Volvo G730, G730 VHP, G730B Motor Graders Repair & Service Manual
Complete repair service manual with electrical wiring diagrams for Volvo Constructions G730, G730 VHP, G730B Motor Graders, with all the shop information to maintain, diagnose, repair, and rebuild like professional mechanics.
Volvo G730, G730 VHP, G730B workshop service & repair manual includes:
* 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 730B Motor Graders Repair Service Manual.pdf
PRODUCT DETAILS:
Total Pages: 1,133 pages
File Format: PDF (Windows & Mac & Linux)
Language: English
TABLE OF CONTENTS
000 - Foreword................2
000 - GENERAL................3
00 - DESCRIPTION; COMPLETE MACHINE................4
Description................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
001 - STANDARD PARTS; SERVICE................52
16 - LUBRICANT; FUEL; OTHER FLUID................53
Fuel system................54
Recommended lubricants................55
Grease................57
Coolant................58
Tandem_oil disc brake oils................59
Alternative fuels................61
17 - SERVICE................64
Maintenance of Stored Machines; according to Inspection Programme................65
Delivery Inspection; according to Inspection Programme................66
Arrival Inspection; according to Inspection Programme................67
Hydraulic oil return filter; replacing................68
Towing................73
Jump-start procedure................76
19 - GENERAL................77
Safety concerns everybody!-................78
CE marking and declaration of conformity................79
Environment................81
Safety when handling the machine................83
Service positions................88
Fire prevention measures................93
Health hazards with paint; plastics and rubber................96
Check list after fire or heat exposure................98
Safety when handling tyres................99
Safety when lifting and supporting the machine................100
Safety when handling oil and fuel................101
Safety when working on the electrical system................102
Safety when working with batteries................103
Battery; charging................105
Safety when working with air-conditioning refrigerant................107
Safety when working on hydraulic systems................109
Safety concerns everybody!................110
Electric welding................111
002 - ENGINE WITH MOUNTING AND EQUIPMENT................113
20 - GENERAL................114
Description; D7D_{01-38-19}................115
Description; D10B_{01-37-57}................116
General description ................117
21 - ENGINE................118
Specifications; D7D - general_{01-36-13}................119
Specifications; D10B - general_{01-35-54}................120
Specifications; D7D - weight................121
Specifications; D10B - weight................122
Specifications; D7D - capacities_{01-34-45}................123
Specifications; D10B - capacities_{01-34-26}................124
Engine; removing_{01-33-55}................125
Engine; removing_{01-33-33}................129
Specifications; D7D - tightening torques_{01-32-53}................133
Specifications; D10B - tightening torques_{01-32-33}................134
Cylinder compression; testing................135
Cylinder head - D10B; description_{01-30-18}................140
Cylinder head - D7D; description_{01-29-54}................142
Cylinder block - D10B; description................144
Oil trap - D10B; description................145
Cylinder liner; piston; D7D description................146
Cylinder liners; D10B description................149
Cylinder liner; piston; D10B................151
Valves; adjusting_{01-25-40}................153
Valves; adjusting_{01-25-18}................156
Valves - D7D; description................158
Valve mechanism - D10B; description................160
Valve mechanism - D10B; specifications................162
Engine timing gear - D10B; description................163
Camshaft - D10B; description................165
Connecting rod; D7D................166
Crankshaft; D7D................168
Torsional vibration damper; D7D................170
Crankshaft rear oil seal; replacing................172
Crankshaft and vibration damper; D10B................174
22 - LUBRICATING SYSTEM................176
Specifications; D7D................177
Lubrication oil circuit; D7D engine– Models G710B to G730B................178
Lubrication system - D10B; description................181
General; Lubrication oil pump D7D................184
23 - FUEL SYSTEM................186
Fuel system; description_{01-16-13}................187
Fuel system; description_{01-15-53}................188
Fuel system components; D10B................196
Fuel flow; D10B................198
Fuel feed pump - D10B; description................200
