🏷️ Basic Information Identification Make: David Brown Model: 1390 Vehicle Type: Tractor 👋 Introduction Market Position Target Audience: Professional technicians, DIY mechanics, tractor owners Key Features Manual Advantage: Instant download, cost-saving for labor Original Source: Written by manufacturers (original workshop manual) Accuracy Completeness: Most accurate and complete available 📋 Manual Details Coverage Areas Manual Scope: Comprehensive workshop service and repair Page Count Estimated Pages: Hundreds (based on product description implying extensive detail) Manual Type Manual Type: Workshop Service Manual / Repair Manual Manual Types Covered: Service Manual, Repair Manual, Workshop Manual, Factory Service Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Overhaul: Yes Transmission Service: Yes Hydraulic System: Yes (implied by general repair and overhaul procedures) Electrical System: Yes (wiring diagrams usually included) Cooling System: Yes Fuel System: Yes Braking System: Yes Steering System: Yes Frontend And Rear Axles: Yes Power Take Off Pto: Yes Chassis And Body: Yes Steering And Front Axle: Yes Rear Axle And Final Drives: Yes Hitch And Draft Control: Yes Procedures Included Periodic Maintenance: Yes (periodic maintenance charts) Step By Step Repairs: Yes Troubleshooting: Yes Overhaul Procedures: Yes Diagnostic Procedures: Yes Specifications And Tolerances: Yes (critical for accurate repairs) Electrical Troubleshooting Charts: Yes Technical Depth Depth Of Information: Professional technician level with DIY accessibility Rebuild Procedures: Complete engine, transmission, and hydraulic system rebuilds Diagnostic Charts: Detailed troubleshooting flowcharts and symptom analysis Torque Specifications: All critical fasteners Timing Procedures: Engine valve and injection timing Manual Completeness Diagrams And Illustrations: Hundreds of pages of diagrams and detailed information 📊 Manual Specifications File Format File Quality: High resolution, clear text and diagrams Print Quality Printable: Full Printable Zoom Capability: Yes (Zoom IN/OUT) Binding Type Delivery Method: Instant Download Paper Type Software Requirements: Adobe PDF Reader & WinRAR Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Manufacturer: Perkins (Common for David Brown tractors of this era) Engine Model: Likely a Perkins 4.236 or similar 4-cylinder diesel (specific model in manual) Engine Displacement: Approximately 3.9 Liters (for Perkins 4.236) Performance Horsepower Approx: 60-70 HP (estimated for 1390 model) Fuel System Fuel Type: Diesel Injection System: Typically Bosch inline fuel injection pump 🔧 Transmission Standard Transmission Type: Manual gearbox with synchronized or unsynchronized options Gear Configuration: Likely 8 forward and 4 reverse gears or similar split-power transmission Features Clutch Type: Dual-stage clutch (for PTO operation) Power Take Off Pto: Standard 540 RPM PTO 📐 Dimensions Weights Unladen Weight Approx: 2500-3000 kg (estimated) Gross Vehicle Weight Rating Gvwr Approx: 5000-5500 kg (estimated) Wheelbase Approx: 2100 mm (estimated) 🛡️ Safety Features Ratings Safety Standards: Designed to meet agricultural machinery safety standards of its era Active Features Braking System Type: Hydraulically operated, enclosed wet disc brakes Passive Features Roll Over Protection: ROPS (Roll-Over Protective Structure) typically available as an option or field-fitted 💡 Technology Features Infotainment Infotainment System: Basic, focused on functional operation (no modern infotainment) Driver Assistance Driver Assistance Features: None (basic tractor controls) Connectivity Connectivity Options: None 🔧 Maintenance Service Intervals Engine Oil Change Interval: Typically 250 hours (specified in manual) Transmission Oil Change Interval: Typically 1000 hours (specified in manual) Air Filter Service: Regularly depending on operating conditions (specified in manual) Fluid Specifications Engine Oil Type: API CD or CE rated diesel engine oil, SAE 15W-40 or 20W-50 recommended (specifics in manual) Transmission Hydraulic Fluid: Universal Tractor Transmission Oil (UTTO) or equivalent (specific grade in manual) Coolant Type: Ethylene glycol based antifreeze with corrosion inhibitors (specified in manual) Known Issues Common Wear Points: Clutch wear, PTO clutch wear, hydraulic pump efficiency, injector pump calibration Electrical Gremlins: Can occur with age; wiring loom integrity and connector corrosion are common focus areas. Diesel Particulate Matter: Not applicable to this era of tractor; focus is on fuel system cleanliness and injector wear. 📚 Vehicle History Brand Heritage David Brown Legacy: David Brown Tractors Ltd. was a prominent British manufacturer known for robust and reliable agricultural machinery. Model Evolution David Brown 1390 Positioning: The 1390 was part of David Brown's later range, offering increased power and features compared to earlier models. Production Production Period Approx: Late 1970s to early 1980s Manufacturing Location: Meltham, West Yorkshire, England