The David Brown 1390, 1394, and 1490 tractor models represent a robust line of agricultural machinery from a manufacturer with a significant heritage in the industry. Produced in the 1980s, these tractors were known for their durable construction and reliable performance in demanding agricultural settings. Engineered with David Brown's own diesel engine designs, these machines were built to handle a variety of tasks, embodying the brand's commitment to practical engineering and longevity. Their design focused on essential functionality and mechanical integrity, making them a capable choice for farmers and operators seeking dependable power. This comprehensive Factory Service Repair Manual provides in-depth guidance for the David Brown 1390, 1394, and 1490 models. It covers all essential systems, including detailed information on the engine, drivetrain, transmission, hydraulics, electrical components, brakes, and steering. The manual includes step-by-step repair procedures, standard maintenance schedules, and troubleshooting advice, designed to assist both do-it-yourself enthusiasts and professional mechanics. With hundreds of pages of detailed information, illustrations, and specifications, this manual is an indispensable resource for maintaining the optimal performance and longevity of your David Brown tractor. 🏷️ Basic Information Identification Make: David Brown Model: 1390, 1394, 1490 Codes Manual Type: Factory Service Repair Manual 👋 Introduction Market Position Target Audience: Do-it-yourselfers (DIY) and experienced mechanics. Key Features Convenience: Digital format offers superior convenience and cost-effectiveness compared to old paper manuals. Cost Savings: Inexpensive way to keep the vehicle working properly and save money by performing repairs oneself. Completeness: COMPLETE official full factory service repair manual, no extra fees, no expiry dates. Accessibility: Accessible on any computer or mobile device via web browser. 📋 Manual Details Coverage Areas Covered Models: David Brown 1390, David Brown 1394, David Brown 1490 Page Count Estimated Pages: Hundreds (exact count not specified, but described as comprehensive) Manual Type Format: PDF Download Language Language: English 📖 Manual Coverage Systems Covered Engine: Detailed coverage including general information, specifications, engine operation, cooling system, fuel system. Drivetrain: Comprehensive coverage of power train, clutch, differential lock, main drive bevel gears and differential, rear axle, front axle, front system, front-wheel drive, and final drive. Transmission: Detailed information on the transmission system, including operation, repair, and specifications. Hydraulics: Extensive coverage of the hydraulic system, detailing its components, operation, and maintenance. Electrical: Coverage of the electrical system, likely including wiring diagrams, component testing, and troubleshooting. Brakes: Detailed information on the braking system, including operation, maintenance, and repair procedures, as well as park brake. Steering: Includes coverage of power steering system and general steering gear. Chassis Body: Includes sections on fenders, fuel tank & platform, indicating bodywork and ancillary components. Procedures Included Repair Procedures: Step-by-step instructions for complete disassembly and reassembly of machine components, guiding through service and repair procedures. Maintenance: Covers required standard maintenance, ensuring the vehicle works properly. Troubleshooting: Implied by the comprehensive nature and step-by-step instructions for repair and service, allowing for diagnosis of issues. Technical Depth Depth: Complete official full factory service repair manual, covering all styles and providing a high level of detail, including hundreds of photos and illustrations. 📊 Manual Specifications File Format Type: PDF Compatibility: All versions of Windows and Mac, smartphones, tablets. Accessible via web browser. Print Quality Printability: Yes, all pages are printable. Binding Type Binding: Digital (PDF) - No physical binding Paper Type Paper: Not applicable (digital format) Software Requirements Reader: Adobe PDF Reader Utility: Winzip (for potential file compression) ⚙️ Engine Specifications Primary Engine Engine Family: David Brown's own diesel engine designs (specific engine codes or displacements not provided in product info, but typically inline 4 or 6 cylinder for this era). Performance Horsepower: Not specified in product information. Varies by specific model (1390, 1394, 1490) and engine configuration. Torque: Not specified in product information. Varies by specific model (1390, 1394, 1490) and engine configuration. Fuel System Fuel Type: Diesel Injection System: Likely rotary or inline injection pump (details covered in manual). Cooling System Cooling Method: Water-cooled (details covered in manual). 🔧 Transmission Standard Transmission Type: Likely a synchronized gearbox with multiple forward and reverse gears. Options may include a dual-clutch or powershift transmission on some models/years (details in manual). Optional Powershift: Potential availability of powershift or torque amplifier features (details in manual). Features Gear Selection: Details on gear selection, lever operations, and clutch engagement are covered. 📐 Dimensions Weights Operating Weight: Not specified in product information. Typically in the range of 4,000-6,000 kg depending on configuration. Gross Vehicle Weight: Not specified in product information. Exterior Wheelbase: Not specified in product information. Length: Not specified in product information. Width: Not specified in product information. Height: Not specified in product information. 🛡️ Safety Features Ratings Rollover Protection: Likely available with ROPS (Roll-Over Protective Structure) or enclosed cab, details on installation and safety standards are usually in the manual. Active Features Braking System: Service brakes (likely hydraulic) and parking brake. Manual covers...