Hyundai Robex 140LC-9 User manual

Robex 140LC-9
CRAWLER EXCAVATOR
SERVICE MANUAL

Table of Content
FOREWORD 8
SECTION 1 GENERAL 16
Group 1 Safety 17
Group 2 Specifications 26
1. Major Component 26
2. Specifications 27
3. Working Range 31
4. Weight 35
5. Lifting Capacities 37
6. Bucket Selection Guide 41
7. Undercarriage 47
8. Specifications For Major Components 49
9. Recommended Oils 52
SECTION 2 STRUCTURE AND FUNCTION 53
Group 1 Pump Device 54
1. Structure 54
2. Function 59
Group 2 Main Control Valve 72
1. Structure 72
2. Hydraulic Circuit 74
3. Function 75
Group 3 Swing Device 99
1. Structure 99
2. Principle Of Driving 102
Group 4 Travel Device 111
1. Construction 111
Group 5 Rcv Lever 121
1. Structure 121
2. Functions 124
Group 6 Rcv Pedal 128
1. Structure 128
2. Function 130
SECTION 3 HYDRAULIC SYSTEM 134
Group 1 Hydraulic Circuit 135
Group 2 Main Circuit 136
1. Suction And Delivery Circuit 136
2. Return Circuit 137
3. Drain Circuit 138
Group 3 Pilot Circuit 139
1. Suction, Delivery And Return Circuit 140
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2. Safety Solenoid Valve (safety Lever) 141
3. Boom Priority System 142
4. Travel Speed Control System 143
5. Main Relief Pressure Change System 144
6. Arm Regeneration Cut System 145
7. Swing Parking Brake Release 146
Group 4 Single Operation 147
1. Boom Up Operation 147
2. Boom Down Operation 148
3. Arm In Operation 149
4. Arm Out Operation 150
5. Bucket In Operation 151
6. Bucket Out Operation 152
7. Dozer Up Operation 153
8. Dozer Down Operation 154
9. Swing Operation 155
8. Travel Forward And Reverse Operation 157
Group 5 Combined Operation 159
1. Outline 159
2. Combined Swing And Boom Up Operation 160
3. Combined Swing And Arm Operation 161
4. Combined Swing And Bucket Operation 162
5. Combined Swing And Travel Operation 163
6. Combined Boom And Travel Operation 164
7. Combined Arm And Travel Operation 165
8. Combined Bucket And Travel Operation 166
SECTION 4 ELECTRICAL SYSTEM 167
Group 1 Component Location 168
1. Location 1 168
2. Location 2 169
Memorandum 172
1. Power Circuit 173
2. Starting Circuit 175
3. Charging Circuit 177
4. Head And Work Light Circuit 179
5. Beacon Lamp And Cab Light Circuit 181
6. Wiper And Washer Circuit 183
Group 3 Electrical Component Specification 188
Group 4 Connectors 196
1. Connector Destination 196
2. Connection Table For Connectors 200
SECTION 5 MECHATRONICS SYSTEM 219
Group 1 Outline 220
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Group 2 Mode Selection System 222
1. Power Mode Selection System 222
2. Work Mode Selection System 223
3. User Mode Selection System 224
Group 3 Automatic Deceleration System 225
1. When Auto Idle Pilot Lamp On 2. When Auto Idle Pilot Lamp Off 225
Group 4 Power Boost System 226
Group 5 Travel Speed Control System 227
Group 6 Automatic Warming Up System 228
Group 7 Engine Overheat Prevention System 229
Group 8 Variable Power Control System 230
Group 9 Attachment Flow Control System 231
Group 10 Anti-restart System 232
1. Anti-restart Function 232
Group 11 Self-diagnostic System 233
3. Machine Error Codes Table 234
4. Engine Fault Code 237
Group 12 Engine Control System 239
1. Mcu And Engine Ecm (electronic Control Module) 239
2. Mcu Assembly 239
Group 13 Eppr Valve 240
1. Pump Eppr Valve 240
2. Boom Priority Eppr Valve 243
Group 14 Monitoring System 245
1. Outline 245
2. Cluster 245
3. Cluster Connector 247
Group 15 Fuel Warmer System 268
1. Specification 268
2. Operation 268
3. Electric Circuit 268
SECTION 6 TROUBLESHOOTING 269
Group 1 Before Troubleshooting 270
1. Introduction 270
2. Diagnosing Procedure 271
Group 2 Hydraulic And Mechanical System 273
1. Introduction 273
2. Drive System 274
3. Hydraulic System 276
4. Swing System 278
5. Travel System 282
6. Attachment System 287
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Group 3 Electrical System 293
1. When Starting Switch Is Turned On, Monitor Panel Display Does Not Appear
293
3. Battery Charging Warning Lamp Lights Up(starting Switch : On) 295
~ 295
4. When Coolant Overheat Warning Lamp Lights Up (engine Is Started) 296
5. When Air Cleaner Warning Lamp Lights Up (engine Is Started) 297
6. When Engine Oil Pressure Warning Lamp Lights Up (engine Is Started) 298
7. When Hydraulic Oil Temperature Warning Lamp Lights Up (engine Is Started)
299
8. When Coolant Temperature Gauge Does Not Operate (hcespn 304, Fmi 3 Or 4)
300
9. When Fuel Gauge Does Not Operate(hcespn 301, Fmi 3 Or 4) 301
10. When Safety Solenoid Does Not Operate 302
11. When Travel Speed 1, 2 Does Not Operate (hcespn 167, Fmi 5 Or 6) 303
12. When Engine Does Not Start ( Lights Up Condition) 304
13. When Starting Switch On Does Not Operate 305
14. When Starting Switch Is Turned On, Wiper Motor Does Not Operate 306
15. When Starting Switch Is Turned On, Head Lamp Does Not Lights Up 307
16. When Starting Switch Is Turned On, Work Lamp Does Not Lights Up 308
Group 4 Mechatronics Systegroup System 309
1. All Actuators Speed Are Slow 309
2. Engine Stall 311
3. Malfunction Of Cluster Or Mode Selection System 313
4. Malfunction Of Accel Dial 314
5. Auto Decel System Does Not Work 316
6. Malfunction Of Pump 1 Pressure Sensor 318
7. Malfunction Of Pump 2 Pressure Sensor 320
8. Malfunction Of Pump 3 Pressure Sensor 322
9. Malfunction Of Negative 1 Pressure Sensor 324
10. Malfunction Of Negative 2 Pressure Sensor 326
11. Malfunction Of Swing Pressure Sensor 328
12. Malfunction Of Arm In/out & Bucket In Pressure Sensor 330
13. Malfunction Of Boom Up Pressure Sensor 332
14. Malfunction Of Power Max 334
15. Malfunction Of Boom Priority Eppr Valve 336
16. Malfunction Of Arm Regeneration Solenoid 337
SECTION 7 MAINTENANCE STANDARD 339
Group 1 Operational Performance Test 340
1. Purpose 340
2. Terminology 341
3. Operation For Performance Tests 342
Group 2 Major Component 360
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