Target User:
Designed for David Brown tractor owners, farmers, agricultural mechanics, and restoration enthusiasts.
Value Proposition:
Provides the necessary information to perform repairs and maintenance cost-effectively, extending the life and optimizing the performance of the David Brown 1390 tractor.
User Friendliness:
Written for both the do-it-yourselfer and experienced mechanic, indicating clear and concise instructions.
Completeness:
Marketed as a complete service repair manual, aiming to be the sole resource for all repair and maintenance needs.
Competitors:
Competed with tractors from manufacturers such as Massey Ferguson, Ford, John Deere, and International Harvester during its production era.
Engine:
Comprehensive engine overhaul, diagnostics, and repair procedures for the David Brown diesel engine.
Fuel System:
Detailed information on the fuel injection system, pumps, injectors, filters, and troubleshooting.
Cooling System:
Maintenance, repair, and specifications for the radiator, thermostat, water pump, and cooling fan.
Electrical System:
Wiring diagrams, component testing, charging system, starting system, and lighting maintenance.
Chassis:
Includes steering, braking, hydraulics, PTO, and front/rear axle maintenance and repair.
Hydraulics:
In-depth coverage of the hydraulic system, pump, control valves, lift arms, and troubleshooting.
Emission Control Information:
Details on emission control systems as per the regulations of the production era, if applicable.
Front Axle Steering:
Maintenance, adjustment, and repair of the front axle and steering system, including tie rods, kingpins, and power steering components if equipped.
Rear Axle Differential:
Service and maintenance procedures for the rear axle housing, differential, and final drives.
Preventive Maintenance:
Scheduled maintenance tasks, lubrication points, and inspection procedures.
Troubleshooting:
Systematic diagnostic procedures and common issue resolutions for various tractor systems.
Repair Rebuild:
Step-by-step instructions for disassembling, repairing, and reassembling major components and systems.
General Information:
Provides an overview of the tractor, safety precautions, and general operating guidelines.
Services Information:
Likely covers service bulletins, torque specifications, special tool requirements, and general repair best practices.
Engine Overhaul:
Detailed procedures for engine disassembly, component inspection, overhaul, and reassembly, including piston, ring, bearing, and valve service.
Transmission Repair:
Step-by-step guides for transmission disassembly, gear replacement, synchronizer repair, and clutch servicing.
Depth:
Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds. Suitable for both novice DIYers and experienced technicians.
Illustrations:
The manual is described as containing 'hundreds of photos and illustrations' to aid in understanding repair procedures.
Compatibility:
Compatible with all versions of Windows and Mac OS.
Printability:
Fully printable; users can print specific pages or the entire manual.
Zoom Functionality:
Allows for Zoom IN/OUT for detailed viewing of diagrams and text.
Software Requirements:
Requires Adobe PDF Reader and WinZIP for extraction and viewing.
Completeness Level:
Complete Service Repair Manual, providing detailed information for all repair and maintenance needs.
Engine Model:
Likely a David Brown 3- or 4-cylinder diesel engine (specific model number not provided in product description).
Horsepower Range:
Typically in the 70-90 HP range, dependent on specific engine variant and tuning.
Torque Characteristics:
Designed for robust torque output suitable for heavy agricultural work.
Injection System:
Likely a rotary or inline injection pump system (e.g., Simms, CAV, or Lucas).
Bore Stroke Est:
Specific bore and stroke details would be within the manual, but typical for engines of this size and era.
Cylinders:
Likely 3 or 4 cylinders, specific to the 1390 model.
Engine Oil Change:
Refer to manual for specific intervals (typically 250-500 operating hours).
Fuel Filter Replacement:
Refer to manual for specific intervals (often annually or based on operating hours/fuel quality).
Engine Oil Type:
Likely a heavy-duty diesel engine oil, e.g., SAE 15W-40 API CD or CE specification (verify with manual).
Hydraulic Fluid Type:
Typically a high-quality tractor hydraulic fluid (e.g., UTF - Universal Tractor Transmission fluid) or Type 'A' Suffix 'A' ATF (verify with manual for specific capacities and types).
Coolant Type:
Ethylene glycol-based antifreeze mixture (e.g., 50/50 with water) for freeze and corrosion protection (verify with manual for specific mix ratios).
Gearbox Oil Type:
Appropriate gear oil specification (e.g., SAE 90 API GL-4 or GL-5) for the transmission and differential (verify with manual).
Common Wear Items:
Potential wear on clutch, hydraulics, and front axle components due to age and usage. The manual will guide on diagnosing and addressing these.
Electrical Gremlins:
Older electrical systems can be prone to wiring degradation, switch failures, and battery/charging system issues; the manual's wiring diagrams are crucial here.
Hydraulic System Performance:
Potential issues with hydraulic pump wear, leaky seals, or control valve problems over time; the manual will detail diagnostic checks and repair methods.
Engine Oil Capacity:
Refer to manual for precise oil capacity (typically 7-10 liters).
Hydraulic System Capacity:
Refer to manual for hydraulic system fluid capacity (essential for proper operation of 3-point hitch and attachments).
