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David Brown 780 - User Manual

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Summary

STEERING GEAR

OVERHAUL STEERING GEAR

Details the step-by-step process of overhauling the steering gear.

POWER STEERING

R&R PUMP

Procedures for removing and installing the power steering pump.

R&R STEERING CYLINDER

Steps to remove and install the steering cylinder assembly.

ENGINE

R&R ENGINE ASSEMBLY

Procedures for removing and installing the engine assembly.

R&R CYLINDER HEAD

Steps to remove and install the cylinder head.

CONNECTING ROD AND PISTON ASSEMBLIES

Removal and installation of connecting rods and pistons.

CRANKSHAFT AND MAIN BEARINGS

Procedures for crankshaft and main bearing service.

OIL PUMP AND RELIEF VALVE

Procedures for oil pump and relief valve service.

DIESEL FUEL SYSTEM

TROUBLESHOOTING

Troubleshooting common diesel fuel system issues.

BLEEDING FUEL SYSTEM

Procedure for bleeding the diesel fuel system.

COLD WEATHER STARTING AIDS

Methods for starting in cold weather.

FUEL INJECTION PUMP

General information on fuel injection pumps.

R&R FUEL INJECTION PUMP

Procedures for removing and installing the fuel injection pump.

DIESEL GOVERNOR ADJUSTMENTS

Adjusting the diesel governor.

FUEL INJECTORS

LOCATING A FAULTY NOZZLE

How to identify a faulty injector.

REMOVE AND INSTALL INJECTORS

Procedures for injector removal and installation.

NOZZLE TESTING

Methods for testing fuel injector performance.

SINGLE DISC CLUTCH

DUAL LIVEDRIVE CLUTCH

R&R CLUTCH

Procedures for removing and installing the dual clutch.

CLUTCH OVERHAUL

Procedures for overhauling the clutch assembly.

TRANSMISSION

LUBRICATION

Information on transmission lubrication.

SHIFT LEVERS, RAILS & FORKS

Details on shift levers, rails, and forks.

R&R TRANSMISSION COVER

Procedures for removing and installing the transmission cover.

R&R TRANSMISSION ASSEMBLY

Procedures for removing the transmission assembly.

R&R Transmission From Rear

Procedure for removing transmission by splitting tractor.

OVERHAUL TRANSMISSION

Procedures for overhauling the transmission.

MAIN DRIVE BEVEL GEARS AND DIFFERENTIAL

R&R DIFFERENTIAL ASSEMBLY

Procedures for removing and installing the differential.

ADJUST PINION MESH POSITION

How to adjust pinion mesh position.

ADJUST DIFFERENTIAL CARRIER BEARINGS AND BEVEL GEAR BACKLASH

Procedures for adjusting differential bearings and backlash.

OVERHAUL DIFFERENTIAL ASSEMBLY

Procedures for overhauling the differential assembly.

DIFFERENTIAL LOCK

Information on the differential lock system.

FINAL DRIVE

LUBRICATION AND BREATHER

Details on lubricating and breathing final drive units.

R&R FINAL DRIVE ASSEMBLIES

Procedures for removing and installing final drive assemblies.

WHEEL AXLE SHAFT, AXLE GEAR, BEARINGS & SEALS

Service for axle shaft, gear, bearings, and seals.

SPUR PINION SHAFT, BEARINGS AND SEAL

Service for spur pinion shaft, bearings, and seals.

BRAKES

ADJUSTMENT

Procedures for adjusting the brakes.

R&R BRAKE SHOES

Procedures for removing and installing brake shoes.

BELT PULLEY

OVERHAUL

Procedures for overhauling the belt pulley.

PTO

R&R POWER TAKE-OFF ASSEMBLY

Procedures for removing and installing the PTO assembly.

CONTROL MECHANISM

R&R AND OVERHAUL CONTROL MECHANISM

Procedures for removing and overhauling the control mechanism.

SYSTEM CHECKS AND ADJUSTMENTS

PUMP VALVE LINKAGE

Procedures for adjusting the pump valve linkage.

TROUBLE SHOOTING

HYDRAULIC SYSTEM OPERATING PRINCIPLES

DEPTH (DRAFT) CONTROL

Details on depth control operation.

HEIGHT (POSITION) CONTROL

Details on height control operation.

David Brown 780 Specifications

General IconGeneral
ManufacturerDavid Brown
Model780
Engine TypeDiesel
Production Years1965-1971
Transmission8-speed
Transmission Details8 forward and 2 reverse gears
Fuel CapacityApprox 60 liters

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