Target Audience:
Professional tractor technicians, farm mechanics, and dedicated DIY owners of the David Brown 1690
Value Proposition:
Comprehensive repair and maintenance guidance, enabling cost savings on labor and ensuring proper vehicle upkeep.
Manual Authenticity:
Original workshop manual content, reflecting manufacturer's specifications and procedures.
Key Benefit 1:
Instant download for immediate access to vital repair information.
Key Benefit 2:
Cost-effective alternative to dealer service for repairs and maintenance.
Key Benefit 3:
Empowers owners to perform their own diagnostics and repairs, fostering self-sufficiency.
Key Benefit 4:
High-quality, detailed information ensures accuracy and effectiveness of repairs.
Engine:
Detailed overhaul, troubleshooting, tuning, specifications
Transmission:
Service, repair, and adjustment procedures for all transmission types
Clutch:
Inspection, replacement, and adjustment
Power Take Off (Pto):
Operation, maintenance, and repair
Hydraulic System:
Components, service, troubleshooting, and fluid specifications
Rear Axle And Differential:
Disassembly, assembly, and adjustment
Front Axle And Steering:
Service and repair of steering components and front axle assembly
Brakes:
Service, adjustment, and repair of braking systems
Electrical System:
Wiring diagrams, component testing, troubleshooting
Cooling System:
Radiator, thermostat, water pump service
Fuel System:
Injection pump, injectors, fuel lines, filters
Lubrication System:
Oil pump, filters, lubrication points
Exhaust System:
Maintenance and inspection
Body And Chassis:
Panel removal, component mounting, structural checks
Periodic Maintenance:
Detailed charts and schedules for routine servicing
Step By Step Repair:
Comprehensive instructions for various repair tasks
Troubleshooting:
Diagnostic procedures and solutions for common problems
Overhaul Procedures:
Complete rebuild instructions for major components (e.g., engine, transmission)
Wiring Diagrams:
Essential for electrical system diagnostics and repair
Adjustment Procedures:
Settings and calibrations for various systems
Disassembly And Assembly:
Detailed instructions for taking apart and reassembling components
Torque Specifications:
Crucial values for tightening fasteners correctly
Depth Level:
Professional Technician Level, suitable for DIY enthusiasts with mechanical aptitude
Detail Level:
Extremely detailed, covering all aspects of repair and maintenance
Engine Manufacturer:
David Brown (likely based on own designs or licensed technology)
Engine Type:
Diesel, Naturally Aspirated or Turbocharged (specific variant dependent)
Cylinders:
Likely 4 or 6 cylinders (common for this class of tractor)
Displacement:
Specific displacement for 1690 is not provided, but typically in the 4.0L - 5.5L range for tractors of this era and size.
Fuel System:
Indirect Injection (IDI) or Direct Injection (DI) diesel system with rotary or inline injection pump.
Horsepower Range:
Typically between 70-90 PTO horsepower, depending on configuration.
Torque:
Specific torque figures not provided, but expected to be robust for agricultural applications.
Transmission Type:
Manual Gearbox with multiple speed options and potentially a synchronized shuttle.
Transmission Options:
Could include powershift or creeper gears depending on the specific model variant and market.
Gear Selection:
Multiple forward and reverse gears for versatile operation.
Power Take Off:
Standard PTO configurations (e.g., 540 RPM, 1000 RPM) and related engagement mechanisms.
Wheelbase:
Specific dimensions not provided in product info. Typical for a tractor of this class.
Length:
Specific dimensions not provided in product info. Typical for a tractor of this class.
Width:
Specific dimensions not provided in product info. Typical for a tractor of this class.
Operating Weight:
Specific weights not provided. Typically in the 7,000 - 9,000 lbs range (unballasted).
Infotainment System:
Basic for its era; likely focused on essential operational functions rather than advanced entertainment.
Driver Assistance Features:
None typically associated with this vintage of tractor, beyond basic functional controls.
Connectivity:
No electronic connectivity features expected.
Engine Oil Change:
Typically 250-500 hours, detailed in the manual.
Air Filter Service:
Variable based on operating conditions, detailed inspection and replacement schedule in the manual.
Fuel Filter Replacement:
Typically at 500-1000 hours or as needed, with bleeding procedures in the manual.
Engine Oil:
CD/CE/CF or higher rated diesel engine oil, viscosity grade typically 15W-40 or 20W-50, as specified in the manual.
Hydraulic Fluid:
Tractor Hydraulic Fluid (THF) or specified universal tractor transmission oil (UTTO), with correct viscosity and API classification as per the manual.
Transmission Fluid:
Likely the same THF/UTTO as the hydraulic system, check manual for exact specifications.
Coolant:
Ethylene glycol-based antifreeze mixed with distilled water, typically 50/50 ratio, for freeze and corrosion protection. Specific type detailed in the manual.
Common Wear Points:
Transmission synchronizers, clutch wear, hydraulic pump efficiency, front axle kingpins, and electrical connections are common areas for wear in tractors of this age. The manual addresses inspection and repair.
Diesel Injection System:
Potential issues with injection pump timing, injector seals, and fuel system cleanliness. The manual provides detailed diagnostic and service procedures.
Manufacturer Origin:
David Brown Tractors was a British manufacturer with a long history in agricultural machinery.
Brand Reputation:
Known for robust and reliable tractors, often favoured for their engineering quality.
Model Placement:
The 1690 likely represented a mid-to-high horsepower model in the David Brown lineup during its production era.
Production Period:
Specific production years for the 1690 are not provided, but likely from the late 1970s to mid-1980s, a period of significant development in tractor technology.
Manufacturing Location:
Likely manufactured in the UK at David Brown's facilities.
