Target User Base:
Professional technicians and serious DIY mechanics working on David Brown 1390 tractors.
Value Proposition:
Provides comprehensive, factory-level information equivalent to what professionals use, accessible instantly and without shipping costs.
Navigational Aids:
Numbered table of contents, bold figure numbers for quick illustration matching, detailed sub-steps, notes, cautions, and warnings.
Visual Aids:
Detailed illustrations, drawings, photos, and enlarged inset views for clear part identification and procedural guidance.
Delivery Method:
Instant Download
Engine System:
Detailed repair, rebuild, and overhaul procedures for the engine.
Transmission System:
Repair and maintenance of the gearbox, clutch, and associated components.
Hydraulic System:
Diagnosis and repair of the tractor's hydraulic system, including pumps, valves, and cylinders.
Electrical System:
Comprehensive coverage of electrical diagnostics, troubleshooting, and wiring diagrams.
Braking System:
Detailed procedures for brake system maintenance and repair.
Cooling System:
Maintenance and repair of the engine cooling system.
Fuel System:
Maintenance and repair of the fuel injection system and fuel delivery.
Steering System:
Diagnosis and repair of the steering mechanism.
Power Take Off Pto:
Maintenance and repair of the PTO system.
Front Axle And Steering:
Repair procedures for the front axle assembly and steering linkage.
Rear Axle And Differential:
Service and repair of the rear axle and differential components.
Chassis And Frame:
Information on chassis and frame maintenance and repair.
Bodywork And Fenders:
Procedures for bodywork repair and fender maintenance.
Routine Maintenance:
Includes service schedules, fluid changes, filter replacements, and lubrication points.
Diagnostic Procedures:
Extensive troubleshooting guides and diagnostic steps for various systems.
Rebuilding Procedures:
Detailed step-by-step instructions for rebuilding major components like engines and transmissions.
Repair Procedures:
Comprehensive guides for all common and uncommon repair tasks.
Refurbishment Procedures:
Guidance for restoring components and the overall tractor.
Wiring Diagrams:
Detailed electrical wiring diagrams for accurate troubleshooting and repairs.
Troubleshooting Electrical:
Specific procedures for diagnosing and rectifying electrical faults.
Depth Of Coverage:
Designed for professional technicians, with adequate data for DIY mechanics, covering everything from basic maintenance to complete rebuilds.
Engine Manufacturer:
David Brown (Likely derived from Perkins or similar, details within manual)
Engine Configuration:
Likely inline 3 or 4 cylinder diesel, specific details in manual.
Engine Displacement:
Not explicitly stated in product info, but typically around 3.0-4.0 liters for this model class.
Horsepower Rating:
Typically in the 70-80 HP range for the 1390 series.
Torque Rating:
Specific figures depend on engine variant, detailed in manual.
Injection System:
Likely mechanical direct injection or indirect injection, detailed in manual.
Transmission Type:
Likely a multi-speed gearbox with options for synchronization (e.g., Selectamatic, Hydroshift).
Gear Configurations:
Multiple forward and reverse gears, specific counts and ratios detailed in manual.
Clutch Type:
Dual-stage dry clutch or single-stage clutch, details provided.
Drive System:
Two-wheel drive (2WD) standard, 4WD may have been optional depending on exact configuration.
Overall Length:
Typical for tractors of this era, specific dimensions in manual.
Overall Width:
Variable based on tire size and configuration, details in manual.
Wheelbase:
Specific measurement provided in manual.
Operating Weight:
Typically around 2500-3500 kg, exact figures in manual.
Towing Capacity:
Detailed in manual based on tractor configuration and hydraulics.
Safety Standards:
Manual will likely cover original safety features and adherence to tractor safety regulations of its production era.
Braking System Type:
Typically mechanical drum brakes or hydraulic disc brakes, details in manual.
Rollover Protection:
ROPS (Roll Over Protective Structure) may be standard or optional; manual will detail its installation and maintenance.
Instrumentation:
Basic dashboard instrumentation including tachometer, temperature gauge, oil pressure, fuel gauge, and warning lights.
Powertrain Controls:
Manual throttle, gear lever, clutch pedal, and potentially advanced hydraulic controls like draft control and position control.
Engine Oil Change:
Typically 250 hours or annually, specific intervals detailed in manual.
Transmission Oil Change:
Variable, usually tied to major service intervals or 1000-2000 hours, as per manual.
Hydraulic Fluid Change:
Typically 1000 hours or annually, specific intervals detailed in manual.
Engine Oil Grade:
Likely API CD or CE classification, SAE 15W-40 or 10W-30 depending on climate, specified in manual.
Hydraulic Fluid Type:
Universal Tractor Transmission Fluid (UTTF) or similar, with specific viscosity and additive packages detailed in manual.
Coolant Specification:
Ethylene glycol-based antifreeze with corrosion inhibitors, specific mix ratio and type in manual.
Common Wear Points:
Potential wear in hydraulic pumps, clutch plates, PTO components, and front axle kingpins, addressed in manual.
Electrical Reliability:
Older wiring harnesses can degrade; manual provides diagnostic and repair guidance.
Manufacturer History:
David Brown Tractors was a British agricultural machinery manufacturer known for its robust and reliable tractors, eventually becoming part of Tenneco (Case IH).
Model Lineage:
The 1390 is part of David Brown's later series of tractors, representing advancements in design and technology from previous generations.
Production Period:
The 1390 model was produced in the late 1970s and early 1980s.
