Target Audience:
Owners, mechanics, technicians seeking in-depth repair and maintenance information
Value Proposition:
Provides professional-level technical data comparable to dealership-issued manuals, with perpetual access
Diagnostic Capability:
Detailed troubleshooting guides and symptom analysis
Visual Aid Quality:
Hundreds of detailed photos and diagrams, including exploded views
Engine Systems:
Engine overhaul, troubleshooting, fuel system, lubrication, cooling system, starting and charging system
Transmission Systems:
Gearbox overhaul, clutch, power take-off (PTO), final drives, differential
Hydraulic Systems:
Hydraulic lift, pump, cylinders, control valves, hydraulic circuits
Electrical Systems:
Wiring diagrams, starter motor, generator/alternator, battery, lighting, instrumentation
Chassis And Steering:
Front axle, steering mechanism, brakes (mechanical and hydraulic if applicable), hitching system
Bodywork And Operator Station:
Fenders, operator controls, seat, dashboard layout
Maintenance:
Routine servicing, lubrication, filter changes, fluid checks
Troubleshooting:
Diagnostic procedures for common and uncommon faults
Repair:
Step-by-step repair instructions for all major components and systems
Overhaul:
Complete disassembly, inspection, and reassembly of engine, transmission, and hydraulic systems
Specifications And Charts:
Torque values, clearances, adjustments, fluid capacities
Depth Of Information:
Professional-grade, covering detailed diagnostics and complete rebuilds
Engine Type:
Direct Injection Diesel Engine (likely a Perkins or similar unit common in David Brown tractors of this era)
Displacement Range:
Estimated 2.5 - 3.5 Liters (typical for tractors of this class)
Horsepower Range:
Typically 40-60 HP (depending on specific variant and tuning)
Injection System:
Direct Injection (as stated)
Cooling Method:
Water-cooled
Oil Type:
Specific diesel engine oil grades (e.g., SAE 30, 15W-40 – detailed in manual)
Transmission Type:
Manual Gearbox (likely with multiple speed options)
Power Take Off Pto:
Standard PTO (likely 540 RPM, possibly 1000 RPM option)
Clutch Type:
Single or Dual Clutch (common for heavy-duty tractors)
Differential Lock:
Likely equipped with a differential lock for improved traction
Gearbox Oil:
Specific tractor hydraulic/transmission fluid (e.g., API GL-4 rated oils – detailed in manual)
Operating Weight Range:
Estimated 4000 - 5500 lbs (typical for this class of tractor)
Wheelbase:
Varies by configuration, but generally around 80-90 inches
Front Tire Size:
Typically 7.50-16 or similar
Rear Tire Size:
Typically 14.9-28 or 16.9-28 or similar
Operator Interface:
Basic mechanical controls, instrumentation includes ammeter, oil pressure gauge, temperature gauge, tachometer
Powertrain Features:
Mechanical governor for engine speed control, live PTO engagement
Engine Oil Change:
Typically every 100-150 operating hours or annually (as specified in manual)
Fuel Filter Change:
As recommended, often with oil changes or based on fuel quality
Air Filter Service:
Regular inspection and cleaning, replacement as needed based on operating conditions
Hydraulic Oil Type:
Universal Tractor Transmission Oil (UTTO) or specific hydraulic oil (as detailed in manual)
Coolant Type:
Ethylene glycol based antifreeze/coolant mixture (specific ratios provided in manual)
Common Wear Points:
Wear in PTO spline, hydraulic pump and valve leaks, clutch wear, front axle kingpin wear
Engine Related Issues:
Potential for injector issues, overheating if cooling system is neglected
