Volvo G780 Motor Grader Repair Manual

Table of Content G780 Service Information

GENERAL
TABLES, FOR DESIGNING
Conversion Factors
Conversion Factors
Conversion Factors
Standard torque guide
Standard torque guide
Standard torque guide
STANDARD PARTS, SERVICE
General
Recommended lubricants
Recommended lubricants
Recommended lubricants
STANDARD PARTS
Repairing hydraulic system
Repairing hydraulic system
Repairing hydraulic system
Installing final drive assembly onto grader
Installing final drive assembly onto grader
Installing final drive assembly onto grader
Removing final drive assembly from grader
Removing final drive assembly from grader
Removing final drive assembly from grader
ENGINE WITH MOUNTING AND EQUIPMENT
GENERAL
Low power complaint troubleshooting guide
Low power complaint troubleshooting guide
Low power complaint troubleshooting guide
Installing the final drive assembly onto the grader
Installing the final drive assembly onto the grader
Installing the final drive assembly onto the grader
Removing the final drive assembly from the grader
Removing the final drive assembly from the grader
Removing the final drive assembly from the grader
ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
GENERAL
Converter installation – 75 amp
Converter installation – 75 amp
Converter installation – 75 amp
Converter installation 24V to 12V – 10 amp
Converter installation 24V to 12V – 10 amp
Converter installation 24V to 12V – 10 amp
Special instructions for working on the electrical system
Special instructions for working on the electrical system
Special instructions for working on the electrical system
CABLE; FUSE; RELAY
Beacons and heated mirrors
Beacons and heated mirrors
Beacons and heated mirrors
Blade and front float modules
Blade and front float modules
Blade and front float modules
Brakes and supplemental steering
Brakes and supplemental steering
Brakes and supplemental steering
Differential lock, horn, and back-up circuits
Differential lock, horn, and back-up circuits
Differential lock, horn, and back-up circuits
Index and symbology
Index and symbology
Index and symbology
Monitoring module (page 1)
Monitoring module (page 1)
Monitoring module (page 1)
Monitoring module (page 2)
Monitoring module (page 2)
Monitoring module (page 2)
Optional converter systems
Optional converter systems
Optional converter systems
Table 1 – Wire codes
Table 1 – Wire codes
Table 1 – Wire codes
Table 2 – Wire codes (continued)
Table 2 – Wire codes (continued)
Table 2 – Wire codes (continued)
Table 3 – Connectors (numerical)
Table 3 – Connectors (numerical)
Table 3 – Connectors (numerical)
Table 3 – Wire codes (continued)
Table 3 – Wire codes (continued)
Table 3 – Wire codes (continued)
Table 4 – Connectors (alphabetical)
Table 4 – Connectors (alphabetical)
Table 4 – Connectors (alphabetical)
Table 4 – Connectors (alphabetical)
Table 4 – Connectors (alphabetical)
Table 4 – Connectors (alphabetical)
Windshield washers and wipers
Windshield washers and wipers
Windshield washers and wipers
POWER TRANSMISSION
GENERAL
Clutch assembly – Removal and installation
Clutch assembly – Removal and installation
Clutch assembly – Removal and installation
CLUTCH; TORQUE CONVERTER
Clutch slave cylinder and pedal free play
Clutch slave cylinder and pedal free play
Clutch slave cylinder and pedal free play
TRANSMISSION, HYDRAULIC CONTROL
GEARBOX,
HYDROSTATIC DRIVE
PROPELLER SHAFT
BRAKE
GENERAL
Comprehensive info about brakes
WHEEL BRAKE
General, common info about 511 – 519
Rear wheel brake, axle 1, wet brake
Oil disc brake assembly – Removal
Oil disc brake assembly – Removal
Oil disc brake assembly – Removal
Tandem axle oil seal installation
Tandem axle oil seal installation
Tandem axle oil seal installation
HYDRAULIC BRAKE SYSTEM
General, common info about 520 – 522
Master cylinder, brake servo
Brake master cylinder and power booster
removal and installation procedures
Brake master cylinder and power booster
removal and installation procedures
Brake master cylinder and power booster
removal and installation procedures
PARKING BRAKE
General, common info about 551 – 554
Hand brake and caliper
Hand brake and caliper
