Volvo G780B Motor Graders Service Parts Manual
Complete service parts manual with Electrical Wiring Diagrams for Volvo Constructions G780B Motor Graders.
Volvo G780B Motor Graders Parts Manual.pdf
Volvo G780B Motor Graders Repair Service Manual (bonus material).pdf
PRODUCT DETAILS:
Total Pages: 1,247 + 1,064 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
0 - Foreword......2
0 - GENERAL......3
03 - SPECIFICATIONS......4
Product identification plate......5
2 - ENGINE WITH MOUNTING AND EQUIPMENT......6
21 - ENGINE......7
Repair kits for engine G740B; G746B; G780B......8
Engine G710B; G720B; G726B; G730B......10
Engine G740B; G746B; G780B......12
Cylinder head G710B; G720B; G726B; G730B......14
Cylinder head G740B; G746B; G780B......16
Cylinder block G710B; G720B; G726B; G730B......18
Cylinder block G740B; G746B; G780B-[4612]......20
Cylinder block G740B; G746B; G780B......22
Crankcase ventilation G710B; G720B; G726B; G730B......24
Crankcase ventilation G740B; G746B; G780B......26
Cylinder liner and piston G710B; G720B; G726B; G730B......28
Cylinder liner and piston G740B; G746B; G780B......30
Valve mechanism G710B; G720B; G726B; G730B......32
Valve mechanism G740B; G746B; G780B......34
Timing gear casing G710B; G720B; G726B; G730B......36
Timing gear casing and gears G740B; G746B; G780B......38
Camshaft G740B; G746B; G780B......40
Crankshaft and related parts G710B; G720B; G726B; G730B......41
Crankshaft and related parts G740B; G746B; G780B......43
Flywheel housing G710B......45
Flywheel housing G720B; G726B; G730......46
Flywheel housing G740B; G746B; G780B......48
Oil drain......50
Oil sump G710B; 720B; G726B; G730B......51
Oil sump G740B; G746B; G780B......53
Engine mounts MODEL G710B - G730B S_N 35000 - 36363......55
Engine mounts MODEL G710B - G730B S_N 36364 -......57
Engine mounts MODEL G740B - G780B S_N 35000 - 36363......59
Engine mounts MODEL G740B - G780B S_N 36364 -......61
22 - LUBRICATING SYSTEM......63
Lubricating oil system G710B......64
Lubricating oil system G720B; G726B; G730B......66
Lubricating oil system G740B; G746B; G780B......68
Oil pump G740B; G746B; G780B......70
Oil filter G710B; G720B; G726B; G730B......72
Oil filter G740B; G746B; G780B......74
Housing; oil filter G740B; G746B; G780B......76
Distribution housing G740B; G746B; G780B......78
Oil filter by pass G740B; G746B; G780B......80
Oil cooler......82
Oil cooler with hoses G740B; G746B; G780B......84
23 - FUEL SYSTEM......86
Fuel pump G710B; G720B; G726B; G730B......87
Fuel filter G740B; G746B; G780B......89
Fuel tank-[3531]......91
Fuel tank......93
Fuel tank S_N 35714 - 36077......95
Fuel tank S_N 36078 - 36363......97
Fuel tank S_N 36364 - 38461......99
Fuel tank S_N 38462 -......101
Fuel circuits MODEL G710B - G730B-[3337]......103
Fuel circuits MODEL G710B - G730B......105
Fuel circuits MODEL G710B - G730B S_N 35714 -......107
Fuel circuit - standard filter MODEL G740B - G780B S_N 35000 - 35713......109
Fuel circuit MODEL G740B - G780B S_N 35714 -......111
Fuel circuit - fuel filter MODEL G740B - G780B S_N 35000 - 35713......113
Fuel pipes; fuel pump - injection pump......115
Fuel pipes; radiator - injection pump G740B; G746B; G780B......117
Fuel injection pump with fitting parts G740B; G746B; G780B......119
Pump drive G740B; G746B; G780B......121
Fuel system; oil pipe G740B; G746B; G780B......123
Fuel lines; injectors G740B; G746B; G780B......125
Injector G740B; G746B; G780B......127
Fuel cooler......129
25 - INLET & EXHAUST SYSTEM......130
Inlet manifold and exhaust manifold G710B; G720B; G726B; G730B......131
Inlet manifold and exhaust manifold G740B; G746B; G780B......133
Muffler and exhaust stack MODEL G710B - G730B......135
Muffler and exhaust stack MODEL G740B - G780B......137
Turbocharger with fitting parts E PROD......139
Turbocharger with fitting parts L PROD......141
Turbocharger with fitting parts G740B; G746B; G780B......143
Air cleaner and inlet assembly MODEL G710B - G730B......145
Air cleaner and inlet assembly MODEL G740B - G780B......147
Air cleaner installation......149
Intercooler with connectors MODEL G710B - G730B......151
Intercooler with connectors MODEL G740B - G780B - S_N'S 35000 - 35380......153
Intercooler with connectors MODEL G740B - G780B - S_N'S 35381 -......155
Intercooler G740B; G746B; G780B......157
26 - COOLING SYSTEM......159
Radiator installation MODEL G710B - G730B S_N 35000 - 35861......160
Radiator installation MODEL G710B - G730B S_N 35862 -......162
Radiator installation MODEL G740B - G780B S_N 35000 - 35861......164
Radiator installation MODEL G740B - G780B S_N 35862 -......166
Coolant filter installation MODEL G710B - G730B......168
Cooling system G740B; G746B; G780B......169
Coolant filter G740B; G746B; G780B......171
Water pump and thermostat housing G710B; G720B; G726B; G730B......173
Water pump and thermostat housing G740B; G746B; G780B......175
Water pump G740B; G746B; G780B......177
Fan housing S_N 35000 - 36786......179
Fan housing S_N 36787 -......181
Fan and fan guard S_N 35000 - 36786......183
Fan and fan guard S_N 36787 -......185
Pump drive power take-off G710B; G720B; G726B; G730B......187
Recirculating coolant heater installation MODEL G710B - G730B......189
Recirculating coolant heater installation MODEL G740B - G780B......190
Engine heater......191
27 - ENGINE CONTROL......193
Throttle controls......194
Ether Cold Start MODEL G710B - G730B......196
Ether Cold Start MODEL G740B - G780B......197
Cold Start Hydraulic Circuit MODEL G710B - G730B......198
Cold start hydraulic circuit - AWD......200
Cold Start - Hydraulic Unload MODEL G710B - G730B S_N 35000 - 36364......202
Cold Start - Hydraulic Unload MODEL G710B - G730B S_N 36365 -......203
Cold Start - Hydraulic Unload MODEL G740B - G780B S_N 35000-36364......204
Cold Start - Hydraulic Unload MODEL G740B - G780B S_N 36365......205
3 - ELECTRICAL; WARNING; INFORMATION; INSTRUMENTS......206
31 - BATTERY......207
Battery......208
Battery box S_N 35000 - 35049; 35052 - 35060......209
Battery box S_N 35050; 35051; 35061 -......211
32 - ALTERNATOR; CHARGE REGULATOR......213
Alternator S_N 35000; 35049; 35052 - 35060......214
