🏷️ Basic Information Identification Make: David Brown Model: 1390 Product Type: Service Repair Manual (WSM) 👋 Introduction Market Position Target Audience: Tractor owners, farm mechanics, agricultural workshops Competitive Analysis Value Proposition: Cost savings through self-repair, enhanced knowledge and independence from mechanics Key Features Ease Of Use: Easy-to-follow step-by-step instructions for all repair jobs Completeness: Comprehensive coverage of all services, repairs, and routine maintenance 📋 Manual Details Coverage Areas Primary Coverage: All service and repair jobs, routine maintenance Page Count Estimated Page Count: Extensive (typically hundreds of pages for WSM) Manual Type Manual Type: Workshop Service Manual (WSM) / Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download Requirements Software Requirement: Adobe PDF Reader Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine System: Detailed repair, overhaul, and troubleshooting for the entire engine assembly Fuel System: Inspection, repair, and adjustment of fuel injection pump, injectors, filters, and lines Cooling System: Radiator, thermostat, water pump, fan, and associated plumbing maintenance and repair Lubrication System: Oil pump, oil filter, lubrication passages, and oil cooler maintenance and repair Transmission System: Service and repair of gearbox, clutch, PTO (Power Take-Off), and hydraulic lift mechanisms Drivetrain: Front axle, rear axle, differential, drive shafts, and wheel hubs Braking System: Hydraulic brake system components, adjustments, and repair procedures Steering System: Power steering pump, steering box, tie rods, and linkage maintenance and repair Electrical System: Starting system, charging system, lighting, ignition (if applicable), and instrument panel diagnostics and repair Hydraulic System: Hydraulic pump, control valves, cylinders, filters, and associated plumbing for implement control Body And Chassis: Frame, fenders, operator platform, and mounting points Procedures Included Routine Maintenance: Oil change intervals, filter replacement, lubrication points, and safety checks Troubleshooting: Diagnostic procedures for common problems and fault finding guides Repair Procedures: Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly Overhaul: Complete engine, transmission, and hydraulic system overhaul procedures Calibration Adjustment: Fuel injection timing, valve clearance, brake adjustments, and hydraulic system calibration Technical Depth Technical Depth: Comprehensive (covers basic to advanced repairs and diagnostics) Diagnostic Tools: Identification of specialized tools and equipment required for specific repairs Wiring Diagrams: Detailed electrical wiring schematics for all circuits Illustrations: High-quality, step-by-step pictures and diagrams 📊 Manual Specifications File Format File Format Detail: PDF Print Quality Print Quality: Full Printable Quality Binding Type Binding Type: Digital (Downloadable - Print on Demand) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Likely a 3 or 4-cylinder naturally aspirated diesel engine (specifics depend on variant) Performance Horsepower Range: Typically in the 60-80 HP range (exact figure requires specific engine code) Torque Range: Varies with engine displacement and tuning Fuel System Injection Type: Indirect injection, typically with a rotary or inline injection pump Fuel Type: Diesel Cooling System Cooling Method: Water-cooled 🔧 Transmission Standard Transmission Type: Manual transmission with synchronized gears (common configurations include 8x2 or 12x4 speed) Optional Optional Features: Possibly a hydraulic power shuttle or creeper gears depending on specific configurations Features Pto: Live PTO and/or ground-speed PTO (Power Take-Off) functionality 📐 Dimensions Exterior Wheelbase: Varies by configuration (e.g., 2WD vs. 4WD) Overall Length: Varies Overall Width: Varies Weights Operating Weight: Typically around 2000-3000 kg (4400-6600 lbs) without ballast Max Gross Weight: Varies with ballast and configuration 🛡️ Safety Features Ratings Rollover Protection: ROPS (Roll-Over Protective Structure) typically standard or optional depending on market and year Active Features Braking System Type: Wet disc or drum brakes, hydraulically operated Passive Features Seatbelt: Seatbelts for operator safety, especially if equipped with ROPS 💡 Technology Features Infotainment Infotainment System: Basic (operator comfort focus, no advanced electronics) Driver Assistance Driver Assistance Features: None (mechanical controls and basic instrumentation) Connectivity Connectivity Options: None 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250-300 operating hours, or annually Oil Filter Replacement: With every engine oil change Fuel Filter Replacement: As recommended, often at 250-500 hour intervals or as needed Air Filter Servicing: Regular inspection and cleaning/replacement based on operating conditions Fluid Specifications Engine Oil Type: API CD or CE rated diesel engine oil, SAE 15W-40 recommended (consult manual for specifics) Transmission Hydraulic Fluid: David Brown approved UTTO (Universal Tractor Transmission Oil) or equivalent Coolant: Ethylene glycol based antifreeze mixture (50/50 with water) for freeze protection and corrosion inhibition Known Issues Hydraulic System Leaks: Common due to aging seals and hoses in older tractors Clutch Wear: Normal wear and tear, replacement procedures are key Electrical Corrosion: Can occur in older wiring harnesses, especially in damp environments 📚 Vehicle History Brand Heritage Manufacturer: David Brown Tractors Ltd., formerly of Meltham, Yorkshire, England Ownership: Acquired by Tenneco (parent of Case) in 1979 Model Evolution Series Placement: Part of the 1300 series range, succeeding earlier models and influencing later designs Production Production Period: The 1390 was produced through the 1970s and early...