Hyundai Robex 80CR-9 User manual

Robex 80CR-9
CRAWLER EXCAVATOR
SERVICE MANUAL

Table of Content
FOREWORD 7
SECTION 1 GENERAL 15
Group 1 Safety 16
Group 2 Specifications 24
1. Major Component 24
2. Specifications 25
3. Working Range 26
4. Weight 27
5. Lifting Capacities 28
6. Bucket Selection Guide 29
7. Undercarriage 30
8. Specifications For Major Components 31
9. Recommended Oils 34
SECTION 2 STRUCTURE AND FUNCTION 35
Group 1 Hydraulic Pump 36
1. General 36
2. Principal Components And Functions 37
Group 2 Main Control Valve 41
1. Outline 41
2. Hydraulic Circuit 42
3. Structure (1/4) 43
Group 3 Swing Device 47
1. Structure 47
2. Function 50
1. Structure 57
2. Operation Principle 61
3. Operation 62
Group 4 Travel Device 68
1. Construction 68
2. Principle Of Driving 71
2. Reduction Gear 76
Group 5 Rcv Lever 77
1. Structure 77
2. Functions 80
Group 6 Rcv Pedal 84
1. Structure 84
2. Functions 86
SECTION 3 HYDRAULIC SYSTEM 90
Group 1 Hydraulic Circuit 91
Group 2 Main Circuit 92
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1. Suction And Delivery Circuit 92
2. Return Circuit 93
3. Drain Circuit 94
Group 3 Pilot Circuit 95
1. Suction, Delivery And Return Circuit 96
2. Safety Valve (safety Lever) 97
3. Travel Speed Control System 98
4. Swing Parking Brake Release 99
Group 4 Single Operation 100
1. Boom Up Operation 100
2. Boom Down Operation 101
3. Arm Roll In Operation 102
4. Arm Roll Out Operation 103
5. Bucket Roll In Operation 104
6. Bucket Roll Out Operation 105
7. Swing Operation 106
8. Travel Forward And Reverse Operation 108
9. Dozer Up Operation 110
10. Dozer Down Operation 111
Group 5 Combined Operation 112
1. Outline 112
2. Combined Swing And Boom Operation 113
3. Combined Swing And Arm Operation 114
4. Combined Swing And Bucket Operation 115
5. Combined Swing And Travel Operation 116
6. Combined Boom And Travel Operation 117
7. Combined Arm And Travel Operation 118
8. Combined Bucket And Travel Operation 119
SECTION 4 ELECTRICAL SYSTEM 120
Group 1 Component Location 121
1. Location 1 121
2. Location 2 122
Group 2 Monitoring System 123
1. Outline 123
2. Cluster 123
3. Cluster Connector 125
4. Cluster Function 126
Memorandum 137
1. Power Circuit 138
2. Starting Circuit 140
3. Charging Circuit 142
4. Head And Work Lamp Circuit 144
5. Beacon Lamp And Cab Lamp Circuit 146
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6. Wiper And Washer Circuit 148
Group 4 Electrical Component Specification 152
~ 156
Group 5 Connectors 159
1. Connector Destination 159
2. Connection Table For Connectors 162
SECTION 5 TROUBLESHOOTING 176
Group 1 Before Troubleshooting 177
1. Introduction 177
2. Diagnosing Procedure 178
Group 2 Hydraulic And Mechanical System 180
1. Introduction 180
2. Drive System 181
3. Hydraulic System 183
4. Swing System 185
5. Travel System 189
6. Attachment System 194
Group 3 Electrical System 200
1. When Starting Switch Is Turned On, Monitor Panel Display Does Not Appear
200
2. Battery Charging Warning Lamp Lights Up (starting Switch : On) 201
3. When Coolant Overheat Warning Lamp Lights Up (engine Is Started) 202
4. When Air Cleaner Warning Lamp Lights Up (engine Is Started) 203
5. When Engine Oil Pressure Warning Lamp Lights Up (engine Is Started) 204
6. When Hydraulic Oil Temperature Warning Lamp Lights Up (engine Is Started)
205
7. When Coolant Temperature Gauge Does Not Operate 206
8. When Fuel Gauge Does Not Operate (check Warning Lamp On/off) 207
9. When Safety Solenoid Does Not Operate 208
10. When Travel Speed 1, 2 Does Not Operate 209
11. When Starting Switch Is Turned On, Wiper Motor Does Not Operate 210
12. When Starting Switch Is Turned On, Head Lamp Does Not Lights Up 211
13. When Starting Switch Is Turned On, Work Lamp Does Not Lights Up 212
14. When Engine Does Not Start 213
15. When Starting Switch On Does Not Operate 214
SECTION 6 MAINTENANCE STANDARD 215
Group 1 Operational Performance Test 216
1. Purpose 216
2. Terminology 217
3. Operation For Performance Tests 218
Group 2 Major Component 236
1. Main Pump 236
2. Main Control Valve 238
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3. Swing Device 239
4. Travel Device 240
5. Turning Joint 242
6. Cylinder 243
Group 3 Track And Work Equipment 244
1. Track 244
2. Work Equipment 250
SECTION 7 DISASSEMBLY AND ASSEMBLY 251
Group 1 Precautions 252
1. Removal Work 252
2. Install Work 253
3. Completing Work 254
Group 2 Tightening Torque 255
1. Major Components 255
2. Torque Chart 256
Group 3 Pump Device 258
1. Removal And Install 258
2. Main Pump 260
3. Disassembly And Assembly 263
Group 4 Main Control Valve 293
1. Removal And Install Of Motor 293
2. Structure (1/4) 294
3. Disassembly 298
4. Assembly 306
5. Maintenance Standard 314
6. Problem Causes And Measures 315
Group 5 Swing Device 317
1. Removal And Install Of Motor 317
2. Disassembly And Assembly Of Swing Motor 318
3. Removal And Install Of Reduction Gear 331
4. Disassembly And Assembly Of Reduction Gear 332
1. Removal And Install 338
3. Disassembly 343
4. Assembly 350
Group 6 Travel Device 360
1. Removal And Install 360
2. Disassembly 363
3. Assembly 372
Group 7 Rcv Lever 385
1. Removal And Install 385
2. Disassembly And Assembly 386
Group 8 Turning Joint 399
1. Removal And Install 399
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2. Disassembly And Assembly 400
Group 9 Boom, Arm And Bucket Cylinders 404
1. Removal And Install 404
2. Disassembly And Assembly 410
Group 10 Undercarriage 423
1. Track Link 423
2. Carrier Roller 424
3. Track Roller 425
4. Idler And Recoil Spring 426
Group 11 Work Equipment 435
1. Structure 435
2. Removal And Install 436
SECTION 8 COMPONENT MOUNTING TORQUE 439
Group 1 Introduction Guide 440
Group 2 Engine System 441
1. Engine And Accessories Mounting 441
2. Cooling System And Fuel Tank Mounting 442
Group 3 Electric System 443
1. Electric Components Mounting 1 443
Group 4 Hydraulic System 444
1. Hydraulic Components Mounting 1 444
2. Hydraulic Components Mounting 2 445
Group 5 Undercarriage 446
Group 6 Structure 447
1. Cab And Accessories Mounting 447
2. Cowling Mounting 448
Group 7 Work Equipment 449
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Find manuals at https://best-manuals.com

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