Target Audience:
Tractor owners, independent mechanics, agricultural workshops, and hobbyists seeking to perform repairs and maintenance on their David Brown 1490 Tractor.
Value Proposition:
Provides a cost-effective alternative to professional servicing by empowering users with the knowledge to perform repairs themselves, saving money and ensuring quality.
Convenience:
Instant PDF download allows for immediate access to repair information, anytime and anywhere.
Comprehensive Guidance:
Offers in-depth understanding of the tractor's intricacies, design, and construction for effective problem-solving.
Empowerment:
Enables users to confidently disassemble, reassemble, repair, service, and maintain their vehicle independently.
Major Systems:
General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Engine Control System, Chassis/Body, Restraint System, Axle
Estimated Pages:
Extensive (specific page count not provided, but implied comprehensive coverage)
Type:
Service Repair Manual
Engine:
Detailed service and repair for the engine, including disassembly, assembly, component testing, and specifications.
Transmission:
Comprehensive coverage of the transmission system, including repair procedures, adjustments, and hydraulic systems.
Brakes:
In-depth information on the brake system, including component replacement, hydraulic system service, and troubleshooting.
Electrical:
Includes detailed wiring diagrams and service information for the entire electrical system, including starting, charging, lighting, and accessories.
Fuel System:
Coverage of the fuel injection and fuel system, including pump, injectors, filters, and troubleshooting.
Cooling System:
Information on the cooling system, including radiator, thermostat, water pump, and coolant specifications.
Steering:
Service and repair procedures for the steering system, including components and adjustments.
Suspension:
Details on the tractor's suspension system, including components and service.
Chassis Body:
Information relating to the chassis and body, including structural components and potential repairs.
Axles:
Service information for the front and rear axles.
Maintenance:
Covers routine maintenance tasks, including fluid changes, filter replacements, lubrication, and inspections.
Troubleshooting:
Provides systematic troubleshooting guides for common issues and diagnostic procedures.
Repair:
Detailed step-by-step repair instructions for all major components and systems.
Disassembly Reassembly:
Instructions for the complete disassembly and reassembly of various tractor components.
Rebuilding:
Guidance on rebuilding major assemblies such as the engine and transmission.
Diagnostics:
Advanced diagnostic procedures for identifying and resolving complex mechanical and electrical issues.
Specifications:
Includes essential technical specifications, torque values, clearances, and tolerances for various components.
Rebuild Procedures:
Comprehensive instructions for complete overhauls and rebuilds of major mechanical systems.
Engine Model:
Typically a David Brown 4-cylinder diesel engine (specific designation may vary by sub-model/year, often based on Perkins or own design).
Engine Type:
Naturally Aspirated or Turbocharged Diesel
Horsepower Range:
Approximately 70-90 PTO horsepower (exact figures depend on engine variant and tuning).
Torque Specifications:
Refer to manual for specific torque values for engine components.
Injection System:
Typically Rotary or Inline Injection Pump (e.g., CAV, Lucas)
Cooling Type:
Water-Cooled
Oil Type:
Refer to manual for specific viscosity grade (e.g., API CD or similar for diesel engines of the era).
Oil Capacity:
Refer to manual for specific oil capacity.
Transmission Type:
Manual Gearbox with High/Low Range (e.g., 8-speed, 12-speed, or 16-speed options depending on configuration).
Powershift:
Some models may have featured a powershift option (e.g., certain 'Synchro Shuttle' variants or optional range splitter).
Pto Options:
Standard PTO (e.g., 540 RPM, 1000 RPM) with potential for ground-speed PTO.
Transmission Fluid Type:
Refer to manual for specific UTTO or M2C134-D equivalent hydraulic/transmission fluid.
Transmission Fluid Capacity:
Refer to manual for specific capacity.
Features:
Basic; typically analog gauges for engine temperature, oil pressure, fuel level, and RPM. No modern infotainment systems.
Features:
Minimal; relies on operator's skill. Features like differential lock would be manually engaged.
Features:
None in the modern sense; basic electrical connections for lights and ignition.
Engine Oil Change:
Typically every 250-400 hours, or annually, refer to manual for exact recommendation.
Fuel Filter Replacement:
Regular replacement as per manual recommendations, often tied to hours or fuel quality.
Hydraulic Filter Replacement:
Refer to manual, often at major service intervals.
Engine Oil Specification:
Refer to manual for specific SAE viscosity grade and API classification (e.g., SAE 15W-40 API CD or equivalent).
Coolant Type:
Ethylene glycol-based antifreeze/coolant with appropriate corrosion inhibitors for heavy-duty diesel engines.
Grease Type:
Lithium-based multipurpose grease for lubrication points.
Common Wear Items:
Clutch wear, hydraulic pump issues, seal leaks (engine, transmission, hydraulics), starter motor, and electrical connections.
Engine Performance:
Potential for injector pump calibration issues or engine starting problems in cold weather if glow plugs or battery are weak.
Transmission Operation:
Grinding gears or difficulty shifting may indicate clutch, synchronizer, or linkage issues.
Manufacturer:
David Brown Tractors Ltd., a British agricultural machinery manufacturer.
Series:
Part of the later David Brown 100/110 series tractors, evolving from earlier models.
Production Years:
Approximately 1970s to early 1980s (exact range depends on specific model designations within the 1490 family).
Manufacturing Location:
United Kingdom