Alternator S_N 35050; 35051; 35061 - 36363......216
Alternator S_N 36364 -......218
33 - STARTING SYSTEM......220
Starter motor with assembling details E PROD G710B; G720B; G726B; G730B......221
Starter motor with assembling details G740B; G746B; G780B......223
Starter motor E PROD G710B; G720B; G726B; G730B......224
Starter motor with assembling details L PROD G710B; G720B; G726B; G730B......225
Air pre-heater solenoid......227
Pre-heater with fitting parts G710B; G720B; G726B; G730B......229
Pre-heater G740B; G746B; G780B......231
35 - LIGHTING......233
Lights - front S_N 35000 - 36389......234
Lights - front S_N 36390 -......236
Lights - front - EEC and TÜV S_N 35000 - 36389......238
Lights - front - EEC and TÜV S_N 36390......240
Lights - rear......242
Lights - rear - EEC and TÜV......244
Extra lights - front S_N 35000 - 37693......246
Extra lights - front S_N 37694 -......248
Extra lights - rear......250
36 - OTHER ELECTRICAL EQUIPMENT......252
Direction indicator......253
Horn and back-up warning S_N 35000 - 36389......254
Horn and back-up warning S_N 36390 -......256
Rotating beacon S_N'S 35000 - 35049; 35052 - 35060......258
Rotating beacon S_N'S 35050; 35051; 35061 -......260
Windshield wiper - standard cab......262
Windshield wiper - low profile cab......264
Window wiper - rear - standard cab......266
Window wiper - rear - low profile cab......268
Washer......270
Lower front window wipers......272
Lower front window wipers - EEC S_N 35000 - 35945......274
Lower front window wipers - EEC S_N 35946 -......276
Defroster fan - front and rear......277
Switches S_N 35000 - 35049; 35052 - 35060......278
Switches S_N 35050; 35051; 35061 -......280
Electric float controls S_N 35000 - 35049; 35052 - 35060......282
Electric float controls S_N 35050; 35051; 35061 -......284
Parking brake switch S_N 35000 - 35049; 35052 - 35060......286
Parking brake switch S_N 35050; 35051; 35061 -......287
Fan controller......288
37 - CABLE; FUSE; RELAY......289
Wiring harness - front S_N 35000 - 35049; 35052 - 35060......290
Wiring harness - front S_N 35050; 35051; 35061 -......292
Wiring harness - cab S_N 35000 - 35049; 35052 - 35060-[0426]......294
Wiring harness - cab S_N 35050; 35051; 35061 - 36189......295
Wiring harness - cab S_N 36190 - 36389......296
Wiring harness - cab S_N 36390 -......297
Wiring harness - cab S_N 35000 - 35049; 35052 - 35060......298
Wiring harness - cab S_N 35050; 35051; 35061 -......300
Wiring harness - rear S_N 35000 - 35049; 35052 - 35060......302
Wiring harness - rear S_N 35050; 35051; 35061 - 36078......304
Wiring harness - rear S_N 36079 - 36363......306
Wiring harness - rear S_N 36364 -......308
Battery cable and disconnect switch S_N 35000 - 35049; 35052 - 35060......310
Battery cable and disconnect switch S_N'S 35050; 35051; 35061 - 36077......312
Battery cable and disconnect switch S_N 36078 -......314
Cable harness; engine ENG - 938022 G710B_G720B; ENG - 938538 G726B_G730B......316
Cable harness; engine ENG 938023 - G710B_G720B; ENG 938539 - G726B_G730B......318
Cable harness; engine ECU G740B; G746B; G780B......320
Electrical distribution box S_N 35000 - 35049; 35052 - 35060......322
Electrical distribution box S_N 35050 - 35051; 35061 -......324
38 - INSTRUMENT; SENSOR; WARNING & INFORMATION SYSTEM......326
Speedometer and hour meter......327
Gauges......329
Contronics and display unit......330
39 - MISCELLANEOUS......332
Radio_cassette player S_N'S 35000 - 35520......333
Radio_cassette player S_N 35521 -......335
Converters - 24 volt - 12 volt S_N 35000 - 35049; 35052 - 35060......337
Converters - 24 volt - 12 volt S_N 35050; 35051; 35061 -......339
Equalizer - 24 volt - 12 volt S_N 35050; 35051; 35061 - 36642......341
Equalizer - 24 volt - 12 volt 36443 -......343
4 - POWER TRANSMISSION......345
41 - CLUTCH; TORQUE CONVERTER......346
Clutch......347
Clutch slave cylinder......350
Clutch master cylinder......352
Clutch booster......354
Clutch linkage S_N'S 35000 - 36389......356
Clutch linkage S_N 36390 -......358
42 - TRANSMISSION; HYDRAULIC CONTROL......360
Transmission......361
Transmission hydraulic circuit MODEL G710B - G730B - S_N 35000 - 36077......364
Transmission hydraulic circuit MODEL G710B - G730B - S_N 36078 - 36879......367
Transmission hydraulic circuit MODEL G710B - G730B - S_N 36880 -......370
Transmission hydraulic circuit MODEL G740B - G780B - S_N 35000 - 36077......373
Transmission hydraulic circuit MODEL G740B - G780B - S_N 36078 - 36079......376
Transmission hydraulic circuit MODEL G740B - G780B - S_N 36880 -......379
Input clutch and shaft......382
Reverse clutch and shaft......384
Output clutch and shaft......386
Intermediate clutch and shaft......388
Transmission case hydraulics......390
Transmission control valves......392
Transmission controller......394
Transmission mounts S_N 35000 - 36077......396
Transmission mounts S_N 36078 - 36494......397
Transmission mounts S_N 36495 -......398
44 - HYDROSTATIC DRIVE......399
Main hydraulic ciruit - AWD - front MODEL G726B; G746B - S_N 35000 - 36077......400
Main hydraulic ciruit - AWD - front MODEL G726B; G746B - S_N 36078 -......402
Main hydraulic ciruit - AWD - rear MODEL G726B; G746B - S_N 35000 - 36077......404
Main hydraulic ciruit - AWD - rear MODEL G726B; G746B - S_N 36078 -......407
Hydraulic oil cooler circuit - AWD......410
Main hydraulic pump - AWD......412
Hydraulic oil tank - AWD S_N 35000 - 35187......414
Hydraulic oil tank - AWD S_N 35188 -......416
Hydraulic circuit - wheel motors - AWD S_N 35000 - 37084......418
Hydraulic circuit - wheel motors - AWD S_N 37085 -......420
Speed sensors - AWD......422
Harnesses; sensors units and controller - AWD S_N 35000 - 36363......423
Harnesses; sensors units and controller - AWD S_N 36364 -......425
Wheel motor assembly - AWD......427
Motor bypass valve - AWD......428
Two - Speed Valve Assembly - Awd......429
Free wheeling valve - AWD......430
Hydraulic circuit - free wheeling S_N 35000 - 36077......431
Hydraulic circuit - free wheeling S_N 36078 -......433
Charge circuit - AWD MODEL G726B S_N 35000-37291......435
Charge circuit - AWD MODEL G726B S_N 37292......437
