Komatsu PC900LC-11 PC950-11E0 PC950LC-11E0 Shop Manual SEN06968-02

Data Size: 126.10 MB 
File Type: PDF 
Language: English 
Manufacturer: Komatsu 
Applicable Machine: Hydraulic Excavator 
Document: Shop Manual, Error Code, Electrical Schematic, Hydraulic Schematic 
Machine Model: Komatsu PC900LC-11, PC950 -11E0, PC950LC-11E0 Hydraulic Excavator 
Serial Number: PC900LC-10013 and up, PC950-10026 and up, PC950LC-10026 and up 
Book Number: SEN06968-02 
Page: 4094 Pages

List Contents:

Index 
00 Index and Foreword 
Abbreviation List 
Foreword, Safety, Basic Information 
How to Read the Shop Manual 
Safety Notice for Operation 
Precautions to Prevent Fire 
Procedures If Fire Occurs 
Precautions When You Dispose of Waste Materials 
Procedures for Exhaust Gas Regulations 
Precautions for DEF 
Store DEF 
Precautions When You Handle Hydraulic Equipment 
Precautions When You Disconnect and Connect Pipings 
Precautions When You Handle Electrical Equipment 
Precautions When You Handle Fuel System Equipment 
Precautions When You Handle Intake System Equipment 
Practical Use of KOMTRAX 
Disconnect and Connect Push-Pull Type Coupler 
Precautions for Disconnection and Connection of Connectors 
How to Disconnect and Connect Deutsch Connector 
How to Disconnect and Connect Slide Lock Type Connector 
How to Disconnect and Connect Connector with Lock to Pull 
How to Disconnect and Connect Connector with Lock to Push 
How to Disconnect and Connect Connector with Housing to Rotate 
How to Read the Codes for Electric Cable 
Explanation of Terms for Maintenance Standard 
Standard Tightening Torque Table 
Conversion Table 
01 Specifications 
Table of Contents 
Specifications 
Specification Drawing 
Working Range Drawings 
Weight Table 
How to Use Fuel, Coolant and Lubricants by Ambient Temperature (PC900LC-11) 
How to Use Fuel, Coolant and Lubricants by Ambient Temperature ( PC950-11E0, PC950LC-11E0) 
10 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 
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 
Automatic Low Idle System 
Engine Automatic Warm-up System 
Overheat Prevention System 
Standard Value Table for Machine: PC900LC-11(SE) 
Standard Value Table for Machine: PC950-11E0 (EU Specifications) 
Standard Value Table for Machine: PC950-11E0 (Turkish Specifications) 
Standard Value Table for Machine: PC950-11E0 (SE) (EU Specifications) 
Standard Value Table for Machine: PC950-11E0 (SE) (Turkish Specifications) 
Standard Value Table for Machine: PC950LC-11E0 (EU Specifications) 
Standard Value Table for Machine: PC950LC-11E0 (Turkish Specifications) 
Standard Value Table for Machine: PC950LC-11E0 (SE) (EU Specifications) 
Standard Value Table for Machine: PC950LC-11E0 (SE) (Turkish Specifications) 
Machine Posture and Procedures to Measure Performance 
30 Testing and Adjusting 
Precautions Before Work 
Related Information on Testing and Adjusting 
Tools for Testing and Adjusting 
Sketch of Tools for Testing and Adjusting 
Engine and Cooling System 
Examine Engine Speed 
Examine Boost Pressure 
Examine Exhaust Gas Temperature 
Examine Mass Air Flow and Temperature Sensor 
Examine Exhaust Gas Color 
Examine and Adjust Valve Clearance 
Examine Compression Pressure 
Examine Blowby Pressure 
Examine Engine Oil Pressure 
Examine EGR Valve and VGT Oil Pressure 
Examine Fuel Pressure 
Examine Fuel Return Rate and Leakage 
Bleed Air from Fuel System 
