🏷️ Basic Information Identification Make: Ursus Model: 902, 904, 1002, 1212, 1604 Vehicle Type: Agricultural Tractor Codes Manufacturer Code: URS 👋 Introduction Market Position Brand Origin: Ursus tractors are historically significant Polish agricultural machinery, known for their robustness and utility in various farming applications. Target Audience: Owners, operators, and mechanics of Ursus 902, 904, 1002, 1212, and 1604 tractors seeking accurate parts identification for maintenance and repair. Competitive Analysis Market Segment: Mid-range to heavy-duty agricultural tractors, competing with other Eastern European and global manufacturers of similar horsepower classes. Key Features Manual Value Proposition: Essential for accurate parts sourcing, cost-effective repairs, and maintaining the operational integrity of Ursus tractors. 📋 Manual Details Coverage Areas Manual Coverage: Comprehensive parts listing and identification for Ursus 902, 904, 1002, 1212, and 1604 tractor models. Page Count Estimated Page Count: Varies based on specific model and generation, typically 300-600 pages for a comprehensive parts catalog. Manual Type Manual Type: Factory Parts Manual / Parts Catalog Language Language: Polish Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Engine components, fuel system, lubrication system, cooling system, exhaust system. Drivetrain Systems: Clutch, gearbox (transmission), differential, final drives, PTO (Power Take-Off) components, front axle, rear axle. Hydraulic Systems: Hydraulic pump, hydraulic cylinders, control valves, hydraulic reservoir, linkage components, hydraulic filters. Braking Systems: Brake components (drum, disc as applicable), brake linkages, parking brake. Electrical Systems: Wiring diagrams, starter motor, alternator, battery, lighting, control switches, instrumentation. Steering Systems: Steering column, steering gearbox, tie rods, steering linkages. Chassis And Body: Frame, chassis components, fenders, operator platform/cab, mounting hardware, hitches. Operator Controls: Levers, pedals, steering wheel, dashboard controls. Procedures Included Part Identification: Detailed exploded diagrams of all major assemblies and sub-assemblies with corresponding part numbers and descriptions. Troubleshooting: While primarily a parts catalog, the detailed diagrams can aid in identifying faulty or worn components during troubleshooting. Repair Guidance: Facilitates correct part selection for repairs and replacements. Assembly Disassembly: Provides visual reference for the correct order and configuration of parts during assembly and disassembly processes. Technical Depth Depth Of Coverage: Comprehensive OEM (Original Equipment Manufacturer) level detail for all replaceable parts and assemblies. Diagrams Quality: High-quality exploded view diagrams, crucial for accurate part identification and assembly. Part Numbering System: Detailed breakdown of Ursus part numbering system for all listed components. 📊 Manual Specifications File Format File Format: PDF Searchability: Likely text-searchable if the PDF was created from a digital source or properly scanned and OCR'd. Print Quality Printability: Printable for on-site use, allowing for physical reference in the workshop. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Manufacturer Typical: Ursus often utilized their own diesel engines or licensed designs from manufacturers like Perkins or Zetor depending on the specific model and production era. Engine Type Common: Naturally aspirated, direct injection, four-stroke diesel engines. Performance Engine Displacement Range: Varies significantly across models, from approx. 4.5L for smaller variants (e.g., 902) to 6.5L+ for larger models (e.g., 1604). Horsepower Range: Approx. 90 HP (902) to 160 HP (1604), with intermediate models (904, 1002, 1212) falling within this range. Fuel System Fuel System Type: Rotary or inline injection pumps, typically with mechanical governors. 🔧 Transmission Standard Transmission Type Standard: Manual, constant mesh gearbox with multiple forward and reverse gears (e.g., 16x8, 24x12 configurations). Optional Transmission Type Optional: Some models may have offered synchronized gearboxes or creeper gears for specialized applications. Features Gear Selection: Typically utilizes a main gear lever and a range selector, potentially a Hi/Lo splitter or synchronizer levers. 📐 Dimensions Exterior Wheelbase: Varies by model, generally longer wheelbases for higher horsepower variants to improve stability. Track Width Front Rear: Adjustable track widths common for different row crop or cultivation needs. Weights Operating Weight Approx: Range from approximately 4,000 kg for the 902 to over 6,500 kg for the 1604, excluding ballast. 🛡️ Safety Features Ratings Rollover Protection: ROPS (Roll-Over Protective Structure) typically an optional or factory-fitted feature, depending on the specific model year and market. Active Features Braking System Type: Internal expanding shoe brakes or disc brakes, usually oil-immersed for durability and improved performance. Passive Features Seatbelts: Optional or standard depending on the generation and specific safety regulations adhered to during production. 💡 Technology Features Infotainment Infotainment Features: Basic operator controls, instrumentation (tachometer, oil pressure, coolant temperature, fuel gauge), and potentially a basic radio/work light system on later models. Driver Assistance Traction Control: No advanced electronic driver assistance systems; relies on mechanical differentials and operator skill. Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Engine Oil Change Interval: Typically every 250-500 operating hours, depending on operating conditions and specific engine type. Transmission Oil Change Interval: Generally every 1000-1500 operating hours. Hydraulic Oil Change Interval: Typically every 500-1000 operating hours, or as indicated by filter condition. Fluid Specifications Engine Oil Type Common: API CF or higher, SAE 15W-40 or 30 viscosity grade, depending on ambient temperature. Transmission Hydraulic Fluid Type: UTTO (Universal Tractor Transmission Oil) or equivalent, often with specific viscosity grades like 80W-90 for gearbox and ISO VG 46 for hydraulics, if separate systems. Coolant Type: Ethylene glycol-based antifreeze with corrosion inhibitors, typically a 50/50 mix with distilled water. Known Issues Wear And Tear Components: Clutch plates, brake linings, hydraulic pump seals, and PTO components are common wear items due to heavy usage. Electrical Connections: Corrosion and wear on electrical connections and wiring can lead to intermittent issues, especially in older units. Hydraulic System Performance: Over time, hydraulic system efficiency can decrease due to worn pumps, cylinders, or leaks. 📚 Vehicle History Brand Heritage Manufacturer Origin: Ursus S.A. is a historical Polish manufacturer of agricultural machinery, with roots tracing back to the early 20th century. Model Evolution Model Introduction: The models listed (902, 904, 1002, 1212, 1604) represent a lineage of Ursus tractors developed and produced over several decades, often evolving from earlier designs with updated engines and features. Production Production Period Typical: These models, particularly variants, were produced throughout the late 20th century and into the early 21st century,...