Charge circuit - AWD MODEL G746B - S_N 35000 - 36077......439
Charge circuit - AWD MODEL G746B - S_N 36078 - 37291......441
Charge circuit - AWD S_N 37292 -......443
Pump gearbox - AWD S_N 35000 - 35565......445
Pump gearbox - AWD S_N 35566 -......447
Hydraulic pumps - AWD......449
Charge pump - AWD......450
45 - PROPELLER SHAFT......451
Pump drive shaft MODEL G710B - G730B - S_N 35000 - 35049; 35052 - 35060......452
Pump drive shaft MODEL G710B - G730B - S_N 35050; 35051; 35061 - 36742......454
Pump drive shaft MODEL G710B - G730B - S_N 36743 -......456
Pump drive shaft MODEL G740B - G780B - S_N 35000 - 35049; 35052 - 35060......458
Pump drive shaft MODEL G740B - G780B - S_N 35050; 35051; 35061 - 36742......460
Pump drive shaft MODEL G740B - G780B - S_N 376243 -......462
Pump drive shaft - AWD MODEL G726B - S_N 35000 - 35049; 35052 - 35060......464
Pump drive shaft - AWD MODEL G726B-35050;35051;35061-36408 EXCLUDING 36352......466
Pump drive shaft - AWD G726B SN 36352; 36409 -......468
Pump drive shaft - AWD MODEL G746B - S_N 35000 - 35049; 35052 - 35060......470
Pump drive shaft - AWD MODEL G746B - S_N 35050; 35051; 35061 - 36405......472
Pump drive shaft - AWD G746 S_N 36406 -......474
Upper drive shaft......476
Lower drive shaft......477
46 - FRONT AXLE; REAR AXLE......478
Tandems S_N 35000 - 35988......479
Tandems S_N 35989 -......482
Final drive - differential carrier assembly MODEL G710B - G726B - S_N 35000 - 35623......485
Final drive - differential carrier assembly MODEL G710B - G726B - S_N 35624 -......488
Final drive - differential carrier assembly MODEL G730B - G746B - S_N 35000 - 35698......491
Final drive - differential carrier assembly MODEL G730B - G746B - S_N 35699 -......494
Final drive; differential; oil pump and input pinion MODEL G780B......497
Final drive - housing assembly MODEL G710B - G726B - S_N 35000 - 35623......499
Final drive - housing assembly MODEL G710B - G726B - S_N 35624 -......501
Final drive - housing assembly MODEL G730B - G746B - S_N 35000 - 35698......503
Final drive - housing assembly MODEL G730B - G746B - S_N 35699 -......505
Final drive - housing assembly MODEL G780B......507
Final drive - differential lock MODEL G710B - G726B - S_N 35000 - 35623......510
Final drive - differential lock MODEL G710B - G726B - S_N 35624 -......512
Final drive - differential lock MODEL G730B - G746B - S_N 35000 - 35698......514
Final drive - differential lock MODEL G730B - G746B - S_N 35699 -......516
Final drive - differential lock MODEL G780B......518
Differential hydraulic circuit MODEL G710B - G746B......520
Differential hydraulic circuit MODEL G780B - S_N 35000 - 36077......522
Differential hydraulic circuit MODEL G780B - S_N 36078 - 37571......524
Differential hydraulic circuit MODEL G780B S_N 37572 -......526
49 - MISCELLANEOUS......528
Transmission oil cooler......529
Control module - AWD S_N 35000 - 35049; 35052 - 35060......530
Control module - AWD S_N 35050; 35051; 35061 -......532
5 - BRAKE......534
51 - WHEEL BRAKE......535
Oil disc brakes......536
52 - HYDRAULIC BRAKE SYSTEM......538
Brake linkage S_N'S 35000 - 36389......539
Brake linkage S_N 36390 -......541
Brake master cylinder......543
Brake circuit......545
Brake power booster......547
55 - PARKING BRAKE......549
Parking brake 35000 - 35224......550
Parking brake S_N 35225 - 36816......552
Parking brake S_N 36817-......555
6 - STEERING......558
62 - STEERING AXLE......559
Front axle MODEL G710B - G746B......560
Hub and knuckle MODEL G710B - G746B......562
Front axle drag link MODEL G710B - G746B......564
Front axle and knuckle MODEL G780B......566
Front axle spindles MODEL G780B......568
Front axle drag link MODEL G780B......570
Front axle hub and knuckle - AWD......572
64 - STEERING......574
Steering column S_N 35000-35398......575
Steering column S_N 35399 -......577
Control head assembly S_N 35000 - 35049; 35052 - 35060......579
Control head assembly S_N 35050; 35051; 35061 -......581
Pedestal adjuster......583
Steering circuit - standard S_N 35000-35398......584
Steering circuit - standard S_N 35399 -......586
Steering circuit - main - AWD S_N 35000-35398......588
Steering circuit - main - AWD S_N 35399 -......590
Steering cylinders MODEL G710B - G746B......592
Steering cylinders MODEL G780B......594
Supplemental steering circuit - main - standard S_N 35000-35398......596
Supplemental steering circuit - main - standard S_N 35399 -......598
Supplemental steering circuit - main - AWD S_N 35000-35398......600
Supplemental steering circuit - main - AWD S_N 35399 -......602
Supplemental steering circuit - standard S_N 35000 - 36077......604
Supplemental steering circuit - standard S_N 36078 -......606
Supplemental steering circuit - AWD......608
Secondary steering box S_N 35000 - 36836......610
Secondary steering box S_N 36837 -......612
Wheel lean circuit......614
Wheel lean cylinders MODEL G710B; G720B......616
Wheel lean cylinders MODEL G726B - G746B......618
Wheel lean cylinders MODEL G780B......620
7 - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT......622
71 - FRAME......623
Frames S_N 35000 - 35187......624
Frames S_N 35188 - 35928......626
Frames S_N 35929 - 36077......628
Frames S_N 36078 - 37084......630
Frames S_N 37085 -......632
Transmission guard......634
Covers......635
Push block......637
74 - FRAME LINK......638
Articulation hinge......639
Articulation hydraulic circuit......641
Articulation cylinders MODEL G710B - G726B......643
Articulation cylinders MODEL G730B - G780B......645
Articulation indicator S_N 35000 - 35049; 35052 - 35060......647
Articulation indicator S_N 35050; 35051; 35061 -......649
77 - WHEELS; TRACKS; TYRE; HUB; DRUM......651
Wheels and rims S_N 35000 - 35049; 35052 - 35060......652
Wheels and rims S_N 35050; 35051; 35061 -......655
Spare wheel hanger MODEL G780B......658
8 - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE......659
81 - CAB; NAKED; CANOPY......660
Cab - standard and Canopy S_N 35000 - 35049; 35052 - 35060......661
Cab - standard and Canopy S_N 35050; 35051; 35061 -......663
Cab - low profile S_N 35000 - 35049; 35052 - 35060......665
