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.
Market Segment:
Mid-range to heavy-duty agricultural tractors, competing with other Eastern European and global manufacturers of similar horsepower classes.
Manual Value Proposition:
Essential for accurate parts sourcing, cost-effective repairs, and maintaining the operational integrity of Ursus tractors.
Manual Coverage:
Comprehensive parts listing and identification for Ursus 902, 904, 1002, 1212, and 1604 tractor models.
Estimated Page Count:
Varies based on specific model and generation, typically 300-600 pages for a comprehensive parts catalog.
Manual Type:
Factory Parts Manual / Parts Catalog
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.
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.
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.
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.
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 Type:
Rotary or inline injection pumps, typically with mechanical governors.
Transmission Type Standard:
Manual, constant mesh gearbox with multiple forward and reverse gears (e.g., 16x8, 24x12 configurations).
Transmission Type Optional:
Some models may have offered synchronized gearboxes or creeper gears for specialized applications.
Gear Selection:
Typically utilizes a main gear lever and a range selector, potentially a Hi/Lo splitter or synchronizer levers.
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.
Operating Weight Approx:
Range from approximately 4,000 kg for the 902 to over 6,500 kg for the 1604, excluding ballast.
Rollover Protection:
ROPS (Roll-Over Protective Structure) typically an optional or factory-fitted feature, depending on the specific model year and market.
Braking System Type:
Internal expanding shoe brakes or disc brakes, usually oil-immersed for durability and improved performance.
Seatbelts:
Optional or standard depending on the generation and specific safety regulations adhered to during production.
Infotainment Features:
Basic operator controls, instrumentation (tachometer, oil pressure, coolant temperature, fuel gauge), and potentially a basic radio/work light system on later models.
Traction Control:
No advanced electronic driver assistance systems; relies on mechanical differentials and operator skill.
Connectivity Features:
N/A
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.
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.
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.
Manufacturer Origin:
Ursus S.A. is a historical Polish manufacturer of agricultural machinery, with roots tracing back to the early 20th century.
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 Period Typical:
These models, particularly variants, were produced throughout the late 20th century and into the early 21st century, with continuous updates and engine revisions.
Manufacturing Location:
Primarily manufactured in Poland.