Examine Fuel Circuit for Leakage 
Handle Cylinder Cut-out Mode Operation 
Handle No-Injection Cranking Operation 
Clean Fuel Doser 
Write Injector Compensation Value to Engine Controller 
Write Correction for Ash in Soot Accumulation to Engine Controller 
Examine SCR Related Functions 
Clean DEF Tank 
Power Train 
Examine Swing Circle Bearing Clearance 
Undercarriage and Frame 
Examine and Adjust Track Tension 
Hydraulic System 
Release Remained Pressure in Hydraulic Circuit 
Examine and Adjust Oil Pressure in Work Equipment, Swing, and Travel Circuits 
Examine and Adjust Oil Pressure in Control Circuit 
Examine Pump EPC Solenoid Valve Outlet Pressure 
Examine and Adjust Jet Sensor Differential Pressure 
Test and Adjust Swing Oil Pressure 
Bleed Air from Swing Pump 
Test Outlet Pressure of Swing Neutral Hold Valve EPC Solenoid Valve 
Open Swing Junction Valve When Swing Operation Cannot be Operated 
Examine Outlet Pressure of Solenoid Valve 
Examine Outlet Pressure of EPC Solenoid Valve 
Examine PPC Valve Outlet Pressure 
Adjust Play of Work Equipment and Swing PPC Valves 
Examine Travel Deviation 
Examine Fan Speed 
Examine Oil Pressure in Fan Pump Circuit 
Examine Fan Pump EPC Electric Current 
Examine Fan Pump EPC Solenoid Valve Outlet Pressure 
Examine Parts Which Cause Hydraulic Drift of Work Equipment 
Examine Oil Leakage 
Bleed Air from Hydraulic System 
CAB Related Parts 
Examine CAB Tipping Stopper 
How to Adjust Mirrors 
Electrical System 
Set and Operate Machine Monitor 
How to Start Up KOMTRAX System (Machine with Gateway Function Controller) 
How to Stop Use of KOMTRAX System (Machine with Gateway Function Controller) 
Adjust Rearview Camera Angle 
Adjust KomVision Camera Angle 
Adjust KomVision Related Function 
Handle Voltage Circuit of Engine Controller 
Handle Battery Disconnect Switch 
Examine Diodes 
Pm Clinic 
Pm Clinic Service 
40 Troubleshooting 
Related Information to Troubleshooting 
General Troubleshooting Points 
Troubleshooting Points for Aftertreatment System 
Sequence of Events in Troubleshooting 
Checks Before Troubleshooting 
Inspection Procedure Before Troubleshooting 
Test in Accordance with Testing Procedure 
Preparation for Troubleshooting of Electrical System 
Procedure for Troubleshooting 
Symptom and Troubleshooting Numbers 
Information Shown in Troubleshooting Table 
How to Diagnose Open Circuit of Hydraulic Pressure Sensor System Wiring Harness 
Connectors List (PC900LC-11) 
Connector Layout (PC900LC-11) 
Connectors List (PC950-11E0, PC950LC-11E0) 
Connector Layout (PC950-11E0, PC950LC-11E0) 
Connector Contact Connection Table 
T-Branch Box and T-Branch Adapter Table 
Fuse Location Table 
Precautions When You Clean and Replace KDPF (KCSF and KDOC) 
Prepare Short Circuit Electrical Connector (For Failure Codes [CA1883] and [CA3135]) 
Failure Code Table 
Troubleshooting by Failure Code (Display of Code) 
Failure Code [60D2NX] 
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 [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] 
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 [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 [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] 
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 [CA3741] 
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 [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 [D163KB] 
Failure Code [D195KA] 