Cab - low profile S_N 35050; 35051; 35061 -......667
Cab - Split Rops and Split Canopy S_N 35050; 35051; 35061 -......669
Cab - External parts S_N 35000 - 36389......672
Cab - External parts S_N 36390 -......674
Cab mounts......676
82 - ENGINE HOOD; MUDGUARD; FOOT STEP......677
Engine cowl MODEL G710B - G730B......678
Engine cowl MODEL G740B - G780B......680
Radiator housing MODEL G710B - G730B S_N 35000 - 35049; 35052 - 35060......682
Radiator housing MODEL G710B - G730B S_N 35050; 35051; 35061 - 35861......684
Radiator housing MODEL G710B - G730B S_N 35862 - 36786......687
Radiator housing MODEL G710B - G730B S_N 36787 -......689
Radiator housing MODEL G740B - G780B S_N 35000 - 35049; 35052 - 35060......692
Radiator housing MODEL G740B - G780B S_N 35050; 35051; 35061 - 35861......694
Radiator housing MODEL G740B - G780B S_N 35862 - 36786......697
Radiator housing MODEL G740B - G780B S_N 36787 -......699
Mudguards - front......701
Mudguards - rear S_N 35000 - 35049; 35052 - 35060......702
Mudguards - rear S_N 35050; 35051; 35061 -......704
Cab step......706
83 - DOORS; HATCH; COVER PLATE; (all)......707
Doors and latch......708
Door lock and handle......710
84 - TRIM PART; OUTSIDE; GLASS; SEALING MOULDING......712
Decals......713
Decals - grader models......715
Safety signs - English_French......716
Safety signs - Spanish_Portuguese......719
Safety signs - Greek_Dutch......722
Safety signs - Brazilian_German......725
Mirrors S_N 35000 - 36389......728
Mirrors S_N 36390 -......730
Cab Glass S_N 35000 - 35049; 35052 - 35060......732
Cab Glass S_N'S 35050; 35051; 35061 -......734
Lower front vent window......736
Side slider window S_N 35000 - 35049; 35052 - 35060......738
Slide slider window S_N 35050; 35051; 35061 -......740
85 - CAB INTERIOR; UPHOLSTERY......742
Sound suppression and trim - upper cab......743
Sound suppression and trim - lower cab S_N 35000 - 35049; 35052 - 35060......745
Sound suppression and trim - lower cab S_N 35050; 35051; 35061 -......747
Bucket seat......749
Suspension seat installation......750
Suspension seat assembly......751
Air suspension seat assembly......753
Operator comfort kit S_N 35000 - 35049; 35052 - 35060......754
Operator comfort kit S_N 35050; 35051; 35061 -......756
86 - PROTECTIVE EQUIPMENT......757
Sound suppression - engine cowl......758
87 - AIR CONDITIONING UNIT......760
Heater installation - non-pressurized S_N 35050; 35051; 35061 -......761
Heater and air conditioning installation S_N 35000 - 35049; 35052 - 35060......763
Heater and air conditioning installation - pressurized S_N 35050; 35051; 35061 -......765
Cab heater and air conditioning......767
Cab heater pipes - engine......769
Air conditioning condenser; compressor and hoses S_N'S 35000 - 35049; 35052 - 35060......771
Air conditioning condenser; compressor and hoses S_N'S 35050; 35051; 35061 -......773
Air conditioning receiver_dryer and hose S_N'S 35000 - 35713......775
Air conditioning receiver_dryer and hose S_N'S 35714 -......777
Air conditioning compressor mounting brackets......779
88 - INTERIOR EQUIPMENT......781
Angle meter installation......782
Cab blind - rear window - standard cab......783
Seat belts......784
89 - MISCELLANEOUS......785
Toolbox; Tools and paint S_N 35000 - 35049; 35052 - 35060......786
Toolbox; Tools and paint S_N 35050; 35051; 35061 -......788
Slow moving vehicle sign.......790
9 - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPMENT; MISCELLANEOUS......791
91 - WORKING HYDRAULIC; SERVO HYDRAULICS......792
Main Hydraulic circuit - front MODEL G710B - G730B - S_N 35000 - 36077......794
Main Hydraulic circuit - front MODEL G710B - G740B - S_N 36078 -......796
Main Hydraulic circuit - rear MODEL G710B - G730B - S_N 35000 - 36077......798
Main Hydraulic circuit - rear MODEL G710B - G740B - S_N 36078 -......800
Main Hydraulic circuit - front MODEL G740B - G780B - S_N 35000 - 36077......803
Main Hydraulic circuit - front MODEL G780B - S_N 36078 -......805
Main Hydraulic circuit - rear MODEL G740B - G780B - S_N 35000 - 36077......807
Main Hydraulic circuit - rear MODEL - G780B - S_N 36078 -......809
Hydraulic oil tank S_N 35000 - 35187......812
Hydraulic oil tank S_N 35188 - 36077......814
Hydraulic oil tank S_N 36078 -......816
Hydraulic oil cooler......818
Hydraulic filter S_N'S 35000 - 35049; 35052 - 35060......819
Hydraulic filter S_N'S 35050; 35051; 35061 - 36077......821
Hydraulic filter S_N 36078 -......823
Load sense relief valve......825
Manifold valve MODEL G710B - G726B......826
Manifold valve MODEL G730B - G780B......829
Float valves......832
Auxiliary manifold valve - 3 bank......834
Auxiliary manifold valve - 5 bank......836
Priority valve......838
Cushion valve......839
Fan control valve......840
Counterbalance valve......841
Counterbalance valve - EEC......843
Shuttle valve......845
Control levels......846
Controls - auxilary manifold - 3.5 bank......848
Solenoid Valve......850
Main hydraulic pump......852
Compensator......854
Transmission hydraulic pump......855
Auxilary manifold valve - hydraulic circuit S_N 35000 - 36077......857
Auxilary manifold valve - hydraulic circuit S_N 36078 -......859
Auxilary hydraulic circuits......861
Rear auxiliary hydraulic circuits......863
Rear auxilary hydraulic circuit - quick disconnect......865
92 - MECHANICAL EQUIPMENT_ATTACHMENT......867
Towing hook......869
Ripper S_N 35000 - 37377......870
Ripper S_N 37378 -......872
Ripper circuit S_N 35000 - 37337......874
Ripper circuit S_N 37338 -......876
Ripper cylinder S_N 35000 - 37337......878
Ripper cylinder S_N 37338 -......880
Mid mount scarifier......881
Mid mount scarifier hydraulic circuit......883
Mid mount scarifier; front mount scarifier and bulldozer cylinders......885
Front mount scarifier and circuit S_N 35000 - 36339......887
Front mount scarifier and circuit S_N 36340 - 36990......889
Front Mount Scarifier S_N 36991 -......891
Attaching frame S_N 35000 - 36990......892
Parallel lift S_M 36991 -......894
Attaching Frame Hydraulic Cylinder S_N 36991 -......896
Parallel Lift Circuit S_N 36991 -......897
Plow circuit......899
Plow cylinder......901
