 
MAINTENANCE STANDARD OF TRAVEL MOTOR 
MAINTENANCE STANDARD OF CONTROL VALVE 
MAINTENANCE STANDARD OF WORK EQUIPMENT AND SWING PPC VALVE 
MAINTENANCE STANDARD OF TRAVEL PPC VALVE 
MAINTENANCE STANDARD OF 1ST-LINE ATTACHMENT PPC VALVE (WITH EPC VALVE) 
MAINTENANCE STANDARD OF SOLENOID VALVE 
MAINTENANCE STANDARD OF ATTACHMENT CIRCUIT SELECTOR VALVE 
MAINTENANCE STANDARD OF CENTER SWIVEL JOINT 
WORK EQUIPMENT 
MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE 
MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE (SE SPECIFICATION) 
MAINTENANCE STANDARD OF BOOM CYLINDER 
MAINTENANCE STANDARD OF ARM CYLINDER 
MAINTENANCE STANDARD OF BUCKET CYLINDER 
MAINTENANCE STANDARD OF BUCKET CYLINDER (SE SPECIFICATION) 
80 APPENDIX 
CONTENTS 
ABBREVIATION LIST 
AIR CONDITIONER SYSTEM 
PRECAUTIONS FOR REFRIGERANT 
AIR CONDITIONER COMPONENT 
SPECIFICATIONS OF AIR CONDITIONER 
CONFIGURATION AND FUNCTION OF REFRIGERATION CYCLE 
OUTLINE OF REFRIGERATION CYCLE 
COMPONENT PARTS OF AIR CONDITIONER SYSTEM 
AIR CONDITIONER UNIT 
COMPONENT PARTS OF AIR CONDITIONER UNIT 
AIR CONDITIONER CONTROLLER 
COMPRESSOR 
CONDENSER 
RECEIVER DRIER 
SENSORS FOR AIR CONDITIONER SYSTEM 
EXPLANATION OF PROCEDURE FOR TESTING AND TROUBLESHOOTING OF AIR CONDITIONER CIRCUIT DIAGRAM AND ARRANGEMENT OF CONNECTOR PINS FOR AIR CONDITIONER 
AIR CONDITIONER SYSTEM DIAGRAM 
INPUT AND OUTPUT SIGNALS OF AIR CONDITIONER CONTROLLER 
INSTALLATION LOCATIONS OF AIR CONDITIONER PARTS AND ARRANGEMENT OF CONNECTORS TESTING AIR LEAKAGE (DUCT) 
METHOD FOR TESTING AIR LEAKAGE (DUCT) 
TESTING AIR CONDITIONER USING SELF-DIAGNOSIS FUNCTION 
HOW TO OPEN THE ELECTRICAL SYSTEM ABNORMALITY RECORD SCREEN IN SERVICE MODE 
OF THE MACHINE MONITOR 
TEST VENT (MODE) CHANGEOVER 
METHOD FOR TESTING VENT (MODE) CHANGEOVER 
TESTING FRESH/RECIRC AIR CHANGEOVER 
METHOD FOR TESTING FRESH/RECIRC AIR CHANGEOVER 
TEST SUNLIGHT SENSOR 
METHOD FOR TESTING SUNLIGHT SENSOR 
TEST (DUAL) PRESSURE SWITCH FOR REFRIGERANT 
METHOD FOR TESTING (DUAL) PRESSURE SWITCH FOR REFRIGERANT 
TEST RELAYS 
METHOD FOR TESTING RELAYS 
AIR CONDITIONER TROUBLESHOOTING CHART 1 
AIR CONDITIONER TROUBLESHOOTING CHART 2 
INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE 
FAILURE CODE [879AKA] 
FAILURE CODE [879AKB] 
FAILURE CODE [879CKA] 
FAILURE CODE [879CKB] 
FAILURE CODE [879FMC] 
FAILURE CODE [879GKX] 
A-1 TROUBLESHOOTING FOR POWER SUPPLY SYSTEM (AIR CONDITIONER DOES NOT OPERATE) A-2 TROUBLESHOOTING FOR COMPRESSOR AND REFRIGERANT SYSTEM (AIR IS NOT COOLED) A-3 TROUBLESHOOTING FOR BLOWER MOTOR SYSTEM (NO AIR COMES OUT OR AIR FLOW IS 
ABNORMAL) 
A-4 TROUBLESHOOTING FOR FRESH/RECIRC AIR CHANGEOVER 
TROUBLESHOOTING USING GAUGE PRESSURE 
CONNECTION OF SERVICE TOOL 
METHOD FOR CONNECTING SERVICE TOOL 
PRECAUTIONS FOR DISCONNECTING AND CONNECTING HOSES AND TUBES IN AIR CONDITIONER PIPINGS 
HANDLE COMPRESSOR OIL 
90 CIRCUIT DIAGRAMS 
CONTENTS 
ABBREVIATION LIST 
HYDRAULIC CIRCUIT DIAGRAM 
SYMBOLS USED IN HYDRAULIC CIRCUIT DIAGRAM 
HYDRAULIC CIRCUIT DIAGRAM (WHEN BOOM IS RAISED) 
HYDRAULIC CIRCUIT DIAGRAM (WHEN UPPER STRUCTURE IS SWING TO LEFT) 
HYDRAULIC CIRCUIT DIAGRAM (WHEN BOOM IS RAISED AND UPPER STRUCTURE IS SWUNG 
TO LEFT) 
HYDRAULIC CIRCUIT DIAGRAM (1/2) 
HYDRAULIC CIRCUIT DIAGRAM (2/2) 
ELECTRICAL CIRCUIT DIAGRAM 
SYMBOLS USED IN ELECTRICAL CIRCUIT DIAGRAM 
ELECTRICAL CIRCUIT DIAGRAM (1/7) 
ELECTRICAL CIRCUIT DIAGRAM (2/7) 
ELECTRICAL CIRCUIT DIAGRAM (3/7) 
ELECTRICAL CIRCUIT DIAGRAM (4/7) 
ELECTRICAL CIRCUIT DIAGRAM (5/7) 
ELECTRICAL CIRCUIT DIAGRAM (6/7) 
ELECTRICAL CIRCUIT DIAGRAM (7/7) 
CONNECTOR AND WIRING HARNESS CHART 
CONNECTOR AND WIRING HARNESS CHART (1/15) 
CONNECTOR AND WIRING HARNESS CHART (2/15) 
CONNECTOR AND WIRING HARNESS CHART (3/15) 
CONNECTOR AND WIRING HARNESS CHART (4/15) 
CONNECTOR AND WIRING HARNESS CHART (5/15) 
CONNECTOR AND WIRING HARNESS CHART (6/15) 
CONNECTOR AND WIRING HARNESS CHART (7/15) 
CONNECTOR AND WIRING HARNESS CHART (8/15) 
CONNECTOR AND WIRING HARNESS CHART (9/15) 
CONNECTOR AND WIRING HARNESS CHART (10/15) 
CONNECTOR AND WIRING HARNESS CHART (11/15) 
CONNECTOR AND WIRING HARNESS CHART (12/15) 
CONNECTOR AND WIRING HARNESS CHART (13/15) 
CONNECTOR AND WIRING HARNESS CHART (14/15) 
CONNECTOR AND WIRING HARNESS CHART (15/15) 
INDEX