🏷️ Basic Information Identification Make: David Brown Model: 990 Tractor 👋 Introduction Market Position Product Type: Workshop Service Manual for Repair Key Features Comprehensiveness: Most detailed, comprehensive step-by-step procedures, explanations, and pictorial diagrams from bumper to bumper. Ease Of Use: Specially prepared for simple explanation, enabling even comparatively new personnel to provide satisfactory after-services. Diagnostic Information: Includes diagnostic information, troubleshooting, service data, precautions, and allowable limits. 📋 Manual Details Coverage Page Count: 93 pages Paragraph Count: 266 paragraphs Format File Format: PDF Language Language: English Print Capability Printable: Yes Delivery Method Delivery: Instant Download Coverage Areas General Coverage: Provides data, characteristics, instructions, and methodology for repair interventions on the vehicle and its components. Manual Type Type: Workshop Service Manual for Repair 📖 Manual Coverage Systems Covered Engine: Comprehensive coverage of engine disassembly, assembly, diagnosis, testing, and adjustments. Transmission: Detailed procedures for transmission removal, installation, overhaul, and adjustment. Hydraulics: Includes information on hydraulic system components, testing, adjustment, and repair. Electrical System: Covers wiring diagrams, component testing, and troubleshooting of the electrical system. Braking System: Procedures for brake inspection, adjustment, repair, and component replacement. Steering System: Detailed instructions for steering system diagnosis, repair, and adjustment. Front Axle And Steering: Covers front axle components, kingpins, and steering linkage adjustments. Rear Axle And Transmission: Includes rear axle assembly, differential, and drive shafts. Power Take Off Pto: Service and repair procedures for the PTO system. Chassis And Bodywork: Guidance on chassis components, sheet metal, and general body repairs. Fuel Injection System: Likely includes detailed troubleshooting and adjustment procedures for the fuel injection pump and injectors. Cooling System: Procedures for radiator, thermostat, and water pump service and maintenance. Exhaust System: Information on exhaust manifold, muffler, and pipe inspection and replacement. Wheels And Tires: Likely includes specifications for wheel alignment and tire inflation pressures. Procedures Included Maintenance: Routine maintenance procedures, service intervals, and lubrication points. Troubleshooting: Systematic approach to diagnosing and resolving common operational issues. Disassembly And Assembly: Step-by-step instructions for dismantling and reassembling all major components. Adjustments: Detailed guidance on critical adjustments for optimal performance and longevity. Rebuilds Overhauls: Comprehensive procedures for complete engine, transmission, and other major component rebuilds. Component Testing: Methods for testing the functionality and performance of various tractor components. Special Tool Usage: References to and illustrations of required special service tools for specific operations. Checking Adjusting: Covers checking and adjusting procedures for all major systems and components. Removal Installation: Detailed step-by-step procedures for removal and installation of vehicle components. Lubrication Points: Detailed diagrams and descriptions of all lubrication points. Assembly Details: Provides useful assembly details for efficient repair work. Technical Depth Depth: Detailed, comprehensive, step-by-step procedures with pictorial diagrams and explanations. Diagram Type: Exploded diagrams, sectional drawings, and photos are included. Specifications Lists: Includes servicing specification lists with factory specifications and allowable limits. Construction Function: Information on the construction and function of components is provided to aid understanding before servicing. Wear Limits: Includes reference to wear limits for David Brown 990 Tractor components. Pictorial Diagrams: Illustrations are used to highlight fundamental principles and procedures. Audience Intended Users: Mechanics and DIY individuals seeking to repair or adjust their David Brown 990 Tractor. 📊 Manual Specifications File Quality Image Quality: High-quality printable pages with detailed illustrations, exploded diagrams, drawings, and photos. Searchability Text Searchability: Implied by PDF format and extensive paragraph structure, though not explicitly stated as searchable text. Compatibility Operating Systems: Windows, Mac, and Linux OS compatible via Adobe Reader. Software Requirement Reader: Adobe Reader ⚙️ Engine Specifications Primary Engine Engine Type: Diesel (assumed based on tractor model and era, manual specifics would confirm) Performance Torque Values: Includes specific tightening torque values for assembly and installation procedures. Engine Performance Checks: Procedures for checking engine performance and diagnosing power loss. Fuel System Fuel System Coverage: Likely includes fuel injection system diagnosis, testing, and adjustments. 🔧 Transmission Standard Transmission Type: Manual Gearbox (assumed, common for this era and model) Features Gear Ratios: Specific data for gear ratios would be present within the manual's detailed sections. 📐 Dimensions Weights Weight Specifications: The manual likely contains weight specifications for major components and the tractor itself for safe handling and repair. 🛡️ Safety Features Precautions Safety Remarks: Includes DANGER, CAUTION, or NOTE remarks for hazardous operations and special safety measures. Tool Usage Tool Recommendation: Emphasis on using correct special service tools to avoid adverse effects on safe operation. 💡 Technology Features Infotainment Infotainment Coverage: Not applicable for this type of agricultural machinery. Driver Assistance Driver Assistance Coverage: Not applicable for this type of agricultural machinery. 🔧 Maintenance Service Intervals Maintenance Schedule: Includes reference to periodic maintenance charts for maximizing tractor life. Fluid Specifications Lubricant Recommendations: Specifies approved lubricants for various components. Known Issues Troubleshooting Guidance: Provides guidance on investigating unusual noises and changes in riding characteristics, rectifying problems promptly. Part Replacement Fastener Replacement: Advises using the same type...