Windrow eliminator S_N 35000 - 35928......903
Windrow eliminator S_N 35929 - 36463......905
Windrow eliminator S_N 36464 -......907
Windrow eliminator - moldbard assembly S_N 35000 - 36463......909
Windrow eliminator - moldbard assembly S_N 36464 -......911
Windrow eliminator circuit......913
Windrow eliminator cylinder......915
Dozer blade and circuit S_N'S 35000 - 36339......917
Dozer blade and circuit S_N 36340 - 36990......919
Dozer Blade Assembly S_N 36991 -......921
Lo-bank rear mount wing installation......923
Hi-bank rear mount wing installation......925
Wing installation......928
Wing stand-off arm installation......930
Lo-bank wing braces......932
Hi-bank wing braces......934
Wing slide hydraulic circuit......936
Wing slide cylinder......938
Wing lift hydraulic circuit......940
Wing lift cylinder......942
One-way plow S_N 35000 - 37124......944
One-way plow S_N 37125 -......946
Chain lift v-plow......948
Down pressure v-plow......950
Lifting and tie-down brackets......953
98 - FUNCTION FOR ROAD CONSTRUCTION......955
Moldboards MODEL G710B - G746B......957
Moldboards MODEL G780B......960
Moldboard installation MODEL G710B; S_N 35000 - 35049; 35052 - 35060......962
Moldboard installation MODEL G710B; S_N 35050; 35051; 35061 -......964
Moldboard installation MODEL G720B - G746B S_N 35000 - 35049; 35052 - 35060......966
Moldboard installation MODEL G720B - G746B S_N 35050; 35051; 35061 -......968
Moldboard installation MODEL G780B; S_N 35000 - 35049; 35052 - 35060......970
Moldboard installation MODEL G780B; S_N 35050; 35051; 35061 -......972
Blade tilt circuit MODEL G710B......974
Blade tilt circuit MODEL G720B - G780B......976
Blade tilt cylinder MODEL G710B......978
Blade tilt cylinder MODEL G720B - G780B......980
Blade lift - MBCS MODEL G710B - G746B......982
Blade lift - HMBCS MODEL G780B......984
Blade lift cicruit - counterbalance valve......986
Blade lift ciruit - float valve......988
Blade lift cylinders S_N 35000 - 35049; 35052 - 35060......990
Blade lift cylinders S_N 35050; 35051; 35061 -......993
Accumulators......996
Slide shift circuit and swivel joint......998
Slide shift cylinder MODEL G710B - G726B; S_N 35000 - 35049; 35052 - 35060......1001
Slide shift cylinder MODEL G710B - G730B; S_N 35050; 35051; 35061 -......1003
Slide shift cylinder MODEL G740B - G746B; S_N 35000 - 35049; 35052 - 35060......1005
Slide shift cylinder MODEL G730B - G746B; S_N 35050; 35051; 35061 -......1007
Slide shift cylinder MODEL G780B; S_N 35000 - 35049; 35052 - 35060......1009
Slide shift cylinder MODEL G780B; S_N 35050; 35051; 35061 -......1011
Circle turn - front MODEL G710B-G746B S_N 35000-36444; 36448; 36452; 36453......1013
Circle turn - front MODEL G710B-G746B S_N 36445-36447; 36449-36451; 36454-......1015
Circle turn - front MODEL G720B-G746B......1017
Circle turn - rear MODEL G710B - G746B......1018
Circle turn - front - HMBCS MODEL G780B S_N 35000-36444; 36448; 36452 & 36453......1020
Circle turn - front - HMBCS MODEL G780B S_N 36445-36447; 36449-36451; 36454 -......1022
Circle turn - rear - HMBCS MODEL G780B......1024
Circle turn circuit......1026
Circle turn cylinders MODEL G710B - G746B......1028
Circle turn cylinder MODEL G780B......1030
Circle turn valve......1032
Circle shift circuit MODEL G710B - G730B......1034
Circle shift circuit MODEL G740B - G780B......1036
Circle shift cylinders MODEL G710B - G746B......1038
Circuit shift cylinder MODEL G780B......1040
Lock cylinder circuit - MBCS_HMBCS......1042
Lock cylinder and wiring harness - MBCS_HMBCS......1044
Drawbar - front MODEL G710 - G746B......1046
Drawbar - rear - MBCS MODEL G710B - G746B......1048
Drawbar - front - HMBCS MODEL G780B......1050
Drawbar - rear - HMBCS MODEL G780B......1052
99 - MISCELLANEOUS......1054
Anti-vandalism equipment S_N 35000 - 35049; 35052 - 35060......1055
Anti-vandalism equipment S_N 35050; 35051; 35061 -......1057
Remote greasing S_N 35000 - 36311......1059
Remote greasing S_N 36312 -......1060
Tire pump S_N 35000 - 35238......1061
Tire pump S_N 35239 -......1063
0 - Foreword......2
0 - 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
1 - 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
Arrival Inspection; according to Inspection Programme......65
Delivery Inspection; according to Inspection Programme......66
Maintenance of Stored Machines; 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-4746......103
Safety when working with batteries......104
Battery; charging......106
Safety when working with air-conditioning refrigerant......108
Safety when working on hydraulic systems......110
Safety concerns everybody!......111
Electric welding......112
2 - ENGINE WITH MOUNTING AND EQUIPMENT......114
20 - GENERAL......115
Description; D7D_{42-48}......116
Description; D10B_{42-28}......117
General description ......118
21 - ENGINE......119
Specifications; D7D - weight......120
Specifications; D10B - weight......121
Specifications; D7D - capacities_{39-16}......122
Specifications; D10B - capacities_{38-57}......123
Engine; removing_{38-21}......124
Engine; removing_{37-58}......128
Specifications; D7D - tightening torques_{37-25}......132
Specifications; D10B - tightening torques_{37-07}......133
Cylinder compression; testing......134
Cylinder head - D10B; description_{34-55}......139
Cylinder head - D7D; description_{34-34}......141
Cylinder block - D10B; description......143
Oil trap - D10B; description......144
Cylinder liner; piston; D7D description......145
Cylinder liners; D10B description......148
Cylinder liner; piston; D10B......150
Valves; adjusting_{31-10}......152
Valves; adjusting_{30-48}......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-2701......165
Connecting rod; D7D......167
Crankshaft; D7D......169
Torsional vibration damper; D7D......171
Crankshaft rear oil seal; replacing......173
Crankshaft and vibration damper; D10B......175
22 - LUBRICATING SYSTEM......177
Specifications; D7D......178
Lubrication oil circuit; D7D engine– Models G710B to G730B......179
Lubrication system - D10B; description......182
General; Lubrication oil pump D7D......185
23 - FUEL SYSTEM......187
