Target Audience:
Do-it-yourselfer and experienced mechanic
Value Proposition:
Inexpensive way to keep vehicle working properly, fix problems in the cheapest way, reliable source of information for understanding and preventing future problems.
Advantage:
Highly detailed, comprehensive coverage, hundreds of photos and illustrations.
Key Features:
• Maintenance schedule
• Repair procedures
• Complete disassembly instructions
• Hundreds of photos and illustrations
Systems Covered:
• General Information
• Periodic Maintenance
• Engine
• Fuel System
• Cooling System
• Electrical System
• Chassis
• Services Information
• Emission Control Information
Engine Details:
Engine overhaul, cylinder head, pistons, crankshaft, camshaft, lubrication system, cooling system, fuel system (injection pump, injectors), starting system.
Transmission Details:
Gearbox overhaul, clutch replacement, PTO operation, differential, final drives.
Chassis Details:
Front axle, rear axle, steering system, braking system, hydraulic lift system, hitch, drawbar.
Electrical System Details:
Wiring diagrams, starter motor, alternator, battery, lighting, instrumentation.
Procedures Included:
• Maintenance
• Repair
• Rebuilding
• Refurbishing
• Restoration
• Troubleshooting
• Preventative Maintenance
Troubleshooting Procedures:
Diagnostic charts and step-by-step troubleshooting guides for various systems and common faults.
Maintenance Procedures:
Detailed instructions for routine checks, fluid changes, filter replacements, lubrication points, and component inspections.
Repair Procedures:
Step-by-step guides for dismantling, servicing, and reassembling all major components and systems.
Technical Depth:
Comprehensive (step-by-step instructions based on complete disassembly, hundreds of photos and illustrations)
Torque Specifications:
Includes critical torque values for fasteners and assembly of various components.
Clearances And Tolerances:
Provides specified clearances and tolerances for engine and transmission components during rebuilds.
Special Tools:
Lists any specialized tools required for specific repair or maintenance procedures.
Engine Type:
Diesel (typical for David Brown tractors of this era, specific details not provided in product info)
Horsepower:
Not specified in product information, but typically in the 70-90 PTO HP range for this model.
Torque:
Not specified in product information.
Fuel System Type:
Direct Injection (typical for David Brown diesel engines of this era)
Engine Manufacturer:
David Brown (likely manufactured by themselves or a specialist supplier)
Engine Block:
Cast Iron (typical)
Cooling System Type:
Water-cooled (typical)
Ignition System:
Compression Ignition (Diesel)
Transmission Type:
Manual (likely a synchronized gearbox, common for the era)
Number Of Speeds:
Likely 8 forward and 2 reverse speeds, or similar configuration.
Optional Transmission:
Not specified, but PTO options were common.
Gear Shifting:
Likely standard H-pattern shifter.
Clutch Type:
Dual-stage dry clutch (typical for PTO operation and transmission engagement)
Wheelbase:
Not specified, but typical for a tractor of this size.
Operating Weight:
Not specified, but generally in the 2000-3000 kg range.
Drawbar Capacity:
Not specified, but robust for its class.
Safety Standards Compliance:
Likely met relevant British and European agricultural safety standards of its production era.
Braking System:
Hydraulic disc brakes (typically internal, oil-immersed).
Parking Brake:
Mechanical handbrake or lever-operated brake.
Operator Station:
Open station with roll bar (ROPS) may have been optional or standard depending on market and year.
Engine Oil Change Interval:
Typically 250 hours or annually, but refer to manual for exact specification.
Air Filter Service:
Check regularly, replace as needed (interval depends on operating conditions).
Engine Oil Specification:
Typically API CD or CE rated multi-grade diesel engine oil, SAE 15W-40 recommended for most conditions. Refer to manual for exact specification.
Hydraulic Fluid Specification:
Likely a high-quality hydraulic transmission fluid (HTF) or UTF (Universal Tractor Transmission Oil) compatible with David Brown systems. Refer to manual for exact specification.
Coolant Specification:
Ethylene glycol-based antifreeze/coolant, typically a 50/50 mix with distilled water. Refer to manual for exact specification and freeze protection.
Transmission Fluid Type:
Likely same as hydraulic fluid specification (HTF/UTF).
Common Issues:
• Hydraulic system leaks
• Wear in PTO clutch
• Engine seal wear (e.g., crankshaft rear seal)
• Corrosion on bodywork
• Electrical connection issues over time
Engine Oil Filter Part Number:
Varies by filter manufacturer (e.g., Mann-Filter, Wix, Baldwin). Manual will list OEM numbers or compatible cross-references.
Fuel Filter Part Number:
Varies by filter manufacturer. Manual will list OEM numbers or compatible cross-references.
Air Filter Part Number:
Varies by filter manufacturer. Manual will list OEM numbers or compatible cross-references.
Brand Origin:
United Kingdom
Manufacturer:
David Brown Tractors Ltd.
Model Lineage:
Part of David Brown's established range of agricultural tractors, known for robustness and reliability.
Production Years:
The 1490 was produced in the early to mid-1980s.
Manufacturing Location:
Likely Meltham, Yorkshire, England.