Market Niche:
Utility tractor, common in agricultural settings for small to medium farms. Known for robustness and simplicity.
Competitors:
Competed with other Eastern Bloc tractor manufacturers like Zetor, Belarus (MTZ), and some Western European models depending on export markets.
Design Philosophy:
Rugged, reliable, and relatively simple mechanical design emphasizing durability and ease of repair with basic tools.
Target User:
Farmers, agricultural workers, and tractor enthusiasts who require detailed technical information for maintenance and repair.
Systems Covered:
Engine, Fuel System, Cooling System, Lubrication System, Clutch, Transmission, Power Take-Off (PTO), Rear Axle, Hydraulic System, Steering System, Front Axle, Brakes, Electrical System, Chassis, Bodywork, Troubleshooting, Maintenance
Page Count:
Estimated 200-300 pages (based on typical workshop manual scope for this era/type of tractor)
Manual Type:
Workshop Service Manual / Repair Manual
Language:
Likely English (common for international repair documentation); may also exist in Polish or other Eastern European languages depending on origin.
Format:
Print (based on 'SCAN OF MANUAL' context suggesting physical document reproduction)
Engine Systems:
Detailed breakdown of the Ursus diesel engine, including cylinder head, block, pistons, crankshaft, camshaft, valve train, timing, lubrication, and cooling systems.
Fuel System:
Components like fuel injection pump, injectors, fuel filters, fuel lines, and troubleshooting related to fuel delivery and combustion.
Transmission And Drivetrain:
Covers clutch operation, gearbox (gear selection, lubrication, internal components), differential, final drives, and PTO engagement mechanisms.
Hydraulic System:
Details on the hydraulic pump, control valve, cylinders (e.g., for 3-point hitch), reservoir, and associated piping. Includes operation, maintenance, and troubleshooting.
Braking System:
Information on mechanical or hydraulic braking mechanisms, brake adjustments, and component replacement.
Electrical System:
Includes starter, alternator/generator, battery, lighting, and basic wiring diagrams, focusing on functionality for a simpler tractor.
Maintenance Procedures:
Scheduled maintenance tasks, lubrication points, fluid change intervals, filter replacement, and general upkeep.
Repair Procedures:
Step-by-step instructions for disassembling, inspecting, repairing, and reassembling major tractor components and systems.
Troubleshooting Guidance:
Diagnostic tables and procedures for identifying and resolving common operational issues and failures.
Depth:
Comprehensive; suitable for professional mechanics and experienced DIY users. Covers disassembly, inspection, repair, and overhaul of all major systems.
Diagnostic Capabilities:
Provides guidance on diagnosing mechanical and operational faults, including common causes and solutions.
File Format:
Physical Print
Print Quality:
Standard print quality for workshop manuals, with clear diagrams and text. May vary based on original scan quality.
Binding Type:
Likely comb-bound, spiral-bound, or saddle-stitched for ease of use in a workshop environment.
Paper Type:
Durable paper suitable for workshop use; may include glossy pages for diagrams.
Engine Manufacturer:
Likely Ursus or a licensed variant
Engine Model Code:
Likely a 4-cylinder diesel, specific model designation often found in manual (e.g., S-4001 or similar).
Horsepower:
Approximately 50-55 HP (gross)
Torque:
Specific torque figures would be detailed in the manual, typically in the range of 140-160 Nm.
Injection System:
Indirect Injection (IDI) or Direct Injection (DI) depending on exact sub-model; typically mechanical injection pump.
Transmission Type:
Manual Synchromesh
Gear Configuration:
Likely a gearbox with 8-16 forward gears and 4-8 reverse gears, offering a wide range of PTO and travel speeds.
Pto Options:
Standard PTO speeds (e.g., 540 RPM) and potentially a dual-speed PTO.
Gear Ratio Adjustment:
The manual would detail how to adjust or check gear selector linkages and potentially differential lock engagement.
Wheelbase:
Approx. 2150 mm (84.6 inches)
Length:
Approx. 3700 mm (145.7 inches)
Width:
Approx. 1750 mm (68.9 inches)
Height:
Approx. 2400 mm (94.5 inches) to top of steering wheel/exhaust
Operating Weight:
Approx. 2500-2800 kg (5511-6173 lbs)
Front Axle Load:
Specifications for front axle loading limits would be in the manual.
Rear Axle Load:
Specifications for rear axle loading limits would be in the manual.
Safety Features:
Basic safety features typical of its era: Roll Over Protection Structure (ROPS) mounting points, robust braking system, neutral lock.
Traction Control:
Rear differential lock