Fuel system; description_{20-11}......188
Fuel system; description_{19-51}......189
Fuel system components; D10B......197
Fuel flow; D10B......199
Fuel feed pump - D10B; description......201
Water trap; D10B......203
Injection pump - D10B; specifications......204
Injection pump - D10B; description......205
Fuel shut-off valve; D10B......207
Overflow valve; D10B......209
Injectors - D10B; specification......210
Injectors - D10B; description......211
Injectors; replacing......214
Injection system - D7D; E-ECU overview......220
25 - INLET & EXHAUST SYSTEM......224
Exhaust system - D7D engine......225
Exhaust system - D10B engine......227
General ......229
Air cleaner......231
Preheating coil; D10B......233
Intercooler D10B; specifications......235
Intercooler; D10B......236
26 - COOLING SYSTEM......238
Cooling system - D7D engine; description......239
Cooling system - D10B engine; description......242
27 - ENGINE CONTROL......245
Accelerator_decelerator pedal......246
Hand Throttle......248
VHP (Variable Horsepower)......250
3 - ELECTRICAL; WARNING; INFORMATION; INSTRUMENTS......251
30 - GENERAL......252
Description ......253
Operation......255
General ......256
31 - BATTERY......268
Description-......269
Specifications-......270
Non-maintenance batteries; testing......271
Explosion hazard......272
Battery box......273
32 - ALTERNATOR; CHARGE REGULATOR......274
Voltage regulator......275
Specifications ......276
Alternator; description......277
33 - STARTING SYSTEM......278
Specifications ......279
Starting system; general description......280
Neutral start relay......281
Electric air - preheater......282
35 - LIGHTING......283
General ......284
Lighting; front......285
Lighting; rear......286
Lighting; interior......287
Lighting; side......288
36 - OTHER ELECTRICAL EQUIPMENT......289
Description ......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 ......302
Cable; Battery isolation switch......303
Electrical component list......304
Wiring diagram 1 – Main diagram_Positive feeds_Chassis connections_{47-29}......311
Wiring diagram 1 – Main diagram_Positive feeds_Chassis connections_{47-08}......314
Wiring diagram 2 – Positive feed_Chassis connection I-ECU_E-ECU_{46-38}......317
Wiring diagram 2 – Positive feed_Chassis connection I-ECU_E-ECU_{46-17}......319
Wiring diagram 3 – Engine_{45-45}......321
Wiring diagram 3 – Engine_{45-24}......324
Wiring diagram 4 – D7 Engine ECU_{44-53}......327
Wiring diagram 4 – D7 Engine ECU_{44-33}......329
Wiring diagram 5 – D10 Engine ECU_{43-48}......332
Wiring diagram 5 – D10 Engine ECU_{43-28}......336
Wiring diagram 6 – D7; D10 Engine ECU_{42-57}......338
Wiring diagram 6 – D7; D10 Engine ECU_{42-37}......341
Wiring diagram 7 – Accelerator pedal_Fuel level_{42-02}......343
Wiring diagram 7 – Accelerator pedal_Fuel level_{41-41}......346
Wiring diagram 8 – Fan ECU_{41-10}......349
Wiring diagram 8 – Fan ECU_{40-46}......352
Wiring diagram 9 – Headlights_Turn signals_Horn_{40-09}......355
Wiring diagram 9 – Headlights_Turn signals_Horn_{39-45}......359
Wiring diagram 10 – EEC Headlights and flashers_{39-15}......362
Wiring diagram 10 – EEC Headlights and flashers_{38-53}......365
Wiring diagram 11 – Work lights_{38-22}......368
Wiring diagram 11 – Work lights_{38-02}......371
Wiring diagram 12 – EEC Worklights_{37-31}......374
Wiring diagram 12 – EEC Worklights_{37-10}......377
Wiring diagram 13 – Windshield wiper systems_{36-40}......380
Wiring diagram 13 – Windshield wiper systems_{36-19}......383
Wiring diagram 14 – 25 amp_60 amp converter_equalizer_{35-49}......387
Wiring diagram 14 – Rotating beacons_ Differential lock_MBCS_Articulation sensor_{35-28}......390
Wiring diagram 15 – Transmission ECU_{34-52}......393
Wiring diagram 15 – Rotating beacons_differential lock_MBCS_{34-31}......396
Wiring diagram 16 – AWD ECU_{34-01}......399
Wiring diagram 16 – Transmission ECU_{33-40}......402
Wiring diagram 17 – AWD ECU_{33-09}......406
Wiring diagram 17 – AWD ECU_{32-47}......410
Wiring diagram 18 – AWD ECU_{32-12}......414
Wiring diagram 18 – Sensors_{31-50}......419
Wiring diagram 19 – Sensors_{31-20}......422
Wiring diagram 19 – Brake circuit; lights_{30-59}......425
Wiring diagram 20 – Brake circuit; lights_{30-28}......428
Wiring diagram 20 – Secondary steering_{30-07}......431
Wiring diagram 21 – Climate control unit_{29-28}......434
Wiring diagram 21 – Secondary steering_{28-51}......438
Wiring diagram 22 – Front and rear defroster fans_{28-19}......441
Wiring diagram 22 – Climate control unit_{27-59}......444
Wiring diagram 23 – Front defroster fans_{27-27}......448
Wiring diagram 23 – Radio_Heated mirrors_{27-06}......451
Wiring diagram 24 – Blade float module_{26-35}......453
Wiring diagram 24 – Radio_Dome light_Heated mirrors_{26-14}......456
Wiring diagram 25 – Front float module_{25-44}......459
Wiring diagram 25 – Blade float module_{25-23}......462
Wiring diagram 26 – Tire pump_{24-53}......465
Wiring diagram 26 – Front float module_{24-31}......467
Wiring diagram 27 – Rear float module_{24-00}......470
Wiring diagram 27 – Communication; E-ECU_I-ECU_{23-40}......472
Wiring diagram 28 – Tire pump_Power outlet_{23-09}......475
Wiring diagram 28 – Keyboard_{22-48}......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 ......497
Diagnostic software......513
Description of tests......514
4 - POWER TRANSMISSION......515
41 - CLUTCH; TORQUE CONVERTER......516
Specifications; engine clutch......517
Description and operation; engine clutch......519
Clutch housing; removing......523
Clutch assembly; removing......526
Clutch assembly; installing......528
Clutch housing; installing......530
Bearing support housing; installing......532
Clutch Slave Cylinder and Pedal Free Play; adjusting-1328......534
Clutch Slave Cylinder and Pedal Free Play; adjusting......537
Specifications; clutch master cylinder and booster circuit......539
Description; clutch master cylinder and booster......540
42 - TRANSMISSION; HYDRAULIC CONTROL......544
Specifications ......545
Description; 8400 transmission......547
Transmission components......550
Transmission ECU and shifter assembly......552