Failure Code [D195KB] 
Failure Code [D19JKZ] 
Failure Code [D19UFS] 
Failure Code [D19UKA] 
Failure Code [D19UKB] 
Failure Code [D19UKY] 
Failure Code [D1ETKB] 
Failure Code [D1F0KA] 
Failure Code [D1F0KB] 
Failure Code [D1F0KY] 
Failure Code [D1S1KA] 
Failure Code [D1S1KB] 
Failure Code [D1S1KY] 
Failure Code [D811MC] 
Failure Code [D862KA] 
Failure Code [D8ALKA] 
Failure Code [D8ALKB] 
Failure Code [D8AQKR] 
Failure Code [D8ARKR] 
Failure Code [D8G1KT] 
Failure Code [D8G6KT] 
Failure Code [DA20MC] 
Failure Code [DA22KK] 
Failure Code [DA22KT] 
Failure Code [DA25KP] 
Failure Code [DA26KP] 
Failure Code [DA29KQ] 
Failure Code [DA2LKA] 
Failure Code [DA2LKB] 
Failure Code [DA2QKR] 
Failure Code [DA2RKR] 
Failure Code [DA7AMC] 
Failure Code [DA7BKK] 
Failure Code [DA7CKP] 
Failure Code [DA7DKP] 
Failure Code [DA7EKQ] 
Failure Code [DA7FKA] 
Failure Code [DA7FKB] 
Failure Code [DA7GKR] 
Failure Code [DA7HKR] 
Failure Code [DA7JKR] 
Failure Code [DAF0KM] 
Failure Code [DAF0KT] 
Failure Code [DAF0MB] 
Failure Code [DAF0MC] 
Failure Code [DAF3KK] 
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 [DBP0KM] 
Failure Code [DBP0KT] 
Failure Code [DBP5KB] 
Failure Code [DBP5KY] 
Failure Code [DBPQKR] 
Failure Code [DBZ0MC] 
Failure Code [DBZ2KK] 
Failure Code [DBZ2KT] 
Failure Code [DBZ5KP] 
Failure Code [DBZ6KP] 
Failure Code [DBZ6KP] (Counterweight remover specifications) 
Failure Code [DBZ9KQ] 
Failure Code [DBZLKA] 
Failure Code [DBZLKB] 
Failure Code [DBZQKR] 
Failure Code [DBZRKR] 
Failure Code [DDNRKA] 
Failure Code [DDNRKY] 
Failure Code [DDNS00] 
Failure Code [DGE5KB] 
Failure Code [DGH2KA] 
Failure Code [DGH2KB] 
Failure Code [DH25MA] 
Failure Code [DH26MA] 
Failure Code [DHA4KA] 
Failure Code [DHAAMA] 
Failure Code [DHACMA] 
Failure Code [DHF1MA] 
Failure Code [DHF2MA] 
Failure Code [DHF7L8] 
Failure Code [DHF7MA] 
Failure Code [DHF8L8] 
Failure Code [DHF8MA] 
Failure Code [DHHDMA] 
Failure Code [DHHDZG] 
Failure Code [DHHEMA] 
Failure Code [DHHFMA] 
Failure Code [DHPEMA] 
Failure Code [DHPFMA] 
Failure Code [DHPTMA] 
Failure Code [DHPUMA] 
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 [DHSVMA] 
Failure Code [DHVAL8] 
Failure Code [DHVAMA] 
Failure Code [DHVBL8] 
Failure Code [DHVBMA] 
Failure Code [DJS1MA] 
Failure Code [DKK0KB] 
Failure Code [DKK0MA] 
Failure Code [DKR0MA] 
Failure Code [DKR1MA] 
Failure Code [DKR2MA] 
Failure Code [DKR2NX] 
Failure Code [DKR3MA] 
Failure Code [DKR3NX] 
Failure Code [DKR5MA] 
Failure Code [DKR6MA] 
Failure Code [DKTKMA] 
Failure Code [DKTMMA] 
Failure Code [DKTNMA] 
Failure Code [DKTPMA] 
Failure Code [DKULKA] 
Failure Code [DKULKB] 
Failure Code [DKULKY] 
Failure Code [DKV5L8] 
Failure Code [DKV5MA] 
Failure Code [DKVEL8] 
Failure Code [DKVEMA] 
Failure Code [DKVFL8] 
Failure Code [DKVFMA] 
Failure Code [DKVGL8] 
Failure Code [DKVGMA] 
Failure Code [DKVHL8] 
Failure Code [DKVHMA] 
Failure Code [DKVJL8] 
Failure Code [DKVJMA] 
Failure Code [DLM3KA] 
Failure Code [DLM3KB] 
Failure Code [DLM3MB] 
Failure Code [DLM8KA] 
Failure Code [DLM8KB] 
Failure Code [DLM8MB] 
Failure Code [DLMCLC] 
Failure Code [DLMCMA] 
Failure Code [DR10KA] 
Failure Code [DR12KA] 
Failure Code [DR20KA] 
Failure Code [DR21KX] 
Failure Code [DR30KA] 
Failure Code [DR31KX] 
Failure Code [DR40KA] 
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 [DW7BKA] 
Failure Code [DW7BKB] 
Failure Code [DW7BKY] 
Failure Code [DW7HKA] 