Water trap; D10B................202
Injection pump - D10B; specifications................203
Injection pump - D10B; description................204
Fuel shut-off valve; D10B................206
Overflow valve; D10B................208
Injectors - D10B; specification................209
Injectors - D10B; description................210
Injectors; replacing................213
Injection system - D7D; E-ECU overview................219
25 - INLET & EXHAUST SYSTEM................223
Exhaust system - D7D engine................224
Exhaust system - D10B engine................226
General ................228
Air cleaner................230
Preheating coil; D10B................232
Intercooler D10B; specifications................234
Intercooler; D10B................235
26 - COOLING SYSTEM................237
Cooling system - D7D engine; description................238
Cooling system - D10B engine; description................241
27 - ENGINE CONTROL................244
Accelerator_decelerator pedal................245
Hand Throttle................247
VHP (Variable Horsepower)................249
003 - ELECTRICAL; WARNING; INFORMATION; INSTRUMENTS................250
30 - GENERAL................251
Description ................252
Operation................254
General ................255
31 - BATTERY................267
Description ................268
Specifications ................269
Non-maintenance batteries; testing................270
Explosion hazard................271
Battery box................272
32 - ALTERNATOR; CHARGE REGULATOR................273
Voltage regulator................274
Specifications ................275
Alternator; description................276
33 - STARTING SYSTEM................277
Specifications ................278
Starting system; general description................279
Neutral start relay................280
Electric air - preheater................281
35 - LIGHTING................282
General ................283
Lighting; front................284
Lighting; rear................285
Lighting; interior................286
Lighting; side................287
36 - OTHER ELECTRICAL EQUIPMENT................288
Description ................289
Direction indicator; turn signal................290
External warning system................291
Ignition switch................292
Automatic control_blocking function................294
37 - CABLE; FUSE; RELAY................296
Electrical symbols and designations................299
Description ................301
Cable; Battery isolation switch................302
Electrical component list................303
Wiring diagram 1 – Main diagram_Positive feeds_Chassis connections_{12-44-45}................310
Wiring diagram 1 – Main diagram_Positive feeds_Chassis connections_{12-44-23}................313
Wiring diagram 2 – Positive feed_Chassis connection I-ECU_E-ECU_{12-43-49}................316
Wiring diagram 2 – Positive feed_Chassis connection I-ECU_E-ECU_{12-43-27}................318
Wiring diagram 3 – Engine_{12-42-53}................320
Wiring diagram 3 – Engine_{12-42-30}................323
Wiring diagram 4 – D7 Engine ECU_{12-41-44}................326
Wiring diagram 4 – D7 Engine ECU_{12-41-22}................328
Wiring diagram 5 – D10 Engine ECU_{12-40-48}................331
Wiring diagram 5 – D10 Engine ECU_{12-40-26}................335
Wiring diagram 6 – D7; D10 Engine ECU_{12-39-52}................337
Wiring diagram 6 – D7; D10 Engine ECU_{12-39-29}................340
Wiring diagram 7 – Accelerator pedal_Fuel level_{12-38-56}................342
Wiring diagram 7 – Accelerator pedal_Fuel level_{12-38-33}................345
Wiring diagram 8 – Fan ECU_{12-37-58}................348
Wiring diagram 8 – Fan ECU_{12-37-34}................351
Wiring diagram 9 – Headlights_Turn signals_Horn_{12-36-59}................354
Wiring diagram 9 – Headlights_Turn signals_Horn_{12-36-36}................358
Wiring diagram 10 – EEC Headlights and flashers_{12-36-02}................361
Wiring diagram 10 – EEC Headlights and flashers_{12-35-39}................364
Wiring diagram 11 – Work lights_{12-35-05}................367
Wiring diagram 11 – Work lights_{12-34-42}................370
Wiring diagram 12 – EEC Worklights_{12-34-08}................373
Wiring diagram 12 – EEC Worklights_{12-33-46}................376
Wiring diagram 13 – Windshield wiper systems_{12-33-12}................379
Wiring diagram 13 – Windshield wiper systems_{12-32-50}................382
Wiring diagram 14 – 25 amp_60 amp converter_equalizer_{12-32-16}................386
Wiring diagram 14 – Rotating beacons_ Differential lock_MBCS_Articulation sensor_{12-31-53}................389
Wiring diagram 15 – Transmission ECU_{12-31-19}................392
Wiring diagram 15 – Rotating beacons_differential lock_MBCS_{12-30-57}................395
