This manual provides comprehensive service and repair information for the 850, 880, 950, and 990 Series Implematic tractors. Produced primarily during the late 1950s through the 1960s, these British-manufactured tractors are known for their robust engineering and reliability in agricultural applications. Key features include the integrated Implematic hydraulic draft control and linkage system, along with powerful diesel engines. This documentation is essential for maintaining the operational integrity and longevity of these classic machines, enabling owners and technicians to perform all necessary maintenance and repairs effectively. This complete workshop service repair manual covers all aspects of the Implematic series, from routine maintenance and adjustments to complete engine and transmission rebuilds. It details procedures for every major system, including the engine, fuel, cooling, lubrication, electrical, clutch, transmission, hydraulics, steering, braking, and chassis. The manual includes step-by-step instructions, diagnostic procedures, troubleshooting guides, and essential technical specifications such as torque settings and fluid recommendations. Its purpose is to empower owners and mechanics with the knowledge required for accurate diagnostics, efficient repairs, and proper upkeep, ensuring these agricultural workhorses remain in optimal working condition. 🏷️ Basic Information Identification Make: David Brown Model: 850, 880, 950, 990 Series Implematic Product Type: Complete Workshop Service Repair Manual 👋 Introduction Market Position Market Position: Essential documentation for owners and mechanics of David Brown 850, 880, 950, and 990 Series Implematic tractors, enabling cost-effective self-maintenance and repair. Competitive Analysis Competitive Analysis: This manual provides the crucial technical details that allow users to bypass the need for expensive dealer servicing, making it a highly valuable resource for maintaining these classic agricultural machines. Key Features Key Features: Comprehensive coverage, step-by-step instructions, clear diagrams and pictures, instant delivery, multi-device compatibility, printable format, lifetime ownership. 📋 Manual Details Coverage Coverage Areas: All service and repair procedures A-Z, all models, engines, trim, and transmission types. Page Count Page Count: Not explicitly stated, but described as 'complete' and 'covers all repair procedures A-Z'. Manual Type Manual Type: Workshop Service Repair Manual Language Language: English (assumed based on description language) Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems Covered: Engine, Fuel System, Cooling System, Lubrication System, Electrical System, Ignition System, Clutch, Transmission (Gearbox), Final Drive, Rear Axle, Power Take-Off (PTO), Hydraulic System (including Implematic linkage), Steering System, Braking System, Front Axle, Chassis, Bodywork, Controls, Instrumentation, Troubleshooting. Procedures Included Procedures Included: Step-by-step instructions for all servicing and repair jobs, diagnostics, adjustments, overhauls, rebuilds, component replacement, and scheduled maintenance. Technical Depth Technical Depth: Comprehensive, from basic maintenance and adjustments to complete engine and transmission rebuilds, hydraulic system diagnostics and repair, and electrical system troubleshooting. Diagnostics Diagnostic Procedures: Includes procedures for diagnosing common mechanical, hydraulic, and electrical faults, often with flowcharts or symptom-based troubleshooting. Rebuilds Engine Rebuild Details: Detailed instructions for engine disassembly, component inspection (e.g., cylinder bore, crankshaft journals), fitting new parts, and reassembly, including bearing clearances and ring end gap specifications. Transmission Rebuild Details: Comprehensive guide for gearbox disassembly, inspection of gears, shafts, bearings, and synchromesh components, along with assembly procedures and lubrication points. Hydraulic System Hydraulic System Coverage: In-depth coverage of the Implematic hydraulic pump, control valve, lift arms, draft control system, and associated pipework and seals. Electrical System Electrical System Diagrams: Includes wiring diagrams for lighting, starting, charging, and instrumentation systems, with component identification. Torque Specifications Torque Settings Engine: Specific torque values for critical engine fasteners such as cylinder head bolts, connecting rod bolts, main bearing caps, and flywheel nuts. Torque Settings Transmission: Torque specifications for transmission case bolts, differential housing, and other drivetrain components. Parts Identification Parts Identification Details: While not a parts catalog, the manual will identify key components and their functions, aiding in parts ordering. Technical Data Tables Technical Data Tables: Likely includes tables for engine specifications, fluid capacities, bearing clearances, and other essential technical data. Schematics Schematics Included: Flow diagrams for hydraulic systems and electrical schematics are standard in such manuals. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High Quality, supports printing of individual pages, chapters, or the entire manual. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Software Requirements Software Requirements: Adobe Reader (or compatible PDF reader) ⚙️ Engine Specifications Primary Engine Engine Type: David Brown diesel engines (typically AD4/45, AD4/55, AD4/65 variations across models). Performance Horsepower Range: Varies by specific model and engine variant (e.g., 850 series typically 35-45 HP, 950/990 series 45-65 HP). Torque Specifications: Detailed torque settings for critical engine components (e.g., cylinder head bolts, main bearing caps) will be found within the manual. Fuel System Fuel System Type: Direct injection diesel, typically utilizing Simms or CAV fuel injection pumps. Lubrication System Oil Capacity Approx: Capacity details and oil type specifications (e.g., API CD or equivalent) will be provided for each engine variant. Cooling System Cooling System Type: Water-cooled, pressurized system with a thermostat....