Volvo G726 VHP G726B Motor Grader Workshop Repair Service Manual PDF D7D D10B - MVLVCONG726B.zip
A full workshop manual featuring Electrical Wiring Diagrams for the Volvo G726 VHP and G726B Motor Graders, packed with everything needed to service, troubleshoot, fix, and overhaul these machines the way trained technicians do.
The Volvo Construction Equipment G726 VHP and G726B Motor Graders service and repair guide contains:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
Volvo G726B Motor Graders Repair & Service Manual.pdf
PRODUCT DETAILS:
Total Pages: 1,253 pages
File Format: PDF (Windows & Mac & Linux)
Language: English
TABLE OF CONTENTS
0 - Foreword................2
0 - GENERAL................3
00 - DESCRIPTION; COMPLETE MACHINE................4
Description-[1238]................5
Product identification plates................8
03 - SPECIFICATIONS................11
Dimensions................12
05 - TRANSPOET INSTRUCTION; STORAGE INSTRUCTION; OPERATIONG INSTRUCTION................14
Transporting the machine................15
Storage................20
Grader setup instructions................22
07 - STANDARD TIME................44
Operation numbers for additional work................45
08 - TOOL................47
G700B Special tools................48
09 - MISCELLANEOUS................50
Removing corrosion protective coating................51
1 - STANDARD PARTS; SERVICE................52
17 - SERVICE................53
Hydraulic oil return filter; replacing................54
Towing................59
Jump-start procedure................62
19 - GENERAL................63
Safety concerns everybody!-[5807]................64
CE marking and declaration of conformity................65
Environment................67
Safety when handling the machine................69
Service positions................74
Fire prevention measures................79
Health hazards with paint; plastics and rubber................82
Check list after fire or heat exposure................84
Safety when handling tyres................85
Safety when lifting and supporting the machine................86
Safety when handling oil and fuel................87
Safety when working on the electrical system................88
Safety when working with batteries................89
Battery; charging................91
Safety when working with air-conditioning refrigerant................93
Safety when working on hydraulic systems................95
Safety concerns everybody!................96
Electric welding................97
16 - LUBRICANT; FUEL; OTHER FLUID................99
Fuel system................100
Recommended lubricants................101
Grease................103
Coolant................104
Tandem_oil disc brake oils................105
Alternative fuels................107
2 - ENGINE WITH MOUNTING AND EQUIPMENT................110
21 - ENGINE................111
Specifications; D7D - general_{11-44-22}................113
Specifications; D10B - general_{11-44-00}................114
Specifications; D7D - weight................115
Specifications; D10B - weight................116
Specifications; D7D - capacities_{11-42-46}................117
Specifications; D10B - capacities_{11-42-24}................118
Engine; removing_{11-41-51}................119
Engine; removing_{11-41-26}................123
Specifications; D7D - tightening torques_{11-40-50}................127
Specifications; D10B - tightening torques_{11-40-28}................128
Cylinder compression; testing................129
Cylinder head - D10B; description_{11-38-14}................134
Cylinder head - D7D; description_{11-37-49}................136
Cylinder block - D10B; description................138
Oil trap - D10B; description................139
Cylinder liner; piston; D7D description................140
Cylinder liners; D10B description................143
Cylinder liner; piston; D10B................145
Valves; adjusting_{11-34-08}................147
Valves; adjusting_{11-33-44}................150
Valves; adjusting_{11-33-14}................152
Valves; adjusting................155
Valves - D7D; description................157
Valve mechanism - D10B; description................159
Valve mechanism - D10B; specifications................161
Engine timing gear - D10B; description................162
Camshaft - D10B; description................164
Connecting rod; D7D................165
Crankshaft; D7D................167
Torsional vibration damper; D7D................169
Crankshaft rear oil seal; replacing................171
Crankshaft and vibration damper; D10B................173
22 - LUBRICATING SYSTEM................175
Specifications; D7D................176
Lubrication oil circuit; D7D engine– Models G710B to G730B................177
Lubrication system - D10B; description................180
General; Lubrication oil pump D7D................183
23 - FUEL SYSTEM................185
Fuel system; description_{11-22-42}................186
Fuel system; description_{11-22-20}................187
Fuel system components; D10B................195
Fuel flow; D10B................197
Fuel feed pump - D10B; description................199
Water trap; D10B................201
