Hyundai Robex 290LC-9MH User manual

Robex 290LC-9MH
CRAWLER EXCAVATOR
SERVICE MANUAL

TABLE OF CONTENT
FOREWORD 8
1. Structure 8
2. How To Read The Service Manual 9
3. Conversion Table 10
SECTION 1 GENERAL 16
Group 1 Safety 17
Group 2 Specifications 26
1. Major Component 26
2. Specifications 28
3. Working Range 30
4. Weight 31
5. Lifting Capacities 32
6. Grapple Guide 34
7. Undercarriage 35
8. Specifications For Major Components 36
9. Recommended Oils 39
SECTION 2 STRUCTURE AND FUNCTION 40
Group 1 Pump Device 41
1. Structure 41
2. Function 47
Group 2 Main Control Valve 60
1. Structure 60
2. Hydraulic Circuit 66
3. Function 67
Group 3 Swing Device 94
1. Structure 94
2. Function 97
Group 4 Travel Device (type 2) 105
1. Construction 105
2. Specification 1) 106
2) 107
3. Operation 108
Group 4 Travel Device (type 1) 119
1. Construction 119
2. Specification 120
3. Principle Of Driving 121
Group 5 Rcv Lever 128
1. Structure 128
2. Functions 131
Group 6 Rcv Pedal 135
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1. Structure 135
2. Function 137
SECTION 3 HYDRAULIC SYSTEM 141
Group 1 Hydraulic Circuit 142
Group 2 Main Circuit 143
1. Suction And Delivery Circuit 143
2. Return Circuit 144
3. Drain Circuit 145
Group 3 Pilot Circuit 146
1. Suction, Delivery And Return Circuit 147
2. Safety Solenoid Valve (safety Lever) 148
3. Boom Priority System 149
4. Travel Speed Control System 150
5. Arm Regeneration Cut System 151
6. Swing Parking Brake Release 152
7. Swing Priority System 153
Group 4 Single Operation 154
1. Boom Up Operation 154
2. Boom Down Operation 155
3. Arm In Operation 156
4. Arm Out Operation 157
5. Grapple Open Operation 158
6. Grapple Closed Operation 159
7. Swing Operation 160
8. Travel Forward And Reverse Operation 162
9. Grapple Rotation Operation 164
Group 5 Combined Operation 165
1. Outline 165
2. Combined Swing And Boom Up Operation 166
3. Combined Swing And Arm Operation 167
4. Combined Swing And Grapple Operation 168
5. Combined Swing And Travel Operation 169
6. Combined Boom And Travel Operation 170
7. Combined Arm And Travel Operation 171
8. Combined Grapple And Travel Operation 172
SECTION 4 ELECTRICAL SYSTEM 173
Group 1 Component Location 174
1. Location 1 174
2. Location 2 175
Memorandum 180
1. Power Circuit 181
2. Starting Circuit 183
3. Charging Circuit 185
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4. Head And Work Light Circuit 187
5. Beacon Lamp And Cab Light Circuit 189
6. Wiper And Washer Circuit 191
Group 3 Electrical Component Specification 196
Group 4 Connectors 204
1. Connector Destination 204
2. Connection Table For Connectors 208
SECTION 5 MECHATRONICS SYSTEM 227
Group 1 Outline 228
Group 2 Mode Selection System 230
1. Power Mode Selection System 230
2. Work Mode Selection System 231
3. User Mode Selection System 232
Group 3 Automatic Deceleration System 233
1. When Auto Idle Pilot Lamp On 2. When Auto Idle Pilot Lamp Off 233
Group 4 Travel Speed Control System 234
Group 5 Automatic Warming Up System 235
Group 6 Engine Overheat Prevention System 236
Group 7 Variable Power Control System 237
Group 8 Anti-restart System 238
1. Anti-restart Function 238
Group 9 Self-diagnostic System 239
3. Machine Error Codes Table 240
4. Engine Fault Code 243
Group 10 Engine Control System 252
1. Mcu And Engine Ecm (electronic Control Module) 2. Mcu Assembly 252
Group 11 Eppr Valve 253
1. Pump Eppr Valve 253
2. Boom Priority Eppr Valve 256
Group 12 Monitoring System 258
1. Outline 258
2. Cluster 258
3. Cluster Connector 260
Group 13 Fuel Warmer System 281
1. Specification 281
2. Operation 281
3. Electric Circuit 281
SECTION 6 TROUBLESHOOTING 282
Group 1 Before Troubleshooting 283
1. Introduction 283
2. Diagnosing Procedure 284
Group 2 Hydraulic And Mechanical System 286
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1. Introduction 286
2. Drive System 287
3. Hydraulic System 289
4. Swing System 291
5. Travel System 295
6. Attachment System 300
Group 3 Electrical System 306
1. When Starting Switch Is Turned On, Monitor Panel Display Does Not Appear
306
3. Battery Charging Warning Lamp Lights Up(starting Switch : On) 308
4. When Coolant Overheat Warning Lamp Lights Up (engine Is Started) 309
5. When Air Cleaner Warning Lamp Lights Up (engine Is Started) 310
6. When Engine Oil Pressure Warning Lamp Lights Up (engine Is Started) 311
7. When Hydraulic Oil Temperature Warning Lamp Lights Up (engine Is Started)
312
8. When Coolant Temperature Gauge Does Not Operate (hcespn 304, Fmi 3 Or 4)
313
9. When Fuel Gauge Does Not Operate(hcespn 301, Fmi 3 Or 4) 314
10. When Safety Solenoid Does Not Operate 315
11. When Travel Speed 1, 2 Does Not Operate (hcespn 167, Fmi 5 Or 6) 316
12. When Engine Does Not Start ( Lights Up Condition) 317
13. When Starting Switch On Does Not Operate 318
14. When Starting Switch Is Turned On, Wiper Motor Does Not Operate 319
15. Is Turned On, Head Lamp When Starting Switch Does Not Lights Up 320
16. Turned On, Work Lamp When Starting Switch Is Does Not Lights Up 321
Group 4 Mechatronics Systegroup System 322
1. All Actuators Speed Are Slow 322
2. Engine Stall 324
3. Malfunction Of Cluster Or Mode Selection System 326
5. Auto Decel System Does Not Work 329
6. Malfunction Of Pump 1 Pressure Sensor 331
7. Malfunction Of Pump 2 Pressure Sensor 333
8. Malfunction Of Pump 3 Pressure Sensor 335
9. Malfunction Of Negative 1 Pressure Sensor 337
10. Malfunction Of Negative 2 Pressure Sensor 339
11. Malfunction Of Swing Pressure Sensor 341
12. Malfunction Of Arm In/out Pressure Sensor 343
13. Malfunction Of Boom Up Pressure Sensor 345
14. Malfunction Of Boom Priority Eppr Valve 347
SECTION 7 MAINTENANCE STANDARD 348
Group 1 Operational Performance Test 349
1. Purpose 349
2. Terminology 350
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