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Komatsu WA1200-6 WHEEL LOADER Shop Manual SEN05774-02 – PDF DOWNLOAD
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Komatsu WA1200-6 WHEEL LOADER Shop Manual SEN05774-02 – PDF DOWNLOAD
SERIAL NUMBERS 60004 and up
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Description
Komatsu WA1200-6 WHEEL LOADER Shop Manual SEN05774-02 – PDF DOWNLOAD
FILE DETAILS:
Komatsu WA1200-6 WHEEL LOADER Shop Manual SEN05774-02 – PDF DOWNLOAD
Language : English
Pages :181
Downloadable : Yes
File Type : PDF
DESCRIPTION:
Komatsu WA1200-6 WHEEL LOADER Shop Manual SEN05774-02 – PDF DOWNLOAD
SERIAL NUMBERS 60004 and up
Foreword 0-4
Before reading this manual 0-4
This shop manual describes only the different part from the standard machine (WA1200-6: S/N 60001 and up).
For the component that is not described in this manual, refer the shop manual for the standard machine(WA1200-6: S/N 60001 and up).
TABLE OF CONTENTS:
Komatsu WA1200-6 WHEEL LOADER Shop Manual SEN05774-02 – PDF DOWNLOAD
SERIAL NUMBERS 60004 and up
Cover 1
00 Index and foreword 5
Table of Contents 6
Foreword 8
Before reading this manual 7
01 Specification 9
Specification 11
Specification dimension drawing 11
Specifications 12
Weight table 15
Table of fuel, coolant and lubricants 17
10 Structure and function 19
Engine related items 21
Engine oil reserve system 21
Hydraulic system 24
Power ladder system 24
Electrical system 29
Power ladder controller 29
Rear view monitor system 38
Engine service monitor system 41
Parking brake circuit 43
Sensor 44
20 Standard value table 45
Standard value table 47
Standard value table for machine 47
Standard value table for electrical syst 48
30 Testing and adjusting 49
Testing and adjusting 51
Checking and adjustment of potentiomete 51
Ladder position calibration procedure 52
Procedure for testing diodes 54
40 Troubleshooting 55
General information on troubleshooting 58
Classification and procedures of troubleshooting 58
Failure codes table 59
Connector list and layout 61
Fuse locations 72
Troubleshooting by failure code 74
Failure code [D1EMKA] (Disconnection of parking brake interlock relay) 74
Failure code [D1EMKB] (Ground fault of parking brake interlock relay) 76
Failure code [D1EMKY] (Failure of parking brake interlock relay output: Hot short circuit) 78
Failure code [D1EPKA] (Disconnection of ladder drive pump rel 80
Failure code [D1EPKB] (Ground Fault of Ladder Drive Pump Relay Output 82
Failure code [D1EPKY] (Failure of ladder drive pump relay output: Hot short circuit) 84
Failure code [D1EQKY] (Failure of ladder external alarm relay output: Hot short circuit) 86
Failure code [D1EQKZ] (Ladder operation alarm relay output abnormality:Open circuit, ground fault) 88
Failure code [D1ERKB] (Ladder raise solenoid output ground fault) 90
Failure code [D1ERKZ] (Failure of ladder raise solenoid output: Open circuit, or hot short circuit) 92
Failure code [D1ESKB] (Ladder lower solenoid output ground fault) 94
Failure code [D1ESKZ] (Failure of ladder lower solenoid output: Open circuit, or hot short circuit) 96
Failure code [DBL0KT] (Non-volatile memory write error) 98
Failure code [DBL1KK] (Power Low Error: Battery direct)100
Failure code [DBL2KK] (Solenoid Power Low Err102
Failure code [DDB6KZ] (Parking brake system abnormality)104
Failure code [DDDGKY] (Defective ladder operation switch: Hot short circuit)106
Failure code [DDDKKY] (Defective ladder raise switch: Hot short circuit)108
Failure code [DDDLKY] (Defective ladder lower switch: Hot short circuit)110
Failure code [DK5VKX] (Ladder angle sensor abnormality: Out of range)112
Failure code [DK5VMA] (Power ladder system abnormality)115
Failure code [DUM9KY] (Failure of ladder indicator output: Hot short circuit)118
Failure code [DUM9KZ] (Failure of ladder indicator output: Open circuit or ground fault)120
Failure code [DV00KY] (Failure of ladder interlock caution output: Hot short circuit)122
Failure code [DV00KZ] (Ladder interlock caution output abnormality: Open circuit, ground fault)124
Failure code [DWNLKA] (Ladder cushion valve output open circuit)126
Failure code [DWNLKB] (Ladder cushion valve output ground fault)127
Failure code [DWNLKY] (Ladder cushion valve output hot short circuit)128
Troubleshooting of electrical system (E-mode),129
E-1 Power ladder does not operate129
E-2 Parking brake does not work (as emergency brake)132
E-3 Parking brake applies during traveling136
E-4 Parking brake is released when starting switch is turned ON138
Troubleshooting for machine monitor (M-mode)140
M-1 Rearview monitor does not operate140
M-2 The rearview monitor is dark even when clearance lamp is ON143
M-3 Rearview monitor does not link to reverse movement144
M-4 Cannot adjust the brightness of rearview monitor146
M-5 Engine compartment lamp does not light148
M-6 No lamp lights in front frame151
M-7 Transmission room lamp does not light154
M-8 Front and rear tire lamps do not light156
Troubleshooting of hydraulic and mechanical system (H-mode)158
H-1 Power ladder does not move or its speed is low158
90 Diagrams and drawings159
Hydraulic circuit diagram161
Symbols used in hydraulic circuit diagram161
Service center hydraulic diagram165
Electrical circuit diagram166
Symbols used in electric circuit diagram166
Electrical circuit diagram170
IMAGES PREVIEW OF THE MANUAL:
S.M 18/12/24