Wiring diagram 16 – AWD ECU_{12-30-17}................398
Wiring diagram 16 – Transmission ECU_{12-29-55}................401
Wiring diagram 17 – AWD ECU_{12-29-20}................405
Wiring diagram 17 – AWD ECU_{12-28-58}................409
Wiring diagram 18 – AWD ECU_{12-28-24}................413
Wiring diagram 18 – Sensors_{12-28-01}................418
Wiring diagram 19 – Sensors_{12-27-15}................421
Wiring diagram 19 – Brake circuit; lights_{12-26-53}................424
Wiring diagram 20 – Brake circuit; lights_{12-26-19}................427
Wiring diagram 20 – Secondary steering_{12-25-56}................430
Wiring diagram 21 – Climate control unit_{12-25-22}................433
Wiring diagram 21 – Secondary steering_{12-25-00}................437
Wiring diagram 22 – Front and rear defroster fans_{12-24-26}................440
Wiring diagram 22 – Climate control unit_{12-24-03}................443
Wiring diagram 23 – Front defroster fans_{12-23-23}................447
Wiring diagram 23 – Radio_Heated mirrors_{12-23-01}................450
Wiring diagram 24 – Blade float module_{12-22-27}................452
Wiring diagram 24 – Radio_Dome light_Heated mirrors_{12-22-04}................455
Wiring diagram 25 – Front float module_{12-21-30}................458
Wiring diagram 25 – Blade float module_{12-21-08}................461
Wiring diagram 26 – Tire pump_{12-20-34}................464
Wiring diagram 26 – Front float module_{12-20-11}................466
Wiring diagram 27 – Rear float module_{12-19-37}................469
Wiring diagram 27 – Communication; E-ECU_I-ECU_{12-19-15}................471
Wiring diagram 28 – Tire pump_Power outlet_{12-18-42}................474
Wiring diagram 28 – Keyboard_{12-18-19}................477
Wiring diagram 29 – Communication; E-ECU_I-ECU................479
Wiring diagram 30 – Keyboard................482
Electrical distribution box fuses; relays................484
Data link port................486
Ground stud - locations................487
38 - INSTRUMENT; SENSOR; WARNING & INFORMATION SYSTEM................495
Description ................496
Diagnostic software................512
Description of tests................513
004 - POWER TRANSMISSION................514
41 - CLUTCH; TORQUE CONVERTER................515
Specifications; engine clutch................516
Description and operation; engine clutch................518
Clutch housing; removing................522
Clutch assembly; removing................525
Clutch assembly; installing................527
Clutch housing; installing................529
Bearing support housing; installing................531
Clutch Slave Cylinder and Pedal Free Play; adjusting................533
Specifications; clutch master cylinder and booster circuit................535
Description; clutch master cylinder and booster................536
42 - TRANSMISSION; HYDRAULIC CONTROL................540
Specifications-................541
Description; 8400 transmission................542
Transmission components................545
Transmission ECU and shifter assembly................547
Transmission oil circuit and operation................550
Transmission hydraulic circuit and operation................555
Transmission troubleshooting................557
Error codes................561
Hydraulic system troubleshooting................564
Transmission; removing................570
Transmission; installing................574
44 - HYDROSTATIC DRIVE................578
Specifications; All Weel Drive system................579
Description; AWD system................580
AWD electrical system................589
AWD hydraulic system................597
All Wheel Drive Operational Checks................606
AWD test procedure and test port locations................608
AWD error codes and troubleshooting................613
All Wheel Drive Pump and Motor Priming Procedure................627
46 - FRONT AXLE; REAR AXLE................630
Specifications; SR final drive................631
Description; SR final drives................632
Operation; SR final drive................633
Lock_unlock function ................635
Final drive assembly; removing ................636
Tandem; removing ................638
Final drive assembly; installing ................639
Specifications; G780B - DR final drive................641
Description; G780B - DR final drive................642
Operation; G780B DR final drive................643
Lock_unlock function................645
Lubrication circuit................646
Final drive assembly; removing................647
Final drive assembly; installing................652
Specifications; tandems................657
Tandem assembly................658
Tandem; removing................660
Differential Lock; G710B - G746B................666
Differential Lock; G780B................668
005 - BRAKE................670