Failure Code [DW7HKB] 
Failure Code [DW7HKY] 
Failure Code [DW91KA] 
Failure Code [DW91KB] 
Failure Code [DW91KY] 
Failure Code [DWK2KA] 
Failure Code [DWK2KB] 
Failure Code [DWK2KY] 
Failure Code [DWM1KA] 
Failure Code [DWM1KB] 
Failure Code [DWM1KY] 
Failure Code [DWN5KA] 
Failure Code [DWN5KB] 
Failure Code [DWNCKA] 
Failure Code [DWNCKB] 
Failure Code [DXAAKA] 
Failure Code [DXAAKA] (Counterweight Remover Specifications) 
Failure Code [DXAAKB] 
Failure Code [DXAAKB] (Counterweight Remover Specifications) 
Failure Code [DXABKA] 
Failure Code [DXABKB] 
Failure Code [DXACKA] 
Failure Code [DXACKB] 
Failure Code [DXACKY] 
Failure Code [DXACL8] 
Failure Code [DXADKA] 
Failure Code [F312KA] 
Failure Code [F312KB] 
Failure Code [F313KA] 
Failure Code [F313KB] 
Failure Code [F314KA] 
Failure Code [F314KB] 
Failure Code [F315KB] 
Failure Code [F315KY] 
Failure Code [F316KB] 
Failure Code [F316KY] 
Failure Code [F318KB] 
Failure Code [F318KY] 
Failure Code [F31AKB] 
Failure Code [F31AKY] 
Failure Code [F31BKB] 
Failure Code [F31BKY] 
Failure Code [F31CKB] 
Failure Code [F31CKY] 
Failure Code [F31DKB] 
Failure Code [F31DKY] 
Failure Code [F31EKB] 
Failure Code [F31EKY] 
Failure Code [LA10ZL] 
Failure Code [LA20ZL] 
Troubleshooting of Electrical System (E-Mode) 
E-1 Engine Does Not Start (Engine Does Not Crank) 
E-2 Manual Preheating System Does Not Operate 
E-3 Automatic Preheating System Does Not Operate 
E-4 While Preheating is in Operation, Preheating Monitor Does Not Come On 
E-5 When Starting Switch is Turned to ON Position, Machine Monitor Shows Nothing 
E-6 While Starting Switch is Turned to ON Position (with Engine Stopped), Engine Oil Level Monitor 
Comes On in Yellow 
E-7 While Starting Switch is Turned to ON Position (with Engine Stopped), Radiator Coolant Level 
Monitor Comes On in Yellow 
E-8 Engine Coolant Temperature Monitor Comes On in White While Engine is in Operation 
E-9 Hydraulic Oil Temperature Monitor Comes On in White While Engine is in Operation 
E-10 Air Cleaner Clogging Monitor Comes On in Yellow While Engine is in Operation 
E-11 Charge Level Monitor Comes On in Red While Engine is in Operation 
E-12 Fuel Level Monitor Comes On in Red While Engine is in Operation 
E-13 Engine Coolant Temperature Monitor Comes On in Red While Engine is in Operation 
E-14 Engine Oil Pressure Monitor Comes On in Red While Engine is in Operation 
E-15 Hydraulic Oil Temperature Monitor Comes On in Red While Engine is in Operation 
E-16 Fuel Gauge Does Not Move from Minimum or Maximum 
E-17 Display of Fuel Gauge is Different from Actual Fuel Level 
E-18 Coolant Temperature Gauge Display Does Not Move from Minimum or Maximum 
E-19 Display of Coolant Temperature Gauge is Different from Actual Coolant Temperature 
E-20 Hydraulic Oil Temperature Gauge Does Not Move from Minimum or Maximum 
E-21 Display of Hydraulic Oil Temperature Gauge is Different from Actual Oil Temperature 
E-22 Some Areas of Machine Monitor Screen are Not Shown 
E-23 Function Switch Does Not Operate 
E-24 Automatic Warm-up System Does Not Operate (in Cold Weather) 
E-25 Auto-Deceleration Monitor Does Not Come On or Go Out While Auto-Deceleration Switch is Operated 
E-26 Auto-Decelerator is Not Operated or Canceled with Lever 
E-27 Work Mode Selector Screen is Not Shown While Work Mode Switch is Operated 
E-28 When Working Mode is Changed, Setting of Engine and Hydraulic Pump is Not Changed 
