Target Audience:
Professional agricultural technicians, farm mechanics, and dedicated DIY tractor owners with a foundational understanding of mechanical and electrical systems.
Editorial Stance:
Emphasizes factory-level procedures and knowledge, empowering owners to make informed maintenance and repair decisions.
Instructional Methodology:
Step-by-step guidance, aiming to teach proprietary repair and maintenance techniques.
Utility:
Essential resource for maintaining operational efficiency, longevity, and safety of the David Brown 1690 Tractor.
Engine Systems:
Engine overhaul, cooling system, lubrication system, fuel system (injection pump, injectors), air intake system, exhaust system.
Drivetrain Systems:
Transmission (gearbox, power take-off), differential, final drives, drive axles, clutch.
Hydraulic Systems:
Hydraulic pump, control valve, lift arms, external hydraulic services, power steering.
Electrical Systems:
Starting system, charging system (alternator), battery, lighting, wiring diagrams, instrument panel.
Braking Systems:
Brake system overhaul, adjustments, hydraulic components.
Chassis And Body:
Front axle, steering linkage, wheels and tires, fenders, drawbar, ballast weights.
Maintenance:
Routine servicing, lubrication points, fluid checks and changes, filter replacements.
Troubleshooting:
Diagnostic procedures for common faults and symptoms across all systems.
Repair And Rebuild:
Step-by-step instructions for disassembly, cleaning, inspection, repair, and reassembly of all major components.
Technical Specifications:
Torque values, clearances, tolerances, fluid capacities, electrical specifications, pressure settings.
Illustrations:
Detailed diagrams, exploded views, and photographs to aid in identification and assembly.
Wiring Diagrams:
Comprehensive electrical schematics for troubleshooting and repair.
Depth Of Information:
Covers from fundamental maintenance and basic repairs to in-depth component overhauls and diagnostics, suitable for professional technicians and experienced DIY mechanics.
Engine Manufacturer:
David Brown (engine variant may be Perkins or similar, specific details in manual)
Displacement:
Likely in the range of 5.5L to 6.5L (specifics to be confirmed in manual)
Horsepower:
Approximately 90-100 PTO horsepower (exact figures in manual)
Torque:
Details to be found within manual specifications.
Fuel Injection:
Likely a rotary or inline injection pump system (e.g., Simms, Lucas CAV, or Bosch - specific model in manual).
Transmission Type:
Manual Synchromesh gearbox with multiple speed ranges (e.g., 12-speed forward, 4-speed reverse, or similar configurations).
Powershift Options:
May include a powershift or torque amplifier option (specific availability in manual).
Pto Options:
Standard Power Take-Off (PTO) with multiple speeds (e.g., 540/1000 RPM) and potentially ground-speed PTO.
Overall Length:
Approx. 3.7 - 4.0 meters (specifics in manual)
Overall Width:
Approx. 1.8 - 2.0 meters (track width adjustable, specifics in manual)
Wheelbase:
Approx. 2.3 - 2.5 meters (specifics in manual)
Operating Weight:
Approx. 4,000 - 4,500 kg (tare weight, may vary with configuration)
Rollover Protection:
ROPS (Roll-Over Protective Structure) as standard or optional, depending on configuration and region. Manual will detail installation and maintenance.
Braking System Safety:
Independent hydraulic brakes, park brake. Manual covers proper function and maintenance.
Seatbelt:
Seatbelt availability as per ROPS installation or operator comfort features. Manual will advise on usage.
Instrument Panel:
Basic analog gauges for engine temperature, oil pressure, fuel level, tachometer, and warning lights. Detailed function explained in manual.
Traction Control:
N/A (Tractor of this era did not typically feature electronic driver assistance systems).
External Ports:
N/A (No electronic connectivity features typical of modern vehicles).
Engine Oil Change:
Typically every 250-500 operating hours (specific interval to be confirmed in manual).
Air Filter Service:
Inspection and cleaning based on operating conditions, replacement at specified intervals or when damaged. Manual provides detailed guidance.
Hydraulic Fluid Change:
Recommended at regular intervals, typically annually or every 500-1000 hours. Manual will specify exact intervals and filter change procedures.
Engine Oil Type:
API CD or equivalent, SAE 15W-30 or 10W-30 (seasonal variation), or specific David Brown recommendation. Manual to list exact specifications and API service classifications.
Hydraulic Transmission Fluid:
Typically a universal tractor transmission oil (UTTO) or a specified multi-purpose fluid. Manual will provide exact specification and viscosity grade.
Coolant Type:
Ethylene glycol based antifreeze/coolant with corrosion inhibitors. Manual will detail mixture ratio and type.
Common Wear Points:
Wear in clutch assembly, PTO engagement, hydraulic pump efficiency, and potential seal leaks over time. Manual will guide on inspection and replacement.
Electrical Common Faults:
Corroded electrical connections, faulty starter solenoids, and alternator issues are common on older machinery. Manual provides detailed wiring diagrams.
Manufacturer History:
David Brown Tractors was a British manufacturer known for robust and reliable agricultural machinery. The brand has a rich history dating back to the early 20th century.
1690 Context:
The 1690 was part of David Brown's later tractor lines, designed to offer increased power and comfort for larger farming operations, often featuring more advanced hydraulic systems.
Manufacturing Location:
Primarily manufactured in the United Kingdom.
