🏷️ Basic Information Identification Make: David Brown (Case IH) Models Covered: 850, 880, 990 Engine Type: 4 Cylinder Diesel Codes Manual Identifier: Operator's/Owner's Manual 👋 Introduction Market Position Historical Context: David Brown tractors were a significant player in the agricultural machinery market, known for their robust build and versatility. The 850, 880, and 990 series represented key models in their lineup during their production eras. Competitive Analysis Market Niche: These tractors competed with other established brands of their time, offering reliable power for general farming tasks, field cultivation, and material handling. Key Features Manual Value: Provides essential knowledge for owners to ensure safe and efficient operation, maintain the longevity of their tractor, and perform basic upkeep. Tractor Characteristics: Known for durable construction, straightforward mechanics, and reliable performance in agricultural settings. 📋 Manual Details Coverage Areas Primary Coverage: Operation, Usage, Maintenance Secondary Coverage: Routine Maintenance Page Count Estimated Page Count: Varies by specific model year and engine variant, but typically comprehensive for operator and basic maintenance. Manual Type Type: Owner's/Operator's Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine operation, cooling system, fuel system, lubrication system. Drivetrain: Transmission operation, clutch, differential, PTO (Power Take-Off) operation. Hydraulics: Hydraulic system operation, lift controls, external hydraulic connections (if applicable). Electrical: Basic electrical system components, lighting, battery maintenance. Operator Controls: Dashboard layout, instrument panel, steering, braking, throttle controls. Procedures Included Operation: Pre-operation checks, starting procedures, driving techniques, PTO engagement, hydraulic operation. Maintenance: Lubrication points and schedule, fluid level checks, filter replacement (oil, fuel, air), greasing points. Troubleshooting: Basic problem identification for common operational issues (e.g., engine won't start, hydraulic lift not functioning). Technical Depth Depth: Operator-focused, covering daily checks, routine maintenance, and safe operation. Detailed repair procedures are typically found in a separate Service Manual. 📊 Manual Specifications File Format Digital Format: PDF Print Quality Digital Quality: High-resolution, suitable for screen viewing and printing. Binding Type Binding Method: N/A (Digital Download) Paper Type Digital Medium: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Configuration: 4-Cylinder, Direct Injection Diesel Performance Horsepower Range: Varies by model and specific engine tune, typically in the 40-60 HP range. Torque Characteristics: Designed for strong low-end torque for pulling heavy loads. Fuel System Injection Type: Direct Injection Fuel Type: Diesel Fuel Cooling System Cooling Method: Water Cooled Lubrication System Oil Type: Typically SAE 30 or SAE 10W-30 Diesel Engine Oil, consult manual for specific API service ratings. 🔧 Transmission Standard Transmission Type: Manual Gearbox with various speeds (e.g., 8-speed or 10-speed options). Optional Optional Features: Some models may feature a 'TravoT' or similar torque amplifier for increased gear ratios. Features Clutch Type: Dry Single-Plate Clutch Gear Selection: High/Low range selection, potentially with synchronized gears depending on the specific model variant. 📐 Dimensions Exterior Wheelbase: Varies by model, but generally within the standard range for tractors of this era. Weights Operating Weight: Varies, but typically in the 3500-5000 lbs (1590-2270 kg) range. 🛡️ Safety Features Ratings Safety Standards: Adheres to safety practices of its production era. Modern safety standards for ROPS (Roll-Over Protective Structures) and PTO shielding are paramount for current operation. Active Features Braking System: Drum brakes, potentially with independent rear wheel braking. Passive Features Operator Station: Open operator station (ROPS may be an aftermarket addition or standard on later models). 💡 Technology Features Infotainment Infotainment System: N/A (Tractors of this era did not feature infotainment systems). Driver Assistance Driver Assistance Features: N/A (Tractors of this era did not feature advanced driver assistance systems). Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 100-250 operating hours, depending on operating conditions. Consult manual for specifics. Air Filter Service: Check frequently, clean or replace as needed, especially in dusty conditions. Fuel Filter Replacement: Typically at oil change intervals or as recommended to prevent fuel system contamination. Fluid Specifications Hydraulic Fluid: Refer to manual for specific hydraulic fluid type (e.g., UTF - Universal Tractor Transmission Fluid, or specific oil grades). Coolant: Ethylene glycol-based antifreeze/coolant mixture, typically 50/50 with distilled water. Known Issues Common Wear Items: Hydraulic pump seals, clutch wear, PTO clutch wear, potential for coolant leaks due to age of components. Electrical System: Older wiring harnesses can degrade; grounding issues can be common. General Advice Preventive Maintenance: Regular greasing of pivot points and moving parts is critical for longevity. 📚 Vehicle History Brand Heritage David Brown Legacy: David Brown Tractors Ltd. was a British manufacturer renowned for its quality and innovative designs before its eventual integration into the Case IH conglomerate. Model Evolution Series Development: The 850, 880, and 990 models represent a progression in power and features within David Brown's tractor lines, reflecting advancements in agricultural engineering throughout the mid to late 20th century. Production Production Period: These models were primarily produced from the late 1950s through the 1970s. 🏆 Awards &...