Transmission oil circuit and operation......555
Transmission hydraulic circuit and operation......560
Transmission troubleshooting......562
Error codes......566
Hydraulic system troubleshooting......569
Transmission; removing......575
Transmission; installing......579
44 - HYDROSTATIC DRIVE......583
Specifications; All Weel Drive system......584
Description; AWD system......585
AWD electrical system......594
AWD hydraulic system......602
All Wheel Drive Operational Checks......611
AWD test procedure and test port locations......613
AWD error codes and troubleshooting......618
All Wheel Drive Pump and Motor Priming Procedure......632
46 - FRONT AXLE; REAR AXLE......635
Specifications; SR final drive......636
Description; SR final drives......637
Operation; SR final drive......638
Lock_unlock function ......640
Final drive assembly; removing ......641
Tandem; removing ......643
Final drive assembly; installing ......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
50 - GENERAL......676
Overview......677
51 - WHEEL BRAKE......681
General ......682
Description ......683
Brake circuit hydraulic schematic......687
Electrical schematic ......689
Electric motor_pump troubleshooting......692
Oil disc brake assembly; removing......695
Oil disc brakes; disassembling......698
Oil Disc Brake - Cleaning and Inspection......704
Brake housing; pre-assembling......706
Tandem axle oil seal installation......708
Tandem axle seal; installing......710
Oil disc brakes ; assembling......716
Oil Disc Brakes - Bench Adjustment......721
Oil disc brake; installing......723
52 - HYDRAULIC BRAKE SYSTEM......727
Specifications-......728
Description-......729
Brake master cylinder and power booster; removing......739
Power booster; disassembling......740
Power booster; assembling......742
Brake master cylinder; disassembling......744
Brake master cylinder; assembling......747
Brake master cylinder and power booster; installing......750
Adjustment checks......752
55 - PARKING BRAKE......754
Specifications- ......755
Description ......757
Parking brake; manually releasing......759
Hydraulic diagram......761
Electrical schematic......764
Parking brake troubleshooting......766
Parking brake overhaul procedure......767
Parking brake assembly; removing......770
Parking brake; disassembling......771
Parking brake; pre-assembling......773
Parking brake; assembling......774
Parking brake; installing......776
Parking brake; adjusting......778
Parking brake intensifier......780
Parking brake valve assembly......782
6 - STEERING......784
60 - GENERAL......785
Steering system; description......786
Tightening torques ......789
Front axle toe-in ......790
Description ......791
Tightening torques-......796
Front axle toe-in......797
Front axle pivot (G710B to G746B)......798
62 - STEERING AXLE......799
Wheel hub; removing......801
Wheel hub; installing......803
Steering axle – Disassembly......805
Preparation and wheel; removing......806
Tie bar; removing......808
Tie bar; installing......809
Steering cylinder; removing......810
Steering cylinder; installing......812
Knuckle; removing......813
Knuckle; installing......814
Drag link; removing......815
Drag link; installing......817
Pivot block; removing and disassembling......818
Pivot block; assembling and installing......819
Wheel lean cylinder; removing......820
Wheel lean cylinder; installing......822
Front axle frame; removing......823
Front axle frame; installing......825
Wheel; installing......827
Axle disassembly and assembly - G780B......828
Front Axle Pivot Pin Bearings; disassembling......829
Front Axle Pivot Pin Bearings; assembling......831
King Pin Bearings and Spindle Thrust Bearing; disassembling......834
King Pin Bearings and Spindle Thrust Bearing; assembling......836
Wheel bearings; disassembling......838
Wheel bearings; assembling......840
Pivot Block Adjustments......842
Wheel Bearing; cleaning and inspecting......843
Spindle; removing and disassembling......845
Spindle; assembling and installing......847
Toe - in; adjustment_{019-28}......849
Toe - in; adjustment_{019-10}......850
64 - STEERING......852
Wheel lean hydraulic schematic - Image......854
Secondary steering hydraulic schematic - Image......855
Steering hydraulic schematics - Image......856
Specifications ......857
Description ......858
Steering column; disassembling......860
Steering column; assembling......862
Steering Column - Cleaning and Inspection......863
Steering control unit; removing......864
Steering control unit; installing......865
Specifications-......866
Description -......867
Steering hydraulic schematics......868
Steering system troubleshooting guide......870
Steering control unit troubleshooting......872
Specifications .......875
Components.......876
Steering control unit overhaul procedure......878
Steering control unit; disassembling......879
Steering control unit; assembling......884
Steering Control Unit - Bleeding Procedure......890
Specifications.......891
Description.......892
Function.......894
Specifications-.......896
General description......898
Secondary steering; specifications......899
Secondary steering; description......900
Secondary steering; component location......902
Secondary steering hydraulic schematic......905
Secondary steering troubleshooting......907
Hydraulic cylinder specifications......908
Description -.......910
Wheel lean hydraulic schematic......912
7 - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT......914
71 - FRAME......915
Description ......916
74 - FRAME LINK......918
Tightening torques......919
Articulation hinge......920
Articulation hinge – Preparation for disassembly......923
Articulation hinge; disassembling......925
Cleaning and inspection......929
Articulation Hinge; assembling......930
Articulation hydraulics......934
Articulation Indicator - Setup and Adjustment......937
77 - WHEELS; TRACKS; TYRE; HUB; DRUM......941
Wheels; specifications......942
General description – Wheels......943
Tire troubleshooting guide......945
8 - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE......947
87 - AIR CONDITIONING UNIT......948
Specifications ......949
