🏷️ Basic Information Identification Make: David Brown Model: 1390 Product Name: David Brown Tractor 1390 Workshop Service Manual Repair Codes Product Sku Suggestion: DB1390WSM 👋 Introduction Market Position Manual Purpose: Essential resource for maintenance, repair, and overhaul of David Brown 1390 tractors. Competitive Analysis Manual Advantage: Provides original manufacturer-level detail often missing in generic repair guides. Key Features Data Accuracy: Written by professionals, ensuring accuracy and clarity. Cost Savings: Enables owners to perform repairs and maintenance themselves, saving on labor costs. Accessibility: Instant download provides immediate access without shipping delays. 📋 Manual Details Coverage Areas Primary Coverage: Workshop Service and Repair Page Count Estimated Page Count: Hundreds of pages (typical for original factory manuals) Manual Type Manual Type: Workshop Service Manual / Repair Manual / Factory Service Manual Language Language: English Format Delivery Method: Instant Download File Format: PDF 📖 Manual Coverage Systems Covered Engine Overhaul: Detailed step-by-step instructions for engine rebuild and overhaul. Fuel System: Diagnosis, repair, and calibration of fuel injection systems and components. Cooling System: Radiator, thermostat, water pump, and fan assembly service. Lubrication System: Oil pump, filter, and lubrication circuit maintenance. Transmission And Drivetrain: Clutch, gearbox, PTO (Power Take-Off), differential, and final drive service. Hydraulics: Hydraulic pump, control valve, cylinder, and linkage repair and adjustment. Electrical System: Wiring diagrams, starter, alternator, lighting, and accessory service. Braking System: Brake adjustments, hydraulic system service, and component replacement. Steering System: Power steering pump, cylinder, and linkage service. Front Axle And Steering Geometry: Front axle components, kingpins, and steering alignment. Rear Axle And Hubs: Rear axle components, hub bearings, and wheel mounting. Operator Station: Seat, controls, dashboard, and cab components. Bodywork And Chassis: Fenders, hood, chassis frame, and related components. Procedures Included Routine Maintenance: Periodic maintenance charts and lubrication schedules. Troubleshooting: Diagnostic information and fault-finding procedures for common issues. Repair Instructions: Step-by-step repair procedures for all major systems. Overhaul Procedures: Comprehensive guides for complete component and system overhauls. Wiring Diagrams: Detailed electrical schematics and wiring diagrams. Adjustments And Calibrations: Procedures for adjusting clutches, brakes, and hydraulic systems. Technical Depth Target Audience: Professional Technicians and Advanced DIY Mechanics Diagnostic Capability: Advanced diagnostics and troubleshooting guidance. Rebuild Capability: Complete engine, transmission, and hydraulic rebuild instructions. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Full Printable Zoom Functionality: Zoom In/Out enabled for detailed viewing. Binding Type Binding Type Digital: Digital Download (no physical binding) Paper Type Paper Type Digital: N/A (Digital Format) Requirements Software Requirements: Adobe PDF Reader, WinRAR Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Likely a 4-cylinder direct injection diesel engine (common for this era of David Brown). Engine Manufacturer Details: Specific engine model designation would be detailed within the manual (e.g., David Brown AD4/55). Performance Estimated Horsepower: Typically in the range of 70-80 PTO horsepower, depending on specific engine tune and configurations. Estimated Torque: Torque figures would be specific to the engine variant, detailed in the manual. Fuel System Fuel Injection Type: Direct Injection (DI), likely with rotary or inline fuel injection pump. Fuel Type: Diesel Fuel 🔧 Transmission Standard Transmission Type: Likely a 12-speed fully synchronized gearbox (David Brown's 'SpeedyShift' or similar). Optional Optional Transmission Features: Possible creeper gears or shuttle shift options, detailed in manual. Features Pto Options: Standard and ground speed PTO options, service procedures included. 📐 Dimensions Exterior Overall Length: Varies by configuration, typically around 3.7 meters (146 inches). Overall Width: Varies by track setting, typically around 1.8 meters (70 inches). Weights Operating Weight: Approximately 2600-3000 kg (5700-6600 lbs). Wheelbase: Specific to configuration, manual will provide precise measurements. 🛡️ Safety Features Ratings Safety Guidelines: Manual will include safety precautions for operation and repair. Active Features Braking System Type: Hydraulic wet disc brakes are typical for this model. Passive Features Operator Station Safety: Manual covers procedures related to safe operation of controls and components. 💡 Technology Features Infotainment Infotainment Features: Basic instrumentation: Tachometer, temperature gauge, oil pressure gauge, fuel gauge. Driver Assistance Driver Assistance Features: Focus on mechanical linkages and controls; no electronic driver assistance features. Connectivity Connectivity Features: No electronic connectivity features; purely mechanical and hydraulic systems. 🔧 Maintenance Service Intervals Engine Oil Change Interval: Typically 250 hours, but specific interval detailed in manual. Transmission Oil Change Interval: Typically 500-1000 hours, manual provides exact schedule. Fluid Specifications Engine Oil Specification: API CD or CE grade, SAE 15W-40 recommended (confirm with manual). Transmission Hydraulic Fluid: David Brown Hy-Trans fluid or equivalent UTF (Universal Tractor Transmission) fluid (confirm with manual). Coolant Type: Ethylene glycol based antifreeze with corrosion inhibitors (confirm mix ratio and type in manual). Brake Fluid: DOT 3 or DOT 4 hydraulic fluid for wet brake system (confirm with manual). Known Issues Common Wear Items: Clutch wear, hydraulic pump seals, PTO clutch engagement, and potential electrical connection issues. Troubleshooting Focus: Manual provides guidance on diagnosing and...