Target User:
Farm owners, mechanics, tractor enthusiasts looking to maintain or repair their David Brown 1690
Value Proposition:
Enables self-sufficiency in repairs, saving significant costs compared to professional servicing
Ease Of Use:
Very easy to follow step-by-step instructions
Information Completeness:
Complete with all necessary repair information
Knowledge Enhancement:
Increases user knowledge and reduces reliance on external mechanics
General Coverage:
All areas of repair and routine maintenance
Estimated Page Count:
Comprehensive, likely 500+ pages based on typical WSMs for this era
Manual Type:
Workshop Service Manual (WSM)
Printability:
Full Printable
Delivery Method:
Instant Download
Software Requirement:
Adobe PDF Reader
Operating System Compatibility:
All Versions of Windows & Mac
Engine Service:
Detailed engine overhaul, diagnostics, and component repair
Fuel System:
Fuel injection system, fuel pump, filters, and lines
Cooling System:
Radiator, water pump, thermostat, coolant specifications
Lubrication System:
Oil pump, oil filter, oil cooler, lubrication passages
Exhaust System:
Exhaust manifold, pipes, muffler
Transmission:
Gearbox overhaul, shifting mechanisms, clutch operation
Driveline:
Propeller shafts, differentials, axles, PTO drive
Steering System:
Steering box, linkages, hydraulic assist components
Braking System:
Brake system hydraulics, calipers, discs, parking brake
Hydraulic System:
Hydraulic pump, valves, lift arms, external hydraulics, fluid specifications
Electrical System:
Wiring diagrams, battery, alternator, starter, lighting, instrumentation
Chassis And Frame:
Frame construction, front axle assembly, rear axle assembly
Bodywork And Cab:
Cab structure, doors, fenders, operator controls
Routine Maintenance:
Oil changes, filter replacements, lubrication points, greasing schedule
Troubleshooting:
Diagnostic charts and procedures for common faults
Engine Repair:
Engine disassembly, inspection, repair, and reassembly procedures
Transmission Repair:
Gearbox component replacement and adjustment
Hydraulic Repair:
Hydraulic cylinder seal replacement, pump and valve servicing
Electrical Diagnostics:
Schematic interpretation, fault finding on electrical circuits
Brake System Overhaul:
Hydraulic bleeding, pad/shoe replacement, caliper/cylinder servicing
Depth Of Information:
In-depth, professional quality repair information
Visual Aids:
Includes step-by-step instructions with pictures and wiring diagrams
Engine Manufacturer:
David Brown (likely based on Perkins or own design)
Engine Type:
4-Cylinder Diesel (typical for this model)
Engine Displacement:
Approximately 3.9 Liters (236 cubic inches) for direct injection variants
Estimated Horsepower:
Around 70-80 PTO HP (exact figure varies by specific engine tune and year)
Estimated Torque:
Not specified in product info, but typically strong low-end torque for agricultural use
Injection System:
Likely Bosch or Simms mechanical direct injection
Engine Oil Change:
Typically 250 hours (refer to manual for exact specification and oil type)
Hydraulic Oil Change:
Typically 1000 hours (refer to manual for exact specification and fluid type)
Engine Oil:
API CD or CE rated SAE 15W-40 Diesel Engine Oil (confirm with manual)
Hydraulic Fluid:
Tractor hydraulic fluid (e.g., UTF - Universal Tractor Transmission fluid) meeting specific John Deere J20C or equivalent specs (confirm with manual)
Coolant:
Ethylene Glycol based antifreeze mixture (50/50 with water), typically green color (confirm with manual)
Common Wear Items:
Hydraulic pump seals, clutch wear, starter motor issues, PTO engagement issues.
Electrical Faults:
Wiring harness degradation, starter solenoid problems, alternator output issues are possible with age.
