Volvo G740B Motor Grader Service Repair Manual: Comprehensive Guide for Optimal Performance
Volvo G740 Repair Manual
G740 Volvo Operator Manual – Pdf File
This Volvo G740 Repair Manual covers the following models. Serial number 33000 and up.
The Volvo G740B Motor Grader Service Repair Manual is a detailed reference designed to assist owners, operators, and technicians with the complete maintenance and repair of the Volvo G740B motor grader. This manual provides essential information on various systems, ensuring that all aspects of the machine remain in optimal working condition. Volvo G740 VHP Feller Service Repair Manual
Overview of the Volvo G740 Repair Manual Motor Grader Service
The Volvo G740 Repair Manual covers essential topics such as engine diagnostics, hydraulic system maintenance, electrical troubleshooting, and more, ensuring that users can maximize the lifespan and performance of their grader.
Volvo G740 Repair Manual
Engine Diagnostics and Overhaul
- Engine Components: Detailed diagrams and procedures for inspecting, servicing, and overhauling the motor grader’s engine, including cylinder heads, pistons, and fuel systems.
- Cooling System: Instructions on maintaining the cooling system to prevent overheating and ensure the grader runs efficiently.
Hydraulic Components and Servicing
- Hydraulic System Overview: A breakdown of the hydraulic pumps, valves, and cylinders, with instructions for inspection and repairs to keep the system functioning smoothly.
- Fluid Levels and Replacement: Guidelines on checking and replacing hydraulic fluid to ensure smooth operation and prevent component wear.
Electrical System Troubleshooting Volvo G740 Repair Manual
Wiring and Electrical Components
- Electrical Diagrams: Comprehensive wiring diagrams that assist in troubleshooting electrical issues, from lighting systems to control panels.
- Battery and Alternator Maintenance: Detailed procedures for testing and maintaining the battery and alternator to prevent power failures.
Blade and Frame Adjustments
- Blade Adjustments: Instructions for adjusting and servicing the motor grader’s blade, ensuring optimal grading performance.
- Undercarriage Maintenance: A detailed guide to inspecting and maintaining the grader’s undercarriage components, including tires, axles, and drive systems.
Volvo G740 Service Repair Manual
G710,G710VHP
G716 VHP
G720,G720 VHP
G726 VHP
G730,G730 VHP
G736 VHP
G740,G740 VHP
G780,G780 VHP
MODELS COVERED: Volvo G740 Repair Manual
Total Pages:
File Format: PDF (Windows & Mac & Linux)
Language: English.
TABLE OF CONTENTS
Foreword.
- GENERAL.
Description; complete machine.
Description.
Product identification plates. - SPECIFICATIONS.
Dimensions.
Transport instruction; storage instruction; operating instruction.
Transporting the machine.
Storage.
Grader setup instructions.
STANDARD TIME. - Operation numbers for additional work.
- TOOL.
GB Special tools. - MISCELLANEOUS.
Removing corrosion protective coating.
Standard parts; service.
Lubricant; fuel; other fluid.
Fuel system.
Recommended lubricants.
Grease.
Coolant.
Tandem oil disc brake oils.
Alternative fuels. - SERVICE.
Maintenance of Stored Machines; according to Inspection Program.
Delivery Inspection; according to Inspection Program.
Arrival Inspection; according to Inspection Program.
Hydraulic oil return filter; replacing.
Towing.
Jump-start procedure. - GENERAL.
Safety concerns everybody.
CE marking and declaration of conformity.
Environment. - LUBRICATING SYSTEM.
Specifications; DD.
Lubrication oil circuit; DD engine– Models GB to GB.
Lubrication system DB; description. - FUEL SYSTEM.
Fuel system components; DB.
Fuel flow; DB.
Fuel feed pump DB; description.
Water trap; DB.
Injection pump DB; specifications.
Fuel shut-off valve; DB.
Overflow valve; DB.
Injectors DB; description.
Injectors; replacing.
Injection system DD; E-ECU overview.
INLET & EXHAUST SYSTEM.
Exhaust system DD engine.
Exhaust system DB engine.
General .
Air cleaner.
Preheating coil; DB.
Intercooler DB; specifications.
Intercooler; DB. - COOLING SYSTEM.