E-29 Travel Speed Monitor Does Not Change While Travel Speed Switch is Operated 
E-30 Travel Speed Does Not Change Even When You Change Travel Speed 
E-6 While Starting Switch is Turned to ON Position (with Engine Stopped), Engine Oil Level 
E-7 While Starting Switch is Turned to ON Position (with Engine Stopped), Radiator Coolant 
E-31 Alarm Buzzer Does Not Stop 
E-32 Service Meter is Not Shown While Starting Switch is in OFF Position 
E-33 Service Mode Cannot be Selected 
E-34 All Work Equipment, Swing, Travel Do Not Operate 
E-35 All Work Equipment, Swing and Travel Do Not Operate (Counterweight remover specification) 
E-36 All Work Equipment, Swing, Travel Cannot be Locked 
E-37 All of Work Equipment, Swing, and Travel Mechanism Do Not Lock (Counterweight remover 
specification) 
E-38 Machine Does Not Swing While Swing Parking Brake Release Switch is Set to Release Position 
E-39 While Swing Parking Brake Release Switch is Turned on, Swing Brake is Not Operated 
E-40 Travel Alarm Does Not Operate During Travel 
E-41 Travel Alarm Does Not Stop When Machine Stops 
E-42 Horn Does Not Sound 
E-43 Horn Does Not Stop 
E-44 Wiper Monitor Does Not Come On or Go Out While Wiper Switch is Operated 
E-45 Windshield Wiper Does Not Operate When Wiper Switch is Operated 
E-46 When Window Washer Switch is Operated, Window Washer Does Not Operate 
E-47 Fuel Feed Pump Does Not Operate or Stop Automatically 
E-48 "Boom RAISE" is Not Shown Correctly with Monitoring Function 
E-49 "Boom LOWER" is Not Shown Correctly with Monitoring Function 
E-50 "Arm OUT" is Not Shown Correctly with Monitoring Function 
E-51 "Arm IN" is Not Shown Correctly with Monitoring Function 
E-52 Bucket DUMP is Not Shown Correctly with Monitoring Function 
E-53 Bucket CURL is Not Shown Correctly with Monitoring Function 
E-54 Swing is Not Shown Correctly with Monitoring Function 
E-55 "Right Travel" is Not Shown Correctly with Monitoring Function 
E-56 "Left Travel" is Not Shown Correctly with Monitoring Function 
E-57 KOMTRAX System Does Not Operate Correctly 
E-58 Machine Push-up Function Cannot be Canceled 
E-59 Machine Push-up Function Does Not Operate 
E-60 Step Light Does Not Come on 
E-61 Step Light Does Not Go out 
E-62 Boom Shockless Function Cannot be Canceled 
E-63 Boom Shockless Function Does Not Work 
E-64 Electric Grease Gun Does Not Work 
E-65 Electric Grease Gun Does Not Stop 
E-66 Screen Shows that Emergency Stop Button is Operated 
Troubleshooting for Hydraulic and Mechanical Systems (H Mode) 
H-1 All Work Equipment or Travel Does Not Operate 
H-2 All Work Equipment and Travel Speeds are Low or Power is Low 
H-3 Engine Speed Drops Largely or Engine Stops 
H-4 Unusual Noise is Heard from Around Work Equipment Pump and Swing Pump 
H-5 Boom RAISE Speed or Power is Low 
H-6 Boom LOWER Speed or Power is Low 
H-7 Boom LOWER Speed or Power is Low in Machine Push Up Mode 
H-8 Arm Speed or Power is Low 
H-9 Bucket Speed or Power is Low 
H-10 Boom Does Not Operate 
H-11 Arm Does Not Operate 
H-12 Bucket Does Not Operate 
H-13 Hydraulic Drift of Boom is Large 
H-14 Hydraulic Drift of Arm is Large 
H-15 Hydraulic Drift of Bucket is Large 
H-16 Time Lag of Boom is Large 
H-17 Time Lag of Arm is Large 
H-18 Time Lag of Bucket is Large 
H-19 Machine Unintentionally Turns to One Side When Machine Travels 
H-20 Travel Deviation is Large at Start of Travel Only When Travel Lever is Fully Moved 
