Target Audience:
Do-it-yourself tractor owners and professional mechanics.
Value Proposition:
Inexpensive way to keep the David Brown 1390 working properly, providing essential repair and service information.
Availability:
Essential resource for owners seeking to maintain and repair their David Brown 1390 tractor, a potentially aging but reliable piece of agricultural machinery.
Accessibility:
Instant download, printable pages for workshop use.
Completeness:
Described as a 'complete' manual covering 'every detail'.
Usability:
Numbered instructions, bold figure numbers, and a table of contents enhance ease of use.
Primary Focus:
Comprehensive service, repair, and maintenance of the David Brown 1390 tractor.
Listed Systems:
General Information, Engine Mechanical System, Engine Electrical System, Emission Control System, Fuel System, Suspension System, Clutch System, Manual Transaxle System, Automatic Transaxle System, Driveshaft and Axle, Steering System, Brake System, Body Interior and Exterior, Body Electrical System, Restraint System.
Estimated Page Count:
Detailed page count not specified, but described as a 'complete' manual with 'every detail'.
Type:
Factory Service Repair Manual
Delivery Method:
Instant Download
Software Requirements:
Adobe PDF Reader, WinZip
Compatibility:
All Versions of Windows & Mac
Engine Mechanical:
Detailed coverage of engine assembly, disassembly, component inspection, repair, and overhaul for mechanical systems.
Engine Electrical:
Includes wiring schematics, diagnosis, troubleshooting, and repair procedures for the tractor's electrical system.
Fuel System:
Comprehensive information on fuel injection, pumps, filters, and troubleshooting.
Transmission Manual:
Detailed instructions for maintenance, repair, and overhaul of the manual transaxle system.
Transmission Automatic:
Coverage for the automatic transaxle system, including operation and repair.
Hydraulics And Pto:
Likely covered under general information or specific system sections; detailed coverage implied for operational systems.
Brake System:
Procedures for inspection, maintenance, and repair of the braking system.
Steering System:
Detailed guidance on steering system components, diagnosis, and repair.
Body Electrical:
Wiring diagrams and troubleshooting for lights, instrumentation, and other body electrical components.
Maintenance:
Includes routine maintenance tasks, service intervals, and fluid specifications.
Troubleshooting:
Dedicated troubleshooting sections for diagnosing and resolving common and complex issues, particularly for electrical systems.
Repair:
Step-by-step repair procedures for virtually all mechanical, electrical, and hydraulic components.
Rebuilds:
Detailed instructions for engine, transmission, and major component overhauls and rebuilds.
Diagnostics:
Emphasis on diagnosing problems with detailed illustrations and wiring diagrams.
Depth:
Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds, suitable for both DIY and professional mechanics.
Diagnostic Tools:
Implies use of standard mechanic's tools and diagnostic techniques; specialized tools likely identified within procedures.
Illustrations:
Detailed illustrations, diagrams, and photos for all procedures.
Wiring Schematics:
Includes detailed wiring diagrams for electrical system diagnostics and repair.
Engine Family:
David Brown diesel engine (specific model/code not provided in product info).
Displacement Estimation:
Typically in the 3.0-4.0 liter range for tractors of this era and class. Specifics would be detailed in the manual.
Horsepower Estimation:
Likely in the 60-80 HP range. Specifics would be detailed in the manual.
Torque Estimation:
Torque figures would be detailed in the manual, crucial for understanding pulling power.
Fuel Delivery:
Diesel injection system. Manual will cover pump, injectors, and associated components.
Cooling Type:
Likely liquid-cooled, with details on radiator, thermostat, and water pump in the manual.
Oil Capacity Estimation:
Oil capacity and specific oil grades (e.g., API Service Classification, viscosity) would be provided in the manual.
Type:
Manual transaxle system (gearbox and differential).
Type:
Automatic Transaxle System (coverage provided).
Gear Selection:
Details on gear shifting mechanisms, clutch operation, and transmission ratios.
Power Take Off Pto:
While not explicitly listed as a system, PTO operation and maintenance are typically covered within transmission or drivetrain sections of tractor manuals.
Transmission Oil:
Specific type and capacity of transmission fluid, likely a specialized tractor hydraulic fluid (e.g., UTF/TDH) for shared hydraulic/transmission systems, would be detailed.
Overall Length Estimation:
Dimensions will be provided in the manual; typically around 3.5-4.0 meters.
Overall Width Estimation:
Dimensions will be provided in the manual; typically around 1.8-2.2 meters.
Operating Weight Estimation:
Weight figures would be detailed in the manual, crucial for transport and operational stability.
Front Axle Load Estimation:
Front and rear axle load capacities would be specified for safe operation and potential repairs.
Rollover Protection:
The manual would cover safety features, likely including recommendations or requirements for Roll-Over Protective Structures (ROPS) if fitted.
Braking System:
Details on brake system operation, maintenance, and safety checks are crucial.
Operator Station:
Information on the operator's station, seat, controls, and related safety considerations would be present.
Features:
Tractors of this era primarily focused on functionality; infotainment would be limited to basic instrumentation (tachometer, temperature gauge, oil pressure warning light).
Features:
Driver assistance systems were minimal; focus would be on the operational controls of the tractor, power steering, and PTO engagement.
Features:
No electronic connectivity features typical of modern vehicles.
Engine Oil Change:
Specific intervals (e.g., every 250 hours or annually) and oil type/viscosity for engine oil changes would be detailed.
Transmission Oil Change:
Recommended service intervals for transmission and hydraulic fluid changes, including fluid type and filter replacement.
Engine Oil Spec:
Detailed specifications for engine oil viscosity grade and API service classification (e.g., SAE 15W-40, API CD or better).
Hydraulic Transmission Fluid Spec:
Specifications for Universal Tractor Transmission Fluid (UTTF) or equivalent, including viscosity and performance requirements, are critical.
Coolant Spec:
Coolant type (e.g., ethylene glycol) and mixture ratio for the cooling system would be provided.
Common Wear Items:
The manual would likely highlight common wear items such as clutch, brakes, seals, and potential issues with older diesel injection systems.
Electrical Gremlins:
Given the age, electrical connections, wiring harness degradation, and starter/alternator issues can be common; the manual's electrical section is vital.
Hydraulic System Performance:
The manual would guide troubleshooting of hydraulic lift issues, PTO engagement problems, or steering system responsiveness.
Manufacturer:
David Brown Tractors, a historically significant British tractor manufacturer.
Model Placement:
The 1390 is part of David Brown's later product lines, representing advancements in tractor technology of its era.
Production Period Estimation:
Likely produced in the late 1970s or early 1980s, a period when David Brown was integrated into the Tenneco (J.I. Case) group.