Hand brake and caliper
Self-adjusting caliper
Self-adjusting caliper
Self-adjusting caliper
STEERING
GENERAL
Comprehensive info, steering
Tightening torques
Tightening torques
Tightening torques
Tightening torques
Tightening torques
Tightening torques
STEERING AXLE
Steering axle; steering spindle, driving
Axle disassembly and assembly
Axle disassembly and assembly
Axle disassembly and assembly
Steering axle – Disassembly
Steering axle – Disassembly
Steering axle – Disassembly
STEERING
Steering wheel; steering column
Steering column disassembly and assembly
Steering column disassembly and assembly
Steering column disassembly and assembly
Hydraulic equipment
Steering control unit overhaul procedure
Steering control unit overhaul procedure
Steering control unit overhaul procedure
Wheel lean system
Hydraulic cylinder specifications
Hydraulic cylinder specifications
Hydraulic cylinder specifications
FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT
FRAME
FRAME LINK
General, frame link complete
Articulation hinge – Preparation for disassembly
Articulation hinge – Preparation for disassembly
Articulation hinge – Preparation for disassembly
Tightening torques
Tightening torques
Tightening torques
Frame link grader
Articulation hinge – Assembly
Articulation hinge – Assembly
Articulation hinge – Assembly
Articulation hinge – Disassembly
Articulation hinge – Disassembly
Articulation hinge – Disassembly
Articulation hydraulics
Articulation hydraulics
Articulation hydraulics
Cleaning and inspection
Cleaning and inspection
Cleaning and inspection
WHEELS; TRACKS; TYRE; HUB; DRUM
General, common info about 771 – 775
Tire troubleshooting guide
Tire troubleshooting guide
Tire troubleshooting guide
MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE
AIR CONDITIONING UNIT
General, common info about 872 – 877
Air conditioning system repairs
Air conditioning system repairs
Air conditioning system repairs
Climate control unit electrical schematic
Climate control unit electrical schematic
Climate control unit electrical schematic
Troubleshooting guideLow pressure gauge shown on left; high pressure gauge shown on right.
Troubleshooting guideLow pressure gauge shown on left; high pressure gauge shown on right.
Troubleshooting guideLow pressure gauge shown on left; high pressure gauge shown on right.
INTERIOR EQUIPMENT
Other interior equipment
Pedestal disassembly and assembly
Pedestal disassembly and assembly
Pedestal disassembly and assembly
Pedestal locking strut
Pedestal locking strut
Pedestal locking strut
HYDRAULIC SYSTEM; DIGGING/ HANDLING/ GRADING EQUIPM.; MISC. EQUIP.
GENERAL
Auxiliary load sense shuttle valve
Auxiliary load sense shuttle valve
Auxiliary load sense shuttle valve
Blade lift options – Sheet 3
Blade lift options – Sheet 3
Blade lift options – Sheet 3
Circle turn valve overhaul procedure
Circle turn valve overhaul procedure
Circle turn valve overhaul procedure
Hydraulic swivel joint overhaul procedure
Hydraulic swivel joint overhaul procedure
Hydraulic swivel joint overhaul procedure
Main hydraulic pump troubleshooting guide
Main hydraulic pump troubleshooting guide
Main hydraulic pump troubleshooting guide
Main hydraulic pump overhaul procedure
Main hydraulic pump overhaul procedure
Main hydraulic pump overhaul procedure
Main hydraulic schematic – ECC – Sheet 2
Main hydraulic schematic – ECC – Sheet 2
Main hydraulic schematic – ECC – Sheet 2
Main hydraulic schematic – Sheet 1
Main hydraulic schematic – Sheet 1
Main hydraulic schematic – Sheet 1
Single attachment valve with relief (EEC)
Single attachment valve with relief (EEC)
Single attachment valve with relief (EEC)
Steering hydraulic circuit components
Steering hydraulic circuit components
Steering hydraulic circuit components
Supplemental steering circuit – Sheet 4
Supplemental steering circuit – Sheet 4
Supplemental steering circuit – Sheet 4
FUNCTION FOR ROAD CONSTRUCTION
Actuation, positioning and set-up (paving operation)
G710 to G740 Circle and drawbar
G710 to G740 Circle and drawbar
G710 to G740 Circle and drawbar
Milling
MBCS disassembly and assembly
MBCS disassembly and assembly
MBCS disassembly and assembly