Injection pump - D10B; specifications................202
Injection pump - D10B; description................203
Fuel shut-off valve; D10B................205
Overflow valve; D10B................207
Injectors - D10B; specification................208
Injectors - D10B; description................209
Injectors; replacing................212
Injection system - D7D; E-ECU overview................218
25 - INLET & EXHAUST SYSTEM................222
Exhaust system - D7D engine................223
Exhaust system - D10B engine................225
General-[1230]................227
Air cleaner................228
Preheating coil; D10B................230
Intercooler D10B; specifications................232
Intercooler; D10B................233
Cooling system - D7D engine; description................235
Cooling system - D10B engine; description................238
27 - ENGINE CONTROL................241
Accelerator_decelerator pedal................242
Hand Throttle................244
VHP (Variable Horsepower)................246
20 - GENERAL................247
Description; D7D_{11-46-40}................248
Description; D10B_{11-46-17}................249
General description-[4543]................250
3 - ELECTRICAL; WARNING; INFORMATION; INSTRUMENTS................251
30 - GENERAL................252
Description-[0333]................253
Operation................255
General-[0241]................256
31 - BATTERY................268
Description-[0151]................269
Specifications-[0125]................270
Non-maintenance batteries; testing................271
Explosion hazard................272
Battery box................273
32 - ALTERNATOR; CHARGE REGULATOR................274
Voltage regulator................275
Specifications-[5834]................276
Alternator; description................277
33 - STARTING SYSTEM................278
Specifications-[5704]................279
Starting system; general description................280
Neutral start relay................281
Electric air - preheater................282
35 - LIGHTING................283
General-[5512]................284
Lighting; front................285
Lighting; rear................286
Lighting; interior................287
Lighting; side................288
36 - OTHER ELECTRICAL EQUIPMENT................289
Description-[5255]................290
Direction indicator; turn signal................291
External warning system................292
Ignition switch................293
Automatic control_blocking function................295
37 - CABLE; FUSE; RELAY................297
Electrical symbols and designations................300
Description-[4735]................302
Cable; Battery isolation switch................303
Electrical component list................304
Wiring diagram 1 – Main diagram_Positive feeds_Chassis connections_{10-46-24}................311
Wiring diagram 1 – Main diagram_Positive feeds_Chassis connections_{10-46-00}................314
Wiring diagram 2 – Positive feed_Chassis connection I-ECU_E-ECU_{10-45-24}................317
Wiring diagram 2 – Positive feed_Chassis connection I-ECU_E-ECU_{10-45-00}................319
Wiring diagram 3 – Engine_{10-44-17}................321
Wiring diagram 3 – Engine_{10-43-52}................324
Wiring diagram 4 – D7 Engine ECU_{10-43-16}................327
Wiring diagram 4 – D7 Engine ECU_{10-42-52}................329
Wiring diagram 5 – D10 Engine ECU_{10-42-10}................332
Wiring diagram 5 – D10 Engine ECU_{10-41-46}................336
Wiring diagram 6 – D7; D10 Engine ECU_{10-41-10}................338
Wiring diagram 6 – D7; D10 Engine ECU_{10-40-45}................341
Wiring diagram 7 – Accelerator pedal_Fuel level_{10-40-10}................343
Wiring diagram 7 – Accelerator pedal_Fuel level_{10-39-45}................346
Wiring diagram 8 – Fan ECU_{10-39-03}................349
Wiring diagram 8 – Fan ECU_{10-38-36}................352
Wiring diagram 9 – Headlights_Turn signals_Horn_{10-37-59}................355
Wiring diagram 9 – Headlights_Turn signals_Horn_{10-37-34}................359
Wiring diagram 10 – EEC Headlights and flashers_{10-36-58}................362
Wiring diagram 10 – EEC Headlights and flashers_{10-36-33}................365
Wiring diagram 11 – Work lights_{10-35-45}................368
Wiring diagram 11 – Work lights_{10-35-21}................371
Wiring diagram 12 – EEC Worklights_{10-34-45}................374
Wiring diagram 12 – EEC Worklights_{10-34-20}................377
Wiring diagram 13 – Windshield wiper systems_{10-33-44}................380
Wiring diagram 13 – Windshield wiper systems_{10-33-19}................383
Wiring diagram 14 – 25 amp_60 amp converter_equalizer_{10-32-43}................387
Wiring diagram 14 – Rotating beacons_ Differential lock_MBCS_Articulation sensor_{10-32-19}................390
Wiring diagram 15 – Transmission ECU_{10-31-43}................393
Wiring diagram 15 – Rotating beacons_differential lock_MBCS_{10-31-18}................396
Wiring diagram 16 – AWD ECU_{10-30-42}................399
Wiring diagram 16 – Transmission ECU_{10-30-18}................402
Wiring diagram 17 – AWD ECU_{10-29-41}................406
