🏷️ Basic Information Identification Make: David Brown Model: 1390 Type: Tractor 👋 Introduction Market Position Target User Base: Professional technicians and serious DIY mechanics working on David Brown 1390 tractors. Competitive Analysis Value Proposition: Provides comprehensive, factory-level information equivalent to what professionals use, accessible instantly and without shipping costs. Key Features 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 📋 Manual Details Coverage Areas Primary Coverage: Full Service Repair and Maintenance Page Count Estimated Page Count: Extensive (Specific count not provided, described as very detailed) Manual Type Manual Classification: Full Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered 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. Procedures Included 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. Technical Depth Depth Of Coverage: Designed for professional technicians, with adequate data for DIY mechanics, covering everything from basic maintenance to complete rebuilds. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Full Printable (All pages) Binding Type Binding Method: Digital Download (Printable) Paper Type Digital Format Details: Digital file, can be burned to CD-ROM or saved to hard drive. ⚙️ Engine Specifications Primary Engine Engine Manufacturer: David Brown (Likely derived from Perkins or similar, details within manual) Engine Type: Diesel 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. Performance Horsepower Rating: Typically in the 70-80 HP range for the 1390 series. Torque Rating: Specific figures depend on engine variant, detailed in manual. Fuel System Injection System: Likely mechanical direct injection or indirect injection, detailed in manual. 🔧 Transmission Standard 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. Features 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. 📐 Dimensions Exterior 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. Weights Operating Weight: Typically around 2500-3500 kg, exact figures in manual. Towing Capacity: Detailed in manual based on tractor configuration and hydraulics. 🛡️ Safety Features Ratings Safety Standards: Manual will likely cover original safety features and adherence to tractor safety regulations of its production era. Active Features Braking System Type: Typically mechanical drum brakes or hydraulic disc brakes, details in manual. Passive Features Rollover Protection: ROPS (Roll Over Protective Structure) may be standard or optional; manual will detail its installation and maintenance. 💡 Technology Features Infotainment Instrumentation: Basic dashboard instrumentation including tachometer, temperature gauge, oil pressure, fuel gauge, and warning lights. Driver Assistance Powertrain Controls: Manual throttle, gear lever, clutch pedal, and potentially advanced hydraulic controls like draft control and position control. 🔧 Maintenance Service Intervals 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. Fluid Specifications Engine Oil Grade: Likely API CD or CE classification, SAE 15W-40 or 10W-30 depending on climate, specified in manual. Hydraulic Fluid Type:...