Cooling system DB engine; description. - ENGINE CONTROL.
Accelerator decelerator pedal.
Hand Throttle.
VHP (Variable Horsepower).
Electrical; warning; information; instruments.
GENERAL.
Description .
Operation.
General . - BATTERY.
Description .
Specifications .
Non-maintenance batteries; testing.
Explosion hazard.
Battery box.
Alternator; charge regulator.
Voltage regulator.
Specifications .
Alternator; description. - STARTING SYSTEM.
Specifications-.
Starting system; general description.
Neutral start relay.
Electric air preheater. - LIGHTING.
General .
Lighting; front.
Lighting; rear.
Lighting; interior.
Lighting; side.
Other electrical equipment.
Description .
Direction indicator; turn signal.
External warning system.
Ignition switch.
Automatic control_blocking function.
Cable; fuse; relay.
Electrical symbols and designations.
Description .
Cable; Battery isolation switch.
Electrical component list.
Main diagram_Positive feeds_Chassis connections
Main diagram_Positive feeds_Chassis connections
Positive feed_Chassis connection I-ECU_E-ECU
Positive feed_Chassis connection I-ECU_E-ECU
Engine
Engine
D Engine ECU
D Engine ECU
EEC Worklights
Windshield wiper systems
Windshield wiper systems
amp_ amp converter_equalizer
Rotating beacons_ Differential lock_MBCS_Articulation sensor
Transmission ECU
Rotating beacons_differential lock_MBCS - AWD ECU
Transmission ECU
AWD ECU
AWD ECU
AWD ECU
Sensors
Sensors
Brake circuit; lights
Brake circuit; lights
Secondary steering
Climate control unit
Secondary steering
Front and rear defroster fans
Climate control unit
Front defroster fans
Radio_Heated mirrors
Blade float module
Radio_Dome light_Heated mirrors
Front float module
Blade float module
Tire pump
Front float module
Rear float module
Communication; E-ECU_I-ECU
Tire pump_Power outlet
Keyboard
Communication; E-ECU_I-ECU.
Keyboard.
Electrical distribution box fuses; relays.
Data link port.
Ground stud locations. - INSTRUMENT; SENSOR; WARNING & INFORMATION SYSTEM.
Description .
Diagnostic software.
Description of tests. - POWER TRANSMISSION.
Clutch; torque converter.
Specifications; engine clutch.
Description and operation; engine clutch.
Clutch housing; removing.
Clutch assembly; removing.
Clutch assembly; installing.
Clutch housing; installing.
Bearing support housing; installing.
Clutch Slave Cylinder and Pedal Free Play; adjusting .
Clutch Slave Cylinder and Pedal Free Play; adjusting.
Specifications; clutch master cylinder and booster circuit.
Description; clutch master cylinder and booster.
Transmission; hydraulic control.
Specifications .
Description; transmission.
Transmission components.
ECU and shifter assembly.
oil circuit and operation.
Hydraulic circuit and operation.
Transmission troubleshooting.
Error codes.
Hydraulic system troubleshooting.
Transmission; removing.
Transmission; installing. - HYDROSTATIC DRIVE.
Specifications; All Well Drive system.
Description; AWD system.
AWD electrical system.
AWD hydraulic system.
All-Wheel Drive Operational Checks.
AWD test procedure and test port locations.
AWD error codes and troubleshooting.
All-Wheel Drive Pump and Motor Priming Procedure.
Front axle; rear axle.
Specifications; SR final drive.
Description; SR final drives.
Operation; SR final drive.
Lock_unlock function .
Final drive assembly; removing .
Tandem; removing .
Final drive assembly; installing .
Specifications; GB DR final drive.
Description; GB DR final drive.
Operation; GB DR final drive.
Lock_unlock function.
Lubrication circuit.
Final drive assembly; removing.
Final drive assembly; installing.
Specifications; tandems.
Tandem assembly.
Tandem; removing.
Differential Lock; GB GB.
Differential Lock; GB. - BRAKE.
GENERAL.
Overview.
WHEEL BRAKE.
Electrical schematic Image.
Brake circuit hydraulic schematic Image.
General .
Description .
Brake circuit hydraulic schematic.
Electrical schematic .