H-21 Regardless of the Stroke of the Travel Lever, Travel Deviation is Large at Start of 
H-22 Travel Deviation is Large at Mixed Operation 
H-23 Travel Speed or Power is Low 
H-24 Only the One Side Track Can Operate (Machine Does Not Travel Forward or Reverse) 
H-25 Only the One Side Track Can Operate (Machine Can Travel Only Forward or Reverse) 
H-26 Travel Speed Does Not Change 
H-27 Upper Structure Does Not Swing in Two Directions of Right and Left 
H-28 Machine Swings Only in One Direction 
H-29 Swing Acceleration or Swing Speed is Low in Lateral Directions (Right and Left) 
H-30 Swing Acceleration Performance is Unsatisfactory or Swing Speed is Slow in Only One 
H-31 Upper Structure Overruns Too Much When It Stops Swing Operation (Right and Left) 
H-32 Upper Structure Speed is High When It Stops Swing Operation (on One Side) 
H-33 Shock is Large When Upper Structure Stops Swing Operation (Right and Left) 
H-34 Shock is Large When Upper Structure Starts and Stops Swing Operation 
H-35 Unusual Noise is Heard from Around Swing Pump or Motor 
H-36 Large Unusual Noise is Heard When Upper Structure Stops Swing Operation in Only One Direction 
H-37 Swing Drift of Swing is Large 
H-38 Fan Rotation is Abnormal (Such as Excessive Noise or Vibration of Fan, or Overheating) 
Troubleshooting of Engine (S-Mode) 
Information Shown in Troubleshooting Table (S-Mode) 
S-1 Engine Does Not Crank When Starting Switch is Turned to Start Position 
S-2 Engine Cranks but No Exhaust Smoke Comes Out 
S-3 Fuel is Injected but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start) 
S-4 Engine Startability is Unsatisfactory 
S-5 Engine Does Not Pick Up Smoothly 
S-6 Engine Stops During Operation 
S-7 Engine Runs Rough or is Not Stable 
S-8 Engine Lacks Power 
S-9 KDPF Becomes Clogged in a Short Time 
S-10 Engine Oil Consumption is Excessive 
S-11 Oil Becomes Dirty Quickly 
S-12 Fuel Consumption is Excessive 
S-13 Oil is in Coolant (or Coolant Spurts Back or Coolant 
S-14 Oil Pressure Drops 
S-15 Fuel Mixes Into Engine Oil 
S-16 Water Mixes Into Engine Oil (Milky) 
S-17 Coolant Temperature Increases Too High (Overheating) 
S-18 Unusual Noise is Heard 
S-19 Vibration is Excessive 
S-20 Air Cannot be Bled from Fuel Circuit 
S-21 Active Regeneration is Done Frequently 
S-22 Active Regeneration Continues Long 
S-23 White Smoke is Exhausted During Active Regeneration 
S-24 DEF Consumption is Excessive 
S-25 There is Unusual Smell (Irritating Odor) 
S-26 Foreign Materials Enter DEF (DEF Increases) 
50 Disassembly and Assembly 
Related Information on Disassembly and Assembly 
How to Read This Manual 
Coating Materials List 
Special Tool List 
Sketches of Special Tools 
Prepare 
Drain and Add Coolant 
Drain and Add Hydraulic Oil 
Drain and Add Fuel 
Collect and Refill Refrigerant 
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 Starter Assembly 
Remove and Install Alternator Belt 
Remove and Install Radiator Assembly 
Remove and Install Hydraulic Oil Cooler Assembly 
Remove and Install Aftercooler Assembly 
Remove and Install Cooler Assembly 
Remove and Install Cooling Fan Motor Assembly 
Remove and Install Engine, PTO, and Hydraulic 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 DEF Tank Assembly 
Remove and Install DEF Tank Sensor Flange Assembly 
Remove and Install DEF Tank Sensor 
Remove and Install DEF Tank Strainer 
