Target Audience:
Owners, operators, and maintenance technicians of David Brown 1390, 1394, and 1490 tractors.
Manual Source:
Actual Genuine Repair Service Factory Manuals, not third-party publications.
Cost Savings:
Enables DIY servicing to save significant shop labor costs (estimated $50-$60 per hour).
Accessibility:
Easy to use for computer novices, allowing direct printing of needed information.
Searchability:
PDF format allows for easy searching of specific information.
Instruction Style:
Step-by-step instructions with numbered guides, supported by detailed illustrations and photos.
Primary Coverage:
Comprehensive service, repair, and maintenance for David Brown 1390, 1394, and 1490 tractor models.
Estimated Pages:
Hundreds (exact number not specified, but implied to be extensive).
Type:
Factory Service Repair Manual
Authenticity:
Official Factory Service Repair Manual, ensuring accuracy and completeness.
Digital Format:
PDF Download
Engine:
Detailed coverage including disassembly, servicing, intake, and exhaust systems.
Lubrication System:
Comprehensive information on lubrication system maintenance and repair.
Cooling System:
Detailed procedures for the cooling system.
Fuel System:
In-depth coverage of the fuel system for optimal performance and troubleshooting.
Transmission:
Complete repair and servicing information for the transmission.
Drive Chain Sprockets:
Detailed instructions for inspection, maintenance, and replacement of drive chains and sprockets.
Rear Axle:
Detailed instructions for rear axle service and repair.
Front Axle:
Front axle service and repair procedures.
Brakes:
Comprehensive brake system diagnostics and repair.
Steering:
Detailed coverage of the steering system.
Shocks:
Information related to shock absorber systems.
Body Work:
Guidance on body panel repair and maintenance.
Hydraulic System:
Extensive coverage of the hydraulic system.
Electrical System:
Detailed electrical system diagnostics, including wiring diagrams.
Clutch:
Complete overhaul and adjustment procedures for the clutch assembly.
Routine Maintenance:
Procedures for all routine maintenance tasks.
Advanced Troubleshooting:
Advanced troubleshooting guide for diagnosing and correcting complex issues.
Disassembly Servicing:
Step-by-step disassembly and servicing instructions for various components.
General Repair:
General repair procedures applicable across multiple systems.
Separation Procedures:
Detailed instructions for separating major assemblies.
Clutch Service:
Complete clutch system repair and maintenance.
Wiring Diagrams:
Detailed wiring diagrams are included, critical for electrical system troubleshooting and repair.
Rebuilds:
Procedures for rebuilding major components like the engine, transmission, and hydraulic system.
Restoration:
Comprehensive information to support complete restoration projects.
Depth:
Factory-level diagnostic and repair procedures, equivalent to what professional technicians use.
Detail Level:
Includes substeps for detailed repair procedures, notes, cautions, and warnings.
Illustrations:
Contains all necessary illustrations, drawings, photos, and enlarged insets for clear guidance.
Diagnostic Tools:
Provides information that enables the use of diagnostic principles for troubleshooting.
Troubleshooting Guide:
Includes an advanced troubleshooting guide designed to help diagnose and correct any problem encountered.
Engine Family:
David Brown Diesel Engine (specific displacement and configuration depend on exact model year and variant).
Engine Type:
Naturally aspirated diesel engine.
Horsepower Range:
Typically in the 60-80 HP range, with variations between 1390, 1394, and 1490 models.
Torque Specifications:
Specific torque figures would be detailed within the manual, critical for rebuilds and adjustments.
Injection System:
Likely rotary or inline injection pump systems, dependent on engine variant; manual covers detailed servicing.
Transmission Type:
Likely a mechanically operated gearbox with multiple forward and reverse gears. Synchromesh may be present depending on variant.
Optional Features:
Potential for creeper gears or other PTO/transmission variations depending on configuration.
Clutch Type:
Dual-stage or single-stage clutch likely, allowing for independent PTO operation.
Gear Selection:
Manual transmission with a range of gears, offering flexibility for various field operations.
Safety Features Coverage:
Manual would cover the safe operation and maintenance of safety systems like brakes, lights, and guarding.
Brake System Type:
Likely hydraulic wet disc brakes or similar robust braking systems, detailed in the manual.
Engine Oil Change:
Intervals typically range from 100-250 hours, depending on operating conditions; manual specifies precise intervals and oil types.
Hydraulic Fluid Change:
Recommended intervals for hydraulic fluid and filter changes are crucial and detailed in the manual.
Engine Oil Type:
Likely requires a high-quality diesel engine oil, e.g., API CF or CD specification, viscosity grade dependent on ambient temperature (e.g., 15W-40).
Hydraulic Fluid Type:
Specified tractor hydraulic fluid (e.g., UTF - Universal Tractor Transmission Fluid) or ISO VG 46 hydraulic oil.
Coolant Specifications:
Typically a conventional ethylene glycol based coolant with appropriate antifreeze/anti-corrosion additives.
Transmission Fluid Type:
Likely a specific gear oil or universal tractor fluid, as specified by the manufacturer.
Common Wear Points:
Manual would address common wear items such as clutch wear, hydraulic pump performance degradation, and potential front axle wear.
Electrical Diagnostics:
Wiring diagrams and troubleshooting for common electrical faults (e.g., starter, alternator, lighting issues).
David Brown Legacy:
David Brown tractors are known for their robust build quality and agricultural heritage, originating from the UK.
Series Development:
The 1390, 1394, and 1490 represent a generation of powerful, versatile tractors designed for a range of agricultural tasks.
Manufacturing Origin:
Manufactured by David Brown Tractors, later part of the Tenneco family.