Electric motor_pump troubleshooting.
Oil disc brake assembly; removing.
Oil disc brakes; disassembling.
Oil Disc Brake Cleaning and Inspection.
Brake housing; pre-assembling.
Tandem axle oil seal installation.
Tandem axle seal; installing.
Oil disc brakes ; assembling.
Oil Disc Brakes Bench Adjustment.
Oil disc brake; installing.
Hydraulic brake system.
Specifications .
Description .
Brake master cylinder and power booster; removing.
Power booster; disassembling.
Power booster; assembling.
Brake master cylinder; disassembling.
Brake master cylinder; assembling.
Brake master cylinder and power booster; installing.
Adjustment checks. - PARKING BRAKE.
Electrical schematic Image.
Hydraulic diagram Image.
Specifications .
Description .
Parking brake; manually releasing.
Hydraulic diagram.
Electrical schematic.
Parking brake troubleshooting.
Parking brake overhaul procedure.
Parking brake assembly; removing.
Parking brake; disassembling.
Parking brake; pre-assembling.
Parking brake; assembling.
Parking brake; installing.
Parking brake; adjusting.
Parking brake intensifier.
Parking brake valve assembly. - STEERING.
GENERAL.
Steering system; description.
Tightening torques .
Front axle toe-in .
Description .
Tightening torque
Front axle toe-in.
Front axle pivot (GB to GB). - STEERING AXLE.
Wheel hub; removing.
Wheel hub; installing.
Steering axle – Disassembly.
Preparation and wheel; removing.
Tie bar; removing.
Tie bar; installing.
Steering cylinder; removing.
Steering cylinder; installing.
Knuckle; removing.
Knuckle; installing.
Drag link; removing.
Drag link; installing.
Pivot block; removing and disassembling.
Pivot block; assembling and installing.
Wheel lean cylinder; removing.
Wheel lean cylinder; installing.
Front axle frame; removing.
Front axle frame; installing.
Wheel; installing.
Axle disassembly and assembly GB.
Front Axle Pivot Pin Bearings; disassembling.
Front Axle Pivot Pin Bearings; assembling.
King Pin Bearings and Spindle Thrust Bearing; disassembling.
King Pin Bearings and Spindle Thrust Bearing; assembling.
Wheel bearings; disassembling.
Wheel bearings; assembling.
Pivot Block Adjustments.
Wheel Bearing; cleaning and inspecting.
Spindle; removing and disassembling.
Spindle; assembling and installing.
Toe in; adjustment
Toe in; adjustment. - STEERING.
Wheel lean hydraulic schematic Image.
Secondary steering hydraulic schematic Image.
Steering hydraulic schematics Image.
Specifications .
Description .
Disassembling.
Assembling.
Cleaning and Inspection.
Removing.
Steering control unit; installing.
Specifications
Description
Schematics.
Ttroubleshooting guide.
Steering control unit troubleshooting.
Specifications-.
Components-.
Steering control unit overhaul procedure.
Steering control unit; disassembling.
Steering control unit; assembling.
Steering Control Unit Bleeding Procedure.
Specifications.
Description.
Function .
Specifications
General description.
Secondary steering; specifications.
Secondary steering; description.
Secondary steering; component location.
Secondary steering hydraulic schematic.
Secondary steering troubleshooting.
Hydraulic cylinder specifications.
Description-. .
Wheel lean hydraulic schematic. - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT.
FRAME. - FRAME LINK.
Articulation Indicator Setup and Adjustment Image.
Articulation Indicator Setup and Adjustment.
Tightening torques.
Articulation hinge.
Articulation hinge – Preparation for disassembly.
Articulation hinge; disassembling.
Cleaning and inspection.
Articulation Hinge; assembling.
Articulation hydraulics. - WHEELS; TRACKS; TYRE; HUB; DRUM.
Wheels; specifications.
General description – Wheels.
Tire troubleshooting guide. - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE.
- AIR CONDITIONING UNIT.
Climate control unit electrical schematic Image.
Specifications .
Description .
Operating principle.
HVAC system components.
Cab air distribution
Cab air distribution
Basic operational checks.
Air conditioning system.
Climate control unit electrical schematic.
