Purpose:
To provide owners and technicians with the necessary information to maintain and repair David Brown 885, 995, 1210, 1212, 1410, and 1412 tractors.
Benefit:
Enables users to save on repair costs and maintain vehicle condition.
Detail Level:
Features step-by-step instructions and detailed exploded diagrams.
User Friendliness:
Designed for ease of use with clear headings and intuitive layout.
Competitors:
Competed with models from Massey Ferguson, Ford, John Deere, and International Harvester of the same era.
Engine:
Comprehensive engine service, overhaul, and component diagnostics
Transmission:
Detailed repair and maintenance of the transmission system
Hydraulic System:
In-depth coverage of the hydraulic lift system, pumps, valves, and cylinders
Electrical System:
Wiring diagrams, troubleshooting, and component testing for the electrical system
Fuel System:
Service and repair of the diesel fuel system, including injection pumps and injectors
Cooling System:
Maintenance and repair of the radiator, thermostat, and cooling passages
Brakes:
Detailed instructions for brake system service and repair
Steering:
Service and repair of the steering gear and power steering systems
Front Axle:
Includes kingpin replacements, steering linkage adjustments, and wheel bearing service for 2WD and 4WD variants.
Rear Axle:
Service of axle shafts, bearings, and final drive reduction gears.
Final Drive:
Detailed information on the final drive mechanisms
Power Take Off:
Service and maintenance of the Power Take-Off (PTO) system
Belt Pulley:
Service and installation of belt pulley attachments.
Wheel Brakes:
Specific details on brake shoe adjustment, lining replacement, and hydraulic brake systems.
Ignition System:
Focuses on glow plug operation and troubleshooting for diesel engine cold starting.
Power Steering:
Diagnosis, repair, and fluid maintenance for power steering units.
Clutch:
Detailed clutch adjustment, replacement of friction plates, and release bearing service.
Differential:
Service and repair of the differential assembly, including backlash adjustment.
Maintenance:
Routine maintenance tasks, lubrication, and inspections
Troubleshooting:
Diagnostic procedures for identifying and resolving common issues
Repair:
Step-by-step repair instructions for all major vehicle systems
Overhaul:
Complete overhaul procedures for engines, transmissions, and other major components
Disassembly Assembly:
Detailed instructions for component disassembly and reassembly
Troubleshooting Charts:
Included for diagnosing common operational faults across all systems.
Depth:
Comprehensive from basic maintenance to advanced engine and transmission overhauls
Detail Level:
Includes exploded views, torque specifications, timing procedures, and electrical schematics.
Diagnostics:
Includes troubleshooting charts and diagnostic procedures for identifying component failures.
Specifications:
Provides critical torque values for bolt tightening, bearing preloads, and critical component clearances.
Wiring Diagrams:
Comprehensive electrical schematics for all circuits.
Horsepower Range:
Variable by model (e.g., 885 approx. 70-75 HP, 1412 approx. 100-110 HP)
Injection System:
Typically CAV rotary or inline injection pumps
Engine Block:
Commonly 3 and 4-cylinder diesel engines based on the AD4/360 and AD4/410 engine families.
Engine Displacement:
Ranges from approx. 3.6L (AD4/360) to 4.1L (AD4/410) depending on the tractor model.
Engine Family:
Primarily based on the Perkins AD4.236 (4-cylinder) and AD3.152 (3-cylinder) engines, or David Brown's in-house designs derived from these.
Cooling Type:
Water-cooled
Gearbox Type:
Manual transmission with multiple forward and reverse gears
Transmission Options:
Possible options may include different gear ratios or synchronized engagement depending on the model and year.
Clutch Type:
Typically a dry single or dual-stage clutch
Gear Options:
Commonly featured 8-speed (4 forward, 4 reverse) or 10-speed (e.g., with creeper gears) transmissions.
Differential Lock:
Many models feature a differential lock for improved traction, with service procedures covered.
Engine Oil Change:
Typically every 100-250 operating hours, or annually, depending on duty cycle. Specific oil grades are detailed in the manual.
Hydraulic Fluid Change:
Recommended every 500-1000 operating hours or as per manual's specific guidelines for fluid condition.
Engine Oil:
SAE 30 or 15W-40 diesel engine oil (API CD or higher) is commonly specified. Refer to manual for exact specifications.
Transmission Hydraulic Fluid:
Typically a universal tractor transmission oil (UTTO) or specific hydraulic oil grade. Manual will specify.
Coolant:
Ethylene glycol-based antifreeze mixture with distilled water (typically 50/50 ratio).
Common Wear Points:
Clutch wear, hydraulic pump performance degradation, front axle kingpin wear, and potential diesel injection system issues over time.
Electrical Problems:
Wiring harness degradation, starter motor issues, and alternator/generator output can be common with age.
Hydraulic Issues:
Slow or jerky lift operation, leaks from cylinders or hoses, and pump cavitation.
Grease Points:
Extensive lubrication points on steering, axles, PTO, and linkage systems require regular greasing.
Manufacturer:
David Brown Tractors Ltd., a British manufacturer known for robust agricultural machinery.
Series:
These models represent a significant part of David Brown's post-war tractor development, evolving from earlier designs to meet farmer's needs for power and versatility.
Design Philosophy:
Designed for reliability, durability, and ease of maintenance in agricultural environments.
Production Period:
Models like the 885, 995, and 1210/1212 were produced from the mid-1960s through the 1970s.