Wiring diagram 17 – AWD ECU_{10-29-11}................410
Wiring diagram 18 – AWD ECU_{10-28-35}................414
Wiring diagram 18 – Sensors_{10-28-10}................419
Wiring diagram 19 – Sensors_{10-27-34}................422
Wiring diagram 19 – Brake circuit; lights_{10-27-10}................425
Wiring diagram 20 – Brake circuit; lights_{10-26-34}................428
Wiring diagram 20 – Secondary steering_{10-26-10}................431
Wiring diagram 21 – Climate control unit_{10-25-33}................434
Wiring diagram 21 – Secondary steering_{10-25-09}................438
Wiring diagram 22 – Front and rear defroster fans_{10-24-27}................441
Wiring diagram 22 – Climate control unit_{10-24-03}................444
Wiring diagram 23 – Front defroster fans_{10-23-12}................448
Wiring diagram 23 – Radio_Heated mirrors_{10-22-47}................451
Wiring diagram 24 – Blade float module_{10-22-12}................453
Wiring diagram 24 – Radio_Dome light_Heated mirrors_{10-21-47}................456
Wiring diagram 25 – Front float module_{10-20-59}................459
Wiring diagram 25 – Blade float module_{10-20-35}................462
Wiring diagram 26 – Tire pump_{10-19-59}................465
Wiring diagram 26 – Front float module_{10-19-35}................467
Wiring diagram 27 – Rear float module_{10-18-58}................470
Wiring diagram 27 – Communication; E-ECU_I-ECU_{10-18-34}................472
Wiring diagram 28 – Tire pump_Power outlet_{10-17-58}................475
Wiring diagram 28 – Keyboard_{10-17-33}................478
Wiring diagram 29 – Communication; E-ECU_I-ECU................480
Wiring diagram 30 – Keyboard................483
Electrical distribution box fuses; relays................485
Data link port................487
Ground stud - locations................488
38 - INSTRUMENT; SENSOR; WARNING & INFORMATION SYSTEM................496
Description-[1405]................497
Diagnostic software................513
Description of tests................514
4 - POWER TRANSMISSION................515
42 - TRANSMISSION; HYDRAULIC CONTROL................516
Specifications-[0514]................517
Description; 8400 transmission................519
Transmission components................522
Transmission ECU and shifter assembly................524
Transmission oil circuit and operation................527
Transmission hydraulic circuit and operation................532
Transmission troubleshooting................534
Error codes................538
Hydraulic system troubleshooting................541
Transmission; removing................547
Transmission; installing................551
44 - HYDROSTATIC DRIVE................555
Specifications; All Weel Drive system................556
Description; AWD system................557
AWD electrical system................566
AWD hydraulic system................574
All Wheel Drive Operational Checks................583
AWD test procedure and test port locations................585
AWD error codes and troubleshooting................590
All Wheel Drive Pump and Motor Priming Procedure................604
41 - CLUTCH; TORQUE CONVERTER................607
Specifications; engine clutch................608
Description and operation; engine clutch................610
Clutch housing; removing................614
Clutch assembly; removing................617
Clutch assembly; installing................619
Clutch housing; installing................621
Bearing support housing; installing................623
Clutch Slave Cylinder and Pedal Free Play; adjusting-[0737]................625
Clutch Slave Cylinder and Pedal Free Play; adjusting................628
Specifications; clutch master cylinder and booster circuit................630
Description; clutch master cylinder and booster................631
46 - FRONT AXLE; REAR AXLE................635
Specifications; SR final drive................636
Description; SR final drives................637
Operation; SR final drive................638
Lock_unlock function-[5319]................640
Final drive assembly; removing-[5253]................641
Tandem; removing-[5223]................643
Final drive assembly; installing-[5158]................644
Specifications; G780B - DR final drive................646
Description; G780B - DR final drive................647
Operation; G780B DR final drive................648
Lock_unlock function................650
Lubrication circuit................651
Final drive assembly; removing................652
Final drive assembly; installing................657
Specifications; tandems................662
Tandem assembly................663
Tandem; removing................665
Differential Lock; G710B - G746B................671
Differential Lock; G780B................673
5 - BRAKE................675
52 - HYDRAULIC BRAKE SYSTEM................676
Brake circuit hydraulic schematic - Image................677
Electrical schematic - Image................678
Specifications-[3651]................680
Description-[3625]................681
Brake master cylinder and power booster; removing................691
Power booster; disassembling................692