Target Audience:
Owners, mechanics, technicians requiring in-depth repair and maintenance information
Quality Standard:
Equivalent to factory service manuals used by authorized dealerships
Completeness:
Covers all repair, servicing, and troubleshooting procedures for the specified models
Accessibility:
Instant download for immediate use on multiple devices
Longevity:
Lifetime use with no expiry dates or renewal fees
Engine:
Detailed overhaul, troubleshooting, lubrication, cooling system, fuel system, starting and charging system
Transmission:
Gearbox, clutch, PTO, differential, final drives, hydraulic transmission (if applicable)
Hydraulics:
Hydraulic pump, valves, cylinders, linkage, remote control units, tractor hydraulic system troubleshooting
Electrical:
Wiring diagrams, starter motor, alternator, battery, lighting, instrumentation, troubleshooting
Chassis And Steering:
Front axle, rear axle, braking system, steering system, wheel alignment
Operator Station:
Controls, dashboard, seat, safety features, cab (if equipped)
Maintenance:
Routine service, lubrication schedules, fluid checks and changes, filter replacements
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting for all major systems
Repair:
Step-by-step repair instructions for all components, including detailed disassembly and reassembly procedures
Overhaul:
Complete engine rebuild, transmission overhaul, hydraulic system overhaul
Detail Level:
Comprehensive (factory level)
Illustrations:
Hundreds of detailed photos and exploded diagrams
Specifications:
Torque values, clearances, timing settings, fluid capacities, part numbers
Transmission Type Standard:
Constant mesh gearbox with synchromesh (specific configurations vary by model)
Transmission Type Optional:
Some models may have had optional powershift or synchronized road drive transmissions
Pto Speed:
Standard PTO speeds (e.g., 540/1000 RPM) and related PTO engagement procedures
Differential Lock:
Operation and maintenance of the differential lock
Tractor Layout:
Two-wheel drive (standard), with 4WD options likely available for some models
Operating Weight:
Varies significantly by model and configuration (e.g., 6,000-9,000 lbs or more), specific details in manual
Instrumentation:
Basic analogue gauges for oil pressure, coolant temperature, fuel level, ammeter/voltmeter, tachometer, and hour meter.
Traction Aid:
Differential lock for improved traction in slippery conditions.
Pto Control:
Manual PTO engagement lever and potentially an independent PTO (IPTO) system.
Engine Oil Change:
Typically 250-500 operating hours, refer to manual for exact intervals and oil type.
Transmission Fluid Change:
Refer to manual; often associated with hydraulic fluid service.
Engine Oil:
API CD or CE service category diesel engine oil, SAE 15W-30 or 10W-30 depending on climate. Specific API rating and viscosity grade in manual.
Hydraulic Fluid:
Tractor Hydraulic Fluid (THF) or equivalent. Specific IH or David Brown approved fluids listed in manual.
Transmission Fluid:
Refer to manual for specific transmission fluid type (e.g., GL-4 gear oil for some components).
Common Wear Items:
Clutch wear, hydraulic pump efficiency, front axle kingpins, PTO spline wear, starter motor reliability.
Electrical Issues:
Wiring harness degradation, grounding issues, and starter solenoid failures can occur with age.
Engine Performance:
Potential for injector issues, head gasket leaks, and cooling system component failures (radiator, thermostat, hoses).
Manufacturer:
David Brown was an independent tractor manufacturer acquired by International Harvester in 1971. These tractors represent the merging of their engineering expertise.
Production Era:
Likely produced from the late 1970s through the 1980s, bridging the gap between older David Brown designs and later IH models.
Manufacturing Location:
Typically manufactured at David Brown facilities in the UK or International Harvester plants.
