🏷️ Basic Information Identification Make: David Brown Model: 1490 Tractor 👋 Introduction Market Position Positioning: A robust and versatile utility tractor, the David Brown 1490 was designed for agricultural and industrial applications. Key Features Engine Power: Known for its reliable engine performance and substantial power output for its class. Hydraulic Capacity: Equipped with a capable hydraulic system for operating implements. Operator Comfort: Designed with operator comfort and ease of use in mind for extended working periods. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair for David Brown 1490 Tractor Page Count Estimated Page Count: N/A (Digital PDF) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine System: Detailed diagnostics, repair, and overhaul of the engine Fuel System: Fuel injection system, pumps, filters, and carburetor (if applicable) Cooling System: Radiator, thermostat, water pump, hoses, and coolant specifications Lubrication System: Oil pump, oil filter, lubrication passages, and oil specifications Transmission System: Gearbox, clutch, PTO (Power Take-Off) system, and hydraulic transmission components Hydraulic System: Hydraulic pump, control valves, cylinders, hoses, and hydraulic fluid specifications Electrical System: Wiring diagrams, starter, alternator, battery, lighting, and instrumentation Steering System: Power steering pump, linkages, and steering column Braking System: Brake master cylinder, calipers, discs/drums, and brake fluid specifications Front Axle And Steering: Front axle components, steering linkages, and wheel alignment Rear Axle And Differential: Rear axle housing, differential assembly, and drive shafts Three Point Hitch And Draft Control: Adjustment and repair of the hitch and draft control system Operator Station: Seat, controls, dashboard, and cab components (if equipped) Bodywork And Chassis: Frame, fenders, hood, and mounting points Procedures Included Maintenance Procedures: Routine checks, lubrication, filter replacement, fluid changes Troubleshooting Guide: Systematic approach to identifying and resolving common and uncommon issues Repair Procedures: Step-by-step instructions for component disassembly, repair, and reassembly Overhaul Procedures: Complete engine, transmission, and hydraulic system overhauls Calibration And Adjustment: Settings and adjustments for engine, hydraulics, and PTO Wiring Diagram Interpretation: Detailed explanation of electrical system schematics Technical Depth Depth Of Information: In-depth technical details suitable for professional mechanics and experienced owners 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Print Quality Print Quality: High-resolution scans suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Model: Typically a David Brown AD4/48 or similar diesel engine Engine Type: 4-cylinder, naturally aspirated diesel engine Performance Horsepower: Approximately 70-75 PTO horsepower (exact figure may vary by specific configuration) Torque: Torque figures are substantial for its class, optimized for pulling power. Fuel System Fuel Type: Diesel Injection System: Direct injection, typically with rotary or inline fuel injection pumps (e.g., Lucas CAV) 🔧 Transmission Standard Gearbox Type: David Brown's constant mesh gearbox, often with a twin-lever selector for different speed ranges. Optional Powershift: Some models might have featured a partial powershift option (e.g., High/Low range). Features Pto Speeds: Multiple PTO speeds typically available (e.g., 540/1000 RPM). Clutch: Heavy-duty single or double clutch for transmission and PTO operation. 📐 Dimensions Weights Operating Weight: Typically around 2000-2500 kg (4400-5500 lbs) without ballast. Wheelbase: Standard agricultural tractor wheelbase, optimized for stability. 💡 Technology Features Infotainment Operator Interface: Functional and robust operator controls, with essential gauges for engine parameters. Driver Assistance Traction Control: Mechanical differential lock for enhanced traction in challenging conditions. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250 hours or annually, refer to manual for exact specification. Hydraulic Fluid Change: Recommended at intervals such as 1000 hours or as per manual's guidance. Fluid Specifications Engine Oil Specification: Typically API CD or CE rated diesel engine oil, viscosity SAE 15W-40 or 10W-30 depending on climate. Consult manual for exact grade. Hydraulic Fluid Specification: Universal Tractor Transmission Oil (UTTO) or equivalent, meeting specific viscosity and performance standards (e.g., John Deere J20C). Coolant Specification: Ethylene glycol-based antifreeze with corrosion inhibitors, mixed with distilled water (50/50). Known Issues Common Wear Points: Wear in clutch components, PTO engagement, and potential leaks in hydraulic lines. Engine Maintenance: Regular maintenance of fuel filters, air filters, and ensuring proper cooling is crucial for engine longevity. 📚 Vehicle History Brand Heritage Manufacturer: David Brown Tractors Ltd., a historic British tractor manufacturer. Model Evolution Production Period: The 1490 was part of the '90' series, produced from the late 1970s into the 1980s. Production Manufacturing Location: United Kingdom