50 - GENERAL................671
Overview................672
51 - WHEEL BRAKE................676
Brake circuit hydraulic schematic - Image................677
Electrical schematic - Image................678
General................679
Description ................680
Brake circuit hydraulic schematic................684
Electrical schematic ................686
Electric motor_pump troubleshooting................689
Oil disc brake assembly; removing................692
Oil disc brakes; disassembling................695
Oil Disc Brake - Cleaning and Inspection................701
Brake housing; pre-assembling................703
Tandem axle oil seal installation................705
Tandem axle seal; installing................707
Oil disc brakes ; assembling................713
Oil Disc Brakes - Bench Adjustment................718
Oil disc brake; installing................720
52 - HYDRAULIC BRAKE SYSTEM................724
Adjustment checks................725
Brake master cylinder and power booster; installing................727
Brake master cylinder; assembling................729
Brake master cylinder; disassembling................732
Power booster; assembling................735
Power booster; disassembling................737
Brake master cylinder and power booster; removing................739
Description ................740
Specifications ................750
55 - PARKING BRAKE................751
Hydraulic diagram - Image................752
Electrical schematic - Image................753
Specifications................754
Description................756
Parking brake; manually releasing................758
Hydraulic diagram................760
Electrical schematic................763
Parking brake troubleshooting................765
Parking brake overhaul procedure................766
Parking brake assembly; removing................769
Parking brake; disassembling................770
Parking brake; pre-assembling................772
Parking brake; assembling................773
Parking brake; installing................775
Parking brake; adjusting................777
Parking brake intensifier................779
Parking brake valve assembly................781
006 - STEERING................783
60 - GENERAL................784
Steering system; description................785
Tightening torques ................788
Front axle toe-in ................789
Description ................790
Tightening torques -................795
Front axle toe-in................796
Front axle pivot (G710B to G746B)................797
62 - STEERING AXLE................798
Wheel hub; removing................800
Wheel hub; installing................802
Steering axle – Disassembly................804
Preparation and wheel; removing................805
Tie bar; removing................807
Tie bar; installing................808
Steering cylinder; removing................809
Steering cylinder; installing................811
Knuckle; removing................812
Knuckle; installing................813
Drag link; removing................814
Drag link; installing................816
Pivot block; removing and disassembling................817
Pivot block; assembling and installing................818
Wheel lean cylinder; removing................819
Wheel lean cylinder; installing................821
Front axle frame; removing................822
Front axle frame; installing................824
Wheel; installing................826
Axle disassembly and assembly - G780B................827
Front Axle Pivot Pin Bearings; disassembling................828
Front Axle Pivot Pin Bearings; assembling................830
King Pin Bearings and Spindle Thrust Bearing; disassembling................833
King Pin Bearings and Spindle Thrust Bearing; assembling................835
Wheel bearings; disassembling................837
Wheel bearings; assembling................839
Pivot Block Adjustments................841
Wheel Bearing; cleaning and inspecting................842
Spindle; removing and disassembling................844
Spindle; assembling and installing................846
Toe - in; adjustment_{11-33-01}................848
Toe - in; adjustment_{11-32-42}................849
64 - STEERING................851
Steering hydraulic schematics - Image................853
Secondary steering hydraulic schematic - Image................854
Wheel lean hydraulic schematic - Image................855
Specifications ................856
Description ................857
Steering column; disassembling................859
Steering column; assembling................861
Steering Column - Cleaning and Inspection................862
Steering control unit; removing................863
Steering control unit; installing................864
Specifications-................865
Description-................866
Steering hydraulic schematics................867
