Overview
The Volvo G720B Motor Grader Service Repair Manual provides a workshop reference for maintaining, diagnosing and repairing the documented machine systems. Its service groups address power transmission, braking equipment, steering components, and working and servo hydraulics.
The service topics include hydraulic transmission controls, differential-lock controls, hydraulic tanks, filters and oil-cooling equipment, working-hydraulics pumps, and fuel injection timing references.
Table of Contents
Volvo G720B Manual
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01. General
- Miscellaneous — Service instruction; safety instruction
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02. Standard Parts, Service
- Lubricant; Fuel; Other Fluid
- Service — Arrival inspections; delivery service
- Service — Maintenance
- Service — Emergency measures
- Safety equipment, without own function group
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03. Engine with Mounting and Equipment
- General, engine installation and its function
- Engine — General, common info about 211 – 218
- Engine — Cylinder head
- Engine — Cylinder block with crankcase ventilation
- Engine — Cylinder liner; piston
- Engine — Valve mechanism
- Engine transmission; camshaft
- Engine — Crank shaft; connecting rod; vibration damper; fly wheel
- Lubricating System — General, common info about 221 – 224
- Lubricating System — Oil pump; line
- Fuel System — General (common info about 233 – 238)
- Fuel System — Fuel pump; filter; strainer
- Fuel System — Injection pump; regulator; pump companion
- Fuel System — Injector; delivery pipe
- Fuel System — Control system; control unit (for ex. injection timing adjuster)
- Inlet System; Exhaust System — Silencer; exhaust pipe
- Inlet System; Exhaust System — Turbo charger
- Inlet System; Exhaust System — Air cleaner with connections; air pre-heater
- Inlet System; Exhaust System — Charge air cooler with connections
- Cooling System — General, common info about 261 – 269
- Engine Control — Revs control, foot operated
- Engine Control — Revs control, hand operated
- Engine Control — Variable Horse Power system, (VHP)
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04. Elec. System; Warning System; Information System; Instruments
- Comprehensive info, electrical system
- Battery; Energy Storage System; Mounting Parts — General, common info about 311 – 313
- Battery; Energy Storage System; Mounting Parts — Battery
- Battery; Energy Storage System; Mounting Parts — Battery box; mounting parts
- Alternator; Charging; Electric Motor; Electric Drives — General, common info about 321 – 322
- Alternator; Charging; Electric Motor; Electric Drives — Alternator inclusive drive
- Starting System — General, common info about 331 – 334
- Lighting — General, common info about 351 – 356
- Other Electrical Equipment — General, common info about 361 – 367
- Cable; Fuse; Relay — General, common info about 371 – 379
- Cable; Fuse; Relay — Miscellaneous
- Instrument; Sensor; Warning and Information System — General, common info about 383 – 387
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05. Power Transmission
- Clutch; Torque Converter — Clutch control, manual or fixed
- Transmission, Hydraulic Control
- Hydrostatic Drive — General, common info about 441 – 443
- Front Axle; Rear Axle — Rear axle 1 — Tandem drive
- Front Axle; Rear Axle — Differential lock, with control
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06. Brake
- Comprehensive info about brakes
- Wheel Brake — General, common info about 511 – 519
- Wheel Brake — Rear wheel brake, axle 1, wet brake
- Hydraulic Brake System — General, common info about 520 – 522
- Hydraulic Brake System — Master cylinder, brake servo
- Parking Brake — General, common info about 551 – 554
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07. Steering
- Comprehensive info, steering
- Steering axle; steering spindle, driving
- Steering wheel; steering column
- Steering — Hydraulic equipment
- Steering — Supplementary steering
- Steering — Wheel lean system
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08. Frame; Springs; Damping; Axle Suspension; Wheel/track Unit
- Frame — General, common info about 711 – 718
- Frame Link — General, frame link complete
- Frame link grader
- Wheels; Tracks; Tyre; Hub; Drum — General, common info about 771 – 775
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09. Machinery House; Cab; Exterior Trim Parts Anywhere
- Air Conditioning Unit — General, common info about 872 – 877
- Interior Equipment — Instrument panel/console; control panel/console/-pedestal
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10. Hydraulic System; Digging/ Handling/ Grading Equipm.; Misc. Equip.
- General
- Working Hydraulics; Servo Hydraulics — General, common info about 911 – 917
- Working Hydraulics; Servo Hydraulics — Tank; line; oil cooling; filter; breather; filling pump
- Working Hydraulics; Servo Hydraulics — Working hydraulics — Directional valve; control valve
- Working Hydraulics; Servo Hydraulics — Pump, working hydraulics
- Mechanical Equipment/attachment — Attachments, others
- Mechanical Equipment/attachment — Dozer equipment, snow equipment
- Mechanical Equipment/attachment — Miscellaneous equipment
- Function for Road Construction — Grading — Drawbar
- Function for Road Construction — Grading — MBCS (Moveable Blade Control System)
Service-Brake and Parking-Brake References
This coverage includes the entries “Master cylinder, brake servo” and “Rear wheel brake, axle 1, wet brake”.
Use the wheel-brake or parking-brake branch appropriate to the task rather than treating all brake entries as one assembly.
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