David Brown Tractor
Series 770, 870, 970, 1070,
1090, 1170 & 1175
Workshop Repair Manual

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This comprehensive workshop manual is the exact same manual issued by David Brown/Case to their dealers and technicians.

Suitable for the home workshop mechanic or professional technician this manual will help you restore and maintain your David Brown/Case Tractor. Very easy step by step instructions with lots of diagrams and photos.

Suitable for the following David Brown/Case Models:

• David Brown 770
• David Brown 870
• David Brown 970
• David Brown 1070
• David Brown 1090
• David Brown 1170
• David Brown 1175

The following Engines are covered in this manual:

• 251 BG 4 cylinder Petrol
• 267 BD 4 cylinder Diesel
• 301 BG 4 cylinder Petrol
• 336 BD 4 cylinder Diesel
• 377 BG 6 cylinder Petrol
• 401 BD 6 cylinder Diesel
• 451 BD 6 cylinder Diesel
• 451 BDT 6 cylinder Diesel Turbo
  

Below is a comprehensive list of contents in this manual:

Front Systems

Adjustable Axle and Support

Power Steering System

Lubrication
Trouble Shooting
System Operating Pressure
Hydraulic Pump
Manual Pump
Steering Control Valve
Relief Valve
Steering Actuator (Motor)
Steering Cylinders

Engine

Remove and Refit with Clutch
Cylinder Heads
Valves and Seats
Valve Guides and Springs
Cam Followers
Timing Gear Cover
Timing Gears
Camshaft and Bearings
Rod and Piston Units
Pistons, Rings and Sleeves
Cylinder Sleeves
Connecting Rods and Bearings
Crankshaft and Main Nearings
Engine Counter Balancer
Crankshaft Rear Oil Seal
Flywheel
Oil Pan
Oil Pump Relief Valve
Air Intake System

Diesel Turbocharger

Operation
Testing
Removal and Refit

Gasoline Fuel System

Carburettor

Diesel Fuel System

Fuel, Filters and Lines
Bleeding
Fuel Injection Pump
Injector Nozzles

Gasoline Engine Governor

Overhaul

Cooling System

Radiator
Thermostat
Water Pump

Electrical System

Circuit Description
Distributor
Prestolite Alternator and Regulator
Delco Remy Delcotron Alternator
Starter Motor

Engine Clutch

Adjustment
Tractor Split
Overhaul
Clutch Housing
Clutch Shaft
Release Linkage

Power Shift Clutch

Operation
Adjustment
Remove and Refit
Overhaul

Gear Transmission

Platforms and Fenders
Top Cover Unit
Shift Rails and Forks
Range Drive Shaft
Sliding Gear Shift
Reverse Idler Shaft
Counter Shaft (Bevel Pinion Shaft)

Differential and Final Drive

Differential and Main Drive Bevel Ring Gear
Bull Gears and Pinions
Final Drive Units

Brakes

Manual Brake Master Cylinder
Power Brake Valve
Double Disc Brakes
Caliper Type Disc Brakes
Parking Brakes

Independent Power Take off

Operation
Testing and Adjustment
Flow Divider - IPTO Control Valve

Hydraulic System

Operation
testing
Hydraulic Pump
Duel Remote Valve
Draft-O-Matic Valve
Rockshaft and Linkage
Work Cylinders and Couplings

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