Steering system troubleshooting guide................869
Steering control unit troubleshooting................871
Specifications -................874
Components-................875
Steering control unit overhaul procedure................877
Steering control unit; disassembling................878
Steering control unit; assembling................883
Steering Control Unit - Bleeding Procedure................889
Specifications_................890
Description_................891
Function_................893
Specifications _................895
General description................897
Secondary steering; specifications................898
Secondary steering; description................899
Secondary steering; component location................901
Secondary steering hydraulic schematic................904
Secondary steering troubleshooting................906
Hydraulic cylinder specifications................907
Description-_................909
Wheel lean hydraulic schematic................911
007 - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT................913
71 - FRAME................914
Description................915
74 - FRAME LINK................917
Tightening torques................918
Articulation hinge................919
Articulation hinge – Preparation for disassembly................922
Articulation hinge; disassembling................924
Cleaning and inspection................928
Articulation Hinge; assembling................929
Articulation hydraulics................933
Articulation Indicator - Setup and Adjustment ................936
Articulation Indicator - Setup and Adjustment................938
77 - WHEELS; TRACKS; TYRE; HUB; DRUM................942
Wheels; specifications................943
General description – Wheels................944
Tire troubleshooting guide................946
008 - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE................948
87 - AIR CONDITIONING UNIT................949
Climate control unit electrical schematic - Image................950
Specifications_................951
Description_................953
Operating principle................954
HVAC system components................956
Cab air distribution_{011-09-01}................961
Cab air distribution_{011-08-39}................963
Basic operational checks................965
Air conditioning system................966
Climate control unit electrical schematic................967
Troubleshooting guide Low pressure gauge shown on left; high pressure gauge shown on right................969
HVAC routine maintenance................972
Air conditioner service................974
Air Conditioning System Repairs................975
88 - INTERIOR EQUIPMENT................977
Description_................978
Control levers; disassembling................982
Control Levers - Cleaning and Inspection................985
Control levers; assembling................986
Pedestal Locking Strut - Setup................988
Locking Strut - Troubleshooting................989
009 - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPMENT; MISCELLANEOUS................990
90 - GENERAL................991
Main hydraulic schematic; EEC float valves – Sheet 4 - Image................992
Main hydraulic schematic; EEC – Sheet 3 - Image................993
Main hydraulic schematic; float valves – Sheet 2 - Image................994
Main hydraulic schematic - sheet 1 - Image................995
Main hydraulic schematic - sheet 001................996
Main hydraulic schematic; float valves – Sheet 002................1000
Main hydraulic schematic; EEC – Sheet 003................1003
Main hydraulic schematic; EEC float valves – Sheet 004................1006
Specifications-................1009
Description-................1010
Hydraulic components; location................1012
Hydraulic system troubleshooting guide................1015
91 - WORKING HYDRAULIC; SERVO HYDRAULICS................1019
Single attachment valve with relief (EEC) - Image................1022
Counterbalance valve for attachments - Image................1023
Auxiliary control valves – Sheet 005................1026
Hydraulic Oil Filler Cap - Prevention of Contaminants................1028
Hydraulic oil cleanliness................1030
Specifications-................1036
Description-................1038
Main control valve spool flow rates................1039
Main control valve section................1041
Main control valve troubleshooting................1045
Main control valve overhaul procedure................1047
Main control valve; removing................1048
Main control valve; disassembling................1049
Valve section; disassembling................1051
Valve section; assembling................1054
Main control valve; assembling................1056
Main control valve; installing................1059
Main Control Valve Bleeding Procedure................1060