Description ......951
Operating principle......952
HVAC system components......954
Cab air distribution_{55-15}......959
Cab air distribution_{54-55}......961
Basic operational checks......963
Air conditioning system......964
Climate control unit electrical schematic......965
Troubleshooting guide Low pressure gauge shown on left; high pressure gauge shown on right.......967
HVAC routine maintenance......970
Air conditioner service......972
Air Conditioning System Repairs......973
88 - INTERIOR EQUIPMENT......975
Description ......976
Control levers; disassembling......980
Control Levers - Cleaning and Inspection......983
Control levers; assembling......984
Pedestal Locking Strut - Setup......986
Locking Strut - Troubleshooting......987
9 - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPMENT; MISCELLANEOUS......988
90 - GENERAL......989
Main hydraulic schematic; EEC float valves – Sheet 4 - Image......990
Main hydraulic schematic; EEC – Sheet 3- Image......991
Main hydraulic schematic; float valves – Sheet 2 - Image......992
Main hydraulic schematic - sheet 1 - Image......993
Main hydraulic schematic - sheet 1......994
Main hydraulic schematic; float valves – Sheet 2......998
Main hydraulic schematic; EEC – Sheet 3......1001
Main hydraulic schematic; EEC float valves – Sheet 4......1004
Specifications- ......1007
Description-......1008
Hydraulic components; location......1010
Hydraulic system troubleshooting guide......1013
91 - WORKING HYDRAULIC; SERVO HYDRAULICS......1017
Auxiliary control valves – Sheet 5......1020
Hydraulic Oil Filler Cap - Prevention of Contaminants......1022
Hydraulic oil cleanliness......1024
Specifications-......1030
Description-......1032
Main control valve spool flow rates......1033
Main control valve section......1035
Main control valve troubleshooting......1039
Main control valve overhaul procedure......1041
Main control valve; removing......1042
Main control valve; disassembling......1043
Valve section; disassembling......1045
Valve section; assembling......1048
Main control valve; assembling......1050
Main control valve; installing......1053
Main Control Valve Bleeding Procedure......1054
Specifications ......1056
Description ......1057
Hydraulic swivel joint; removing......1059
Hydraulic swivel joint; disassembling......1062
Hydraulic swivel joint; assembling......1065
Hydraulic swivel joint; installing......1068
Specifications.......1071
Description.......1072
Components......1073
Circle Turn Valve Overhaul Procedure......1076
Circle turn valve; removing......1077
Circle turn valve; disassembling......1079
Circle turn valve; assembling......1083
Circle turn valve; installing......1086
Circle Timing......1088
Specifications......1091
Description.......1093
Specifications ......1094
Test procedures ......1095
Description ......1097
Function ......1098
Specifications-2847......1099
Test procedures......1100
Description-2803......1102
Function-2740......1103
Specifications-2714......1105
Description-2648......1107
Preventive maintenance......1108
Accumulator precharge pressure; checking......1109
Accumulator -Charging......1111
Accumulator precharge adjustment chart......1113
Specifications-2457......1114
Hydraulic Cylinder Overhaul Procedure......1116
Hydraulic cylinder; disassembling......1118
Hydraulic cylinder; assembling......1124
Special tools......1129
Specifications-2252......1130
General-2230......1131
Specifications-2208......1132
Function-2146......1133
Specifications-2124......1134
Description-2102......1135
Function......1136
Auxiliary load sense shuttle valve......1138
Counterbalance valve for attachments-1948......1139
Counterbalance valve for attachments......1140
Single attachment valve with relief (EEC)......1142
General-1842......1143
General......1144
Specifications-1807......1145
Specifications-1745......1147
Specifications-1719......1149
Specifications-1701......1150
Description-1639......1151
Principle of operation; main hydraulic pump......1154
Principle of operation; pressure compensator control......1157
Hydraulic system; bleeding air......1161
Main hydraulic pump troubleshooting guide......1163
LS (load sense) pressure; checking......1165
Compensator Valve Pressure Setting - Checking......1167
LS (load sense) Differential Pressure - Checking......1168
92 - MECHANICAL EQUIPMENT_ATTACHMENT......1171
Specifications - ripper......1172
Description-1246......1173
Specifications - A-frame......1174
Description-1206......1175
Specifications - front mounted scarifier......1176
Specifications - mid mount scarifier......1177
Description-1050......1178
Specifications - windrow eliminator......1179
Specifications - utility dozer blade......1181
Description-0948......1182
Specifications - one way plow......1183
Description-0908......1184
Specifications - V-plow......1185
Description-0828......1186
Specifications - hydraulic snow wing......1187
Description-0739......1189
Specifications - push block......1191
Description-0656......1192
98 - FUNCTION FOR ROAD CONSTRUCTION......1193
Circle adjustment......1194
Pinion wear......1197
Specifications-0546......1198
Description-0524......1199
Circle operation......1202
Troubleshooting guide......1205
G710B to G746B circle and drawbar......1206
Circle and drawbar; removing and disassembling-0403......1207
Circle and drawbar; assembling and installing-0337......1210
Mouldboard; shimming-0309......1216
G780B circle and drawbar......1218
Circle and drawbar; removing and disassembling......1219
Circle and drawbar; assembling and installing......1221
Mouldboard; shimming......1225
Circle turn mechanism; disassembling......1226
Circle turn mechanism; assembling......1228
Drawbar ball stud; disassembling......1231
Drawbar ball stud; assembling......1232
Circle Setup and Timing......1233
Specifications......1235
Description......1236
Blade lift cylinder; removing......1240
Blade lift stirrup; removing......1242
Blade lift arm; removing......1243
Blade lift arm; installing......1245
Blade lift stirrup; installing-5737......1246
Blade lift stirrup; installing......1247
Volvo G780B Motor Graders Service Parts Manual
