Positioning:
A robust and versatile tractor designed for mid-range agricultural and heavy-duty tasks.
Competitors:
Competed with models from John Deere, Ford, Massey Ferguson, and other established tractor manufacturers of its era.
Operator Comfort:
Enclosed cab (often optional or with features like heating/ventilation), ergonomic controls.
Performance:
Powerful engine, strong hydraulics, and robust drivetrain for demanding work.
Durability:
Built with heavy-duty components for longevity in agricultural environments.
Audience:
Farm owners, agricultural contractors, mechanics, and tractor enthusiasts seeking to maintain, repair, or understand the David Brown 1690.
Primary Coverage:
Service, Repair, Operation, Parts
Service Manual Approximate:
400-500 pages (estimated)
Operators Manual Approximate:
150-200 pages (estimated)
Parts Manual Approximate:
300-400 pages (estimated)
Primary Type:
Factory Service Manual
Secondary Type:
Factory Operators Manual
Tertiary Type:
Factory Parts Manual
Primary Language:
English
Digital Format:
PDF Download
Engine:
Overhaul, diagnostics, fuel system, cooling system, lubrication, ignition/starting (where applicable), exhaust
Transmission:
Gearbox, clutch, power take-off (PTO), differential, final drives, hydraulic/mechanical shifting mechanisms
Hydraulics:
Hydraulic pump, control valves, cylinders, lift arms, external hydraulic circuits, troubleshooting
Electrical:
Wiring diagrams, starter system, charging system, lighting, instrumentation, safety switches, troubleshooting
Chassis And Frame:
Frame construction, front axle, steering system, rear axle, braking system, hitching mechanisms
Bodywork And Controls:
Operator's station, controls, dashboard layout, fenders, guards
Maintenance:
Regular servicing, lubrication points, filter changes, fluid checks, adjustments
Repair:
Component removal and installation, rebuilding procedures for engine, transmission, hydraulics, and other major systems
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting, common fault diagnosis
Technical Specifications:
Torque values, clearances, tolerances, fluid capacities, pressure settings
Parts Identification:
Detailed exploded views, part numbers, and descriptions for all components, essential for ordering replacements.
Depth:
Comprehensive, from basic operation and maintenance to advanced component overhaul and diagnostics
Quality:
High-resolution scans of original factory documents
Binding:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Text Search:
Likely searchable if OCR processed, though original scan quality may vary
Completeness:
Collection of three distinct factory manuals (Service, Operator, Parts) providing comprehensive coverage.
Authenticity:
Stated as authentic factory manuals, not aftermarket reproductions.
Engine Manufacturer:
David Brown (or Perkins, depending on specific build/market)
Engine Model:
Typically a 6-cylinder diesel engine (e.g., David Brown 6-236 or similar Perkins variant)
Engine Type:
Turbocharged, Direct Injection, Diesel
Horsepower Rated:
Approx. 90-100 PTO HP (varies by specific engine tune and rating method)
Torque Peak:
Significant torque output for heavy draft work (specific values not provided in product info but expected to be high for its class)
Injection System:
Inline Injection Pump (e.g., Simms or Lucas CAV)
Type:
Pressurized, wet sump
Type:
Constant Mesh Gearbox with Synchromesh (often a 12-speed forward, 4-speed reverse or similar)
Powershift:
Optional powershift unit or range splitter may have been available for certain configurations.
Power Take Off Pto:
Dual PTO speeds (e.g., 540/1000 RPM) selectable, potentially ground-speed PTO.
Differential Lock:
Engageable rear differential lock for improved traction.
Clutch:
Dual-stage clutch for independent PTO operation and transmission engagement.
Wheelbase:
Approx. 92-96 inches (2337-2438 mm) (estimated, as specific dimensions not in product info)
Length:
Approx. 140-150 inches (3556-3810 mm) (estimated, excluding implement)
Width:
Approx. 70-80 inches (1778-2032 mm) (estimated, at rear wheels)
Operating Weight:
Approx. 8,000 - 9,500 lbs (3629 - 4309 kg) (estimated, without ballast or front loader)
Drawbar Pull Capacity:
High, suitable for heavy draft implements (specific rating not in product info)
Rollover Protection Structure Rops:
ROPS (Roll-Over Protective Structure) typically fitted or available as an option; essential for safe operation.
Brakes:
Hydraulically operated, disc brakes (internal expanding or external contracting depending on axle design); independent parking brake.
Seatbelt:
Seatbelt often included with ROPS-equipped cabs.
Guards And Shields:
Extensive guards for PTO, drivelines, and moving parts.
Engine Oil Change:
Typically every 250-500 operating hours or annually, whichever comes first (check specific manual for exact intervals).
Air Filter Service:
Check and clean every 100 hours, replace as needed.
Fuel Filter Replacement:
Replace annually or every 500 hours.
Engine Oil:
API CD or CE rated Diesel Engine Oil, SAE 15W-40 recommended for most operating temperatures. (Consult manual for precise viscosity and API rating).
Transmission Hydraulic Fluid:
Tractor Transmission Hydraulic Fluid (UTTO) or equivalent, e.g., Case IH Hy-Tran fluid. (Capacity approximately 18-20 gallons / 70-75 liters for powershift models, less for standard). Check manual for precise type and capacity.
Coolant:
Ethylene Glycol based antifreeze with corrosion inhibitors, typically 50/50 mix with distilled water. (Capacity approx. 15-18 liters).
Brake Fluid:
Typically SAE J1703 or DOT 3 for any separate brake fluid systems, but main brakes are usually oil immersed. (Consult manual for specific brake system fluid if applicable).
Common Wear Points:
Hydraulic pump and valve wear, clutch wear, PTO engagement issues, potential for starter/alternator problems as with any older vehicle.
Electrical Gremlins:
Older wiring harnesses can degrade, leading to intermittent electrical faults.
Cooling System:
Radiator leaks, thermostat issues, and water pump failures can occur with age.
Heritage:
David Brown Tractors was a British agricultural machinery manufacturer with a long history of producing robust tractors.
Evolution:
The 1690 was part of the later generation of David Brown tractors, known for increased power and comfort over earlier models. It was developed under the ownership of Tenneco (Case IH) after the acquisition of David Brown.
Production Period:
Mid-to-late 1980s and early 1990s.
Manufacturing Location:
Typically UK (Meltham, Yorkshire)