Remove and Install DEF Tank Filler Port Filter 
Remove and Install KDPF Assembly 
Disassemble and Assemble KDPF Assembly 
Remove and Install SCR Assembly 
Remove and Install KDPF and SCR Assembly 
Remove and Install Bellows Pipe Assembly 
Remove and Install KCCV Assembly 
Remove and Install DEF Mixing Tube 
Remove and Install DEF Injector 
Remove and Install DEF Pump 
Remove and Install DEF Hose 
Remove and Install Air Cleaner Assembly 
Remove and Install Air Conditioner Compressor Assembly 
Remove and Install Air Conditioner Condenser Assembly 
Remove and Install PTO Assembly 
Disassemble and Assemble PTO Assembly 
Remove and Install Travel Motor and Final Drive Assembly 
Disassemble and Assemble Final Drive Assembly (PC900LC-11) 
Disassemble and Assemble Final Drive Assembly (PC950-11E0, PC950LC-11E0) 
Remove and Install Swing Motor and Swing Machinery Assembly 
Disassemble and Assemble Swing Machinery Assembly 
Remove and Install Swing Circle Assembly 
Disassemble and Assemble One Track Link Assembly in Field 
Separate and Connect Track Assembly 
Remove and Install Idler Assembly 
Remove and Install Idler Cushion Assembly 
Disassemble and Assemble Idler Assembly (PC900LC-11) 
Disassemble and Assemble Idler Assembly (PC950-11E0, PC950LC-11E0) 
Disassemble and Assemble Idler Cushion Assembly 
Remove and Install Track Roller Assembly (PC900LC-11) 
Remove and Install Track Roller Assembly (PC950-11E0, PC950LC-11E0) 
Remove and Install Carrier Roller Assembly 
Disassemble and Assemble Track Roller Assembly (PC900LC-11) 
Disassemble and Assemble Track Roller Assembly (PC950-11E0, PC950LC-11E0) 
Disassemble and Assemble Carrier Roller Assembly (PC900LC-11) 
Disassemble and Assemble Carrier Roller Assembly (PC950-11E0, PC950LC-11E0) 
Remove and Install Revolving Frame Assembly 
Remove and Install Counterweight Assembly 
Remove and Install Counterweight Remove Cylinder Assembly 
Remove and Install Center Swivel Joint Assembly 
Disassemble and Assemble Center Swivel Joint Assembly 
Remove and Install Hydraulic Tank Assembly 
Remove and Install Hydraulic Pump Assembly 
Remove and Install Control Valve Assembly 
Remove and Install Neutral Hold Valve Assembly 
Remove and Install Swing Motor Assembly 
Disassemble and Assemble Work Equipment PPC Valve Assembly 
Disassemble and Assemble Travel PPC Valve Assembly 
Disassemble and Assemble Grease Gun Assembly 
Work Equipment 
Remove and Install Boom Anti-drop Valve Assembly 
Remove and Install Arm Anti-Drop Valve Assembly 
Disassemble and Assemble Arm Anti-Drop Valve Assembly 
Remove and Install Bucket Cylinder Assembly 
Remove and Install Arm Cylinder Assembly 
Remove and Install Boom Cylinder Assembly 
Remove and Install Bucket Assembly 
Remove and Install Arm Assembly 
Remove and Install Boom Assembly 
Disassemble and Assemble Counterweight Remover Cylinder Assembly 
Disassemble and Assemble Boom Cylinder Assembly 
Disassemble and Assemble Bucket Cylinder Assembly 
Disassemble and Assemble Arm Cylinder Assembly 
Remove and Install Operator 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 Seat 
How to Remove and Install Seat Belt 
Remove and Install Front Wiper Assembly 
Remove and Install Engine Controller Assembly 
Remove and Install Pump Controller1 Assembly 
Remove and Install Pump Controller2 Assembly 
Remove and Install Pump Controller3 Assembly 
Remove and Install KomVision Controller Assembly 
