🏷️ Basic Information Identification Make: David Brown Model: 850 Implematic, 850 Implematic Livedrive, 950 Implematic, 950 Implematic Livedrive Model Variant: Standard and Livedrive Transmission Codes 850 Implematic Serial Number Range: 2B/850/30 001 To 306 350 850 Implematic Livedrive Serial Number Range: 2A/850/30 001 To 306 350 950 Implematic Serial Number Range: W/950/63 001 To 81 850 950 Implematic Livedrive Serial Number Range: V/950/63 001 To 81 850 👋 Introduction Market Position Target User: Owners, mechanics, and technicians working on David Brown 850 and 950 Implematic tractors. Competitive Analysis Value Proposition: Provides essential, in-depth technical information to perform repairs and maintenance, saving on professional service costs and preserving vehicle condition. Key Features Instructional Style: Step-by-step instructions with detailed exploded diagrams for clarity and efficient repair. Accessibility: Instant download for immediate access on various digital devices (PC, Mac, tablet, smartphone). 📋 Manual Details Coverage Areas Primary Systems Covered: Implematic Hydraulic System Specific Components Covered: Control Valve Assembly, Hydraulic Pump Unit, Top Link & Control Cable, Ram Cylinder & Ramshaft, Automatic Hold Mechanism, Three-way Valve Unit Procedural Coverage: Operation, Fault Finding, Adjustments, Setting Instructions, Dimensional Data, Summary of Design Changes Page Count Estimated Page Count: Not Specified (Comprehensive detail implied) Manual Type Manual Type: Workshop Service & Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Hydraulic System Details: In-depth coverage of the David Brown Implematic hydraulic system, including its unique operational principles and components. Procedures Included Fault Diagnosis And Repair: Detailed procedures for identifying and rectifying faults within the Implematic hydraulic system. Adjustment And Setting: Step-by-step instructions for all necessary adjustments and settings of hydraulic components to ensure optimal performance. Technical Depth Diagnostic Capabilities: Advanced troubleshooting and diagnostic techniques specific to the Implematic system. Rebuild Procedures: Comprehensive guidance for the disassembly, inspection, repair, and reassembly of hydraulic pump, control valve, and ram assemblies. Component Understanding: Detailed explanations of the function and interaction of each component within the Implematic system, including the automatic hold mechanism. 📊 Manual Specifications File Format Digital File Type: PDF Print Quality Printability: High-quality, printable for hard copy reference. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Diesel (Specific engine details not provided in product info, but typically inline diesel for these models) Performance Horsepower Range: Typically in the 30-50 HP range for 850/950 models, exact figures depend on specific engine variant. Fuel System Fuel Type: Diesel 🔧 Transmission Standard Transmission Type: Implematic (Hydraulic power shift transmission) Optional Transmission Variant: Livedrive (indicating a specific variation of the Implematic system or a dual-clutch setup for PTO operation) Features Implematic System Function: A key feature of these tractors, providing variable speed control and hydraulic power management. 📐 Dimensions Exterior Wheelbase: Not specified in product info, but typical for tractors of this era. Weights Operating Weight: Not specified in product info, but generally around 3500-4500 lbs depending on configuration. 🛡️ Safety Features Ratings Safety Standards Adherence: Manual assists in maintaining safety through proper operation and repair of hydraulic systems, critical for tractor stability and control. 💡 Technology Features Infotainment Infotainment Systems: N/A (This is a tractor from the mid-20th century, no electronic infotainment systems). Driver Assistance Driver Assistance Features: N/A (Focus is on the hydraulic control system which acts as a form of implement assistance). Connectivity Connectivity Options: N/A 🔧 Maintenance Service Intervals Hydraulic Fluid Change: Specific intervals not provided, but regular checking and changing of hydraulic fluid is critical for Implematic system longevity. Typically recommended annually or after a set number of operating hours (e.g., 500-1000 hours). Fluid Specifications Hydraulic Fluid Type: The manual will specify the correct hydraulic oil type and viscosity (likely a premium tractor hydraulic fluid like UTF - Universal Tractor Transmission Oil, or a specific mineral oil as per original specifications). Hydraulic System Capacity: Capacity details for the Implematic hydraulic system will be provided in the manual. Known Issues Implematic Wear Points: Common wear areas include hydraulic pump seals, control valve spools, and ram cylinder seals. The manual addresses diagnosis and repair for these. Potential Failures: Leakage, loss of hydraulic pressure, inconsistent lift/lower operation, or control valve sticking can occur due to wear or contamination. The manual provides troubleshooting for these. 📚 Vehicle History Brand Heritage Manufacturer Origin: United Kingdom (David Brown Tractors Ltd.) Model Evolution Implematic Introduction: The Implematic system was a significant innovation in tractor hydraulics, offering advanced control for its time. Production Production Era: The 850 and 950 models were produced from the late 1950s into the 1960s, with refinements over their production life. 🏆 Awards & Recognition Recognitions Implematic Innovation: The Implematic system itself was a technologically advanced feature for its time, recognized for improving tractor usability and implement control.