Specifications_................1062
Description_................1063
Hydraulic swivel joint; removing................1065
Hydraulic swivel joint; disassembling................1068
Hydraulic swivel joint; assembling................1071
Hydraulic swivel joint; installing................1074
Specifications ................1077
Description ................1078
Components................1079
Circle Turn Valve Overhaul Procedure................1082
Circle turn valve; removing................1083
Circle turn valve; disassembling................1085
Circle turn valve; assembling................1089
Circle turn valve; installing................1092
Circle Timing................1094
Specifications- ................1097
Description- ................1099
Specifications_ ................1100
Test procedures ................1101
Description-_................1103
Function-................1104
Specifications ................1105
Test procedures................1106
Description ................1108
Function ................1109
Specifications- ................1111
Description_ ................1113
Preventive maintenance................1114
Accumulator precharge pressure; checking................1115
Accumulator -Charging................1117
Accumulator precharge adjustment chart................1119
Specifications-_................1120
Hydraulic Cylinder Overhaul Procedure................1122
Hydraulic cylinder; disassembling................1124
Hydraulic cylinder; assembling................1130
Special tools................1135
Specifications.................1136
General.................1137
Specifications-.................1138
Function.................1139
Specifications- .................1140
Description .................1141
Function................1142
Auxiliary load sense shuttle valve................1144
Counterbalance valve for attachments................1145
Single attachment valve with relief (EEC)................1147
General_-................1148
Specifications-_-................1149
Specifications- -................1151
Specifications -_................1153
Description -_................1154
Principle of operation; main hydraulic pump................1157
Principle of operation; pressure compensator control................1160
Hydraulic system; bleeding air................1164
Main hydraulic pump troubleshooting guide................1166
LS (load sense) pressure; checking................1168
Compensator Valve Pressure Setting - Checking................1170
LS (load sense) Differential Pressure - Checking................1171
92 - MECHANICAL EQUIPMENT_ATTACHMENT................1174
Specifications - ripper................1175
Description ................1176
Specifications - A-frame................1177
Description-................1178
Specifications - front mounted scarifier................1179
Specifications - mid mount scarifier................1180
Description _................1181
Specifications - windrow eliminator................1182
Specifications - utility dozer blade................1184
Description_ ................1185
Specifications - one way plow................1186
Description- .................1187
Specifications - V-plow................1188
Description.................1189
Specifications - hydraulic snow wing................1190
Description..................1192
Specifications - push block................1194
Description .................1195
98 - FUNCTION FOR ROAD CONSTRUCTION................1196
Circle adjustment................1197
Pinion wear................1200
Specifications-.................1201
Description-..................1202
Circle operation................1205
Troubleshooting guide................1208
G710B to G746B circle and drawbar................1209
Circle and drawbar; removing and disassembling-................1210
Circle and drawbar; assembling and installing-................1213
Mouldboard; shimming ................1219
G780B circle and drawbar................1221
Circle and drawbar; removing and disassembling................1222
Circle and drawbar; assembling and installing................1224
Mouldboard; shimming................1228
Circle turn mechanism; disassembling................1229
Circle turn mechanism; assembling................1231
Drawbar ball stud; disassembling................1234
Drawbar ball stud; assembling................1235
Circle Setup and Timing................1236
Specifications ................1238
Description ................1239
Blade lift cylinder; removing................1243
Blade lift stirrup; removing................1245
Blade lift arm; removing................1246
Blade lift arm; installing................1248
Blade lift stirrup; installing................1249
Blade lift cylinder; installing................1250
Volvo G730, G730 VHP, G730B Motor Graders Repair & Service Manual