Troubleshooting guide Low pressure gauge shown on left; high pressure gauge shown on right
HVAC routine maintenance.
Air conditioner service.
Air Conditioning System Repairs. - INTERIOR EQUIPMENT.
Description .
Control levers; disassembling.
Control Levers Cleaning and Inspection.
Control levers; assembling.
Pedestal Locking Strut Setup.
Locking Strut Troubleshooting. - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPMENT; MISCELLANEOUS.
GENERAL.
Main hydraulic schematic; EEC float valves – Sheet Image.
Main hydraulic schematic; EEC – Sheet Image.
Main hydraulic schematic; float valves – Sheet Image.
Main hydraulic schematic sheet Image.
Main hydraulic schematic sheet .
Main hydraulic schematic; float valves – Sheet .
Main hydraulic schematic; EEC – Sheet .
Main hydraulic schematic; EEC float valves – Sheet .
Specifications .
Description .
Hydraulic components; location.
Hydraulic system troubleshooting guide. - WORKING HYDRAULIC; SERVO HYDRAULICS.
Auxiliary control valves – Sheet Image.
Auxiliary load sense shuttle valve Image.
Counterbalance valve for attachments Image.
Single attachment valve with relief (EEC) Image.
Auxiliary control valves – Sheet .
Hydraulic Oil Filler Cap Prevention of Contaminants.
Hydraulic oil cleanliness.
Specifications .
Description .
Main control valve spool flow rates.
section.
troubleshooting.
overhaul procedure.
removing.
disassembling.
Valve section; disassembling.
assembling.
assembling.
installing.
Main Control Valve Bleeding Procedure.
Specifications .
Description .
Hydraulic swivel joint; removing.
disassembling.
assembling.
installing.
Specifications.
Description.
Components.
Circle Turn Valve Overhaul Procedure.
Circle turn valve; removing.
Circle turn valve; disassembling.
Circle turn valve; assembling.
Circle turn valve; installing.
Circle Timing.
Specifications_.
Description_.
Specifications_ .
Test procedures .
Description_ .
Function .
Specifications .
Test procedures.
Description .
Function-.
Specifications -.
Description.
Preventive maintenance.
Accumulator precharge pressure; checking.
Accumulator -Charging.
Accumulator precharge adjustment chart.
Specifications .
Hydraulic Cylinder Overhaul Procedure.
Hydraulic cylinder; disassembling.
Hydraulic cylinder; assembling.
Special tools.
Specifications .
General .
Specifications.
Function .
Specifications
Description .
Function.
Auxiliary load sense shuttle valve.
Counterbalance valve for attachments.
Single attachment valve with relief (EEC).
General.
Description .
Principle of operation; main hydraulic pump.
Principle of operation; pressure compensator control.
Hydraulic system; bleeding air.
Main hydraulic pump troubleshooting guide.
LS (load sense) pressure; checking.
Compensator Valve Pressure Setting Checking.
LS (load sense) Differential Pressure Checking. - MECHANICAL EQUIPMENT_ATTACHMENT.
Specifications ripper.
Description.
Specifications A-frame.
Description .
Volvo G740 Service Repair Manual
Specifications mid mount scarifier.
Description .
Specifications windrow eliminator.
Specifications utility dozer blade.
Description.
Specifications one way plow.
Description_.
Specifications V-plow.
Description_ .
Specifications hydraulic snow wing.
Description_ .
Specifications push block. - FUNCTION FOR ROAD CONSTRUCTION.
Circle adjustment.
Pinion wear.
Specifications .
Description .
Circle operation.
Troubleshooting guide.
GB to GB circle and drawbar.
Circle and drawbar; removing and disassembling .
Circle and drawbar; assembling and installing .
Mouldboard; shimming .
GB circle and drawbar.
Circle and drawbar; removing and disassembling.
Circle and drawbar; assembling and installing.
Mouldboard; shimming.
Circle turn mechanism; disassembling.
Circle turn mechanism; assembling.
Drawbar ball stud; disassembling.
Drawbar ball stud; assembling.
Circle Setup and Timing.
Specifications.
Description.
Blade lift cylinder; removing.
stirrup; removing.
arm; removing.
Blade lift stirrup; installing.
Blade lift cylinder
Volvo G740 Repair Manual