Remove and Install Machine Monitor Assembly 
Remove and Install Mass Air Flow and Temperature Sensor 
Remove and Install KCCV Crankcase Pressure Sensor 
Remove and Install KDPF Temperature Sensor 
Remove and Install KDPF Differential Pressure Sensor 
Remove and Install SCR Temperature Sensor 
Remove and Install Ammonia Sensor 
Remove and Install SCR Outlet NOx Sensor 
Remove and Install KomVision Camera 
Remove and Install Gateway Function Controller Assembly 
60 Maintenance Standard 
Maintenance Standard for Engine Mount 
Maintenance Standard for PTO 
Maintenance Standard for Cooling System 
Maintenance Standard of Cooling Fan Pump of Oil Cooler 
Maintenance Standard of Cooling Fan Motor of Radiator 
Maintenance Standard of Cooling Fan Motor of Oil Cooler 
Maintenance Standard for Swing Circle 
Maintenance Standard for Swing Machinery 
Maintenance Standard for Final Drive (PC900LC-11) 
Maintenance Standard for Final Drive (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Sprocket (PC900LC-11) 
Maintenance Standard for Sprocket (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Sprocket Tooth Profile Full-Scale Drawing (PC900LC-11) 
Maintenance Standard for Sprocket Tooth Profile Full-Scale Drawing (PC950-11E0, PC950LC-11E0) 
Maintenance Standard of Track Frame and Idler Cushion (PC900LC-11) 
Maintenance Standard of Track Frame and Idler Cushion (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Idler (PC900LC-11) 
Maintenance Standard for Idler (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Track Roller (PC900LC-11) 
Maintenance Standard for Track Roller (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Carrier Roller (PC900LC-11) 
Maintenance Standard for Carrier Roller (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Track Shoes (PC900LC-11) 
Maintenance Standard for Track Shoes (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Double Shoes (PC900LC-11) 
Maintenance Standard for Double Shoes (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Main Pump 
Maintenance Standard of Swing Pump 
Maintenance Standard of Neutral Hold Valve 
Maintenance Standard of Charge Pump and Radiator Cooling Fan Pump 
Maintenance Standard for Swing Motor 
Maintenance Standard for Swing Junction Valve 
Maintenance Standard for Travel Motor (PC900LC-11) 
Maintenance Standard for Travel Motor (PC950-11E0, PC950LC-11E0) 
Maintenance Standard for Control Valve 
Maintenance Standard for Variable Back Pressure Valve 
Maintenance Standard for Counterweight Remover Cylinder 
Maintenance Standard of Boom Regeneration Valve 
Maintenance Standard of Lock Valve (Common to Boom Lock Valve and Arm Lock Valve) 
Maintenance Standard of Quick Return Valve 
Maintenance Standard for Work Equipment and Swing PPC Valve 
Maintenance Standard for Travel PPC Valve 
Maintenance Standard for Solenoid Valve 
Maintenance Standard for Center Swivel Joint 
Maintenance Standard for Arm Anti-Drop Valve 
Maintenance Standard for Work Equipment Linkage 
Maintenance Standard for Boom Cylinder 
Electrical Circuit Diagram (21/26) (PC950-11E0, PC950LC-11E0) 
Electrical Circuit Diagram (22/26) (PC950-11E0, PC950LC-11E0) 
Electrical Circuit Diagram (23/26) (PC950-11E0, PC950LC-11E0) 
Electrical Circuit Diagram (24/26) (PC950-11E0, PC950LC-11E0) 
Electrical Circuit Diagram (25/26) (PC950-11E0, PC950LC-11E0) 
Electrical Circuit Diagram (26/26) (PC950-11E0, PC950LC-11E0)