🏷️ Basic Information Identification Make: Case David Brown Model: 990 Tractor 👋 Introduction Market Position Target Audience: Independent service professionals, farm owners with mechanical aptitude, and owners seeking to better understand their tractor's maintenance and repair. Competitive Analysis Value Proposition: Provides dealership-level service and repair information at a fraction of the cost of dealership services, empowering owners to perform their own maintenance and repairs. Key Features Content Highlights: Step-by-step instructions, diagrams, illustrations, wiring schematics, and technical specifications for comprehensive repair and troubleshooting. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Troubleshooting, Maintenance Page Count Estimated Page Count: N/A (Digital Format - Varies with PDF Reader) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, cooling system, fuel system (diesel and gasoline carburetor), ignition system, lubrication system Drivetrain Systems: Clutch (single disc, dual disc), transmission, differential, final drive, rear axle, front axle Hydraulic Systems: Hydraulic lift system, power steering Electrical Systems: Electrical system, wiring schematics, ignition system Braking Systems: Brake system Other Systems: Belt pulley, power take-off (PTO), steering gear (manual) Procedures Included Repair Procedures: Step-by-step repair instructions for all covered systems, detailed diagnostics and troubleshooting guidance Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, lubrication points Technical Depth Depth Of Information: Comprehensive coverage for mechanics and knowledgeable owners, including detailed diagrams, illustrations, and specifications for diagnostics and repair. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable pages Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Direct injection diesel engine (specific variants may exist, covered in manual) Performance Horsepower Range: Typically around 52-55 PTO horsepower, but specific engine variants will be detailed in the manual. Fuel System Fuel Delivery: Diesel fuel injection system (specific pump and injector details covered), Gasoline carburetor for gasoline variants 🔧 Transmission Standard Transmission Type: Manual gearbox with multiple forward and reverse gears (specific configurations covered) Optional Transmission Options: N/A (Manual likely standard, but specific options may be detailed) Features Gear Selection: Multiple gear ratios and potentially a high/low range selector for versatile operation. 📐 Dimensions Exterior Wheelbase: Varies by specific 990 model variant, detailed in manual. Weights Operating Weight: Approximately 4,500 - 5,500 lbs (2040 - 2500 kg), specific weights will be in the manual. 💡 Technology Features Infotainment Infotainment System: N/A (Focus is on functional operation, not entertainment) Driver Assistance Driver Assistance Features: N/A (Basic mechanical operation) 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 100-250 hours, exact interval specified in manual based on operating conditions. Fluid Specifications Engine Oil Type: API CD or CE classification, SAE 15W-30 or 20W-40. Specific recommendations in manual. Hydraulic Fluid Type: Universal Tractor Transmission Oil (UTTO) or equivalent. Specific viscosity grades and Case IH part numbers detailed in manual. Transmission Fluid Type: Likely UTTO or similar. Manual will specify correct type and capacity. Known Issues Common Wear Items: Clutch wear, hydraulic pump issues, diesel injection pump maintenance, front axle kingpins, brake lining wear. 📚 Vehicle History Brand Heritage Manufacturer Origin: United Kingdom (David Brown Tractors, later part of Case IH). Model Evolution Production Period: Produced from the late 1950s through the 1960s and into the 1970s, with variations. Production Manufacturing Focus: Designed as a versatile medium-horsepower agricultural tractor for various farming operations. 🏆 Awards & Recognition Recognitions Industry Recognition: N/A (The manual's value is in its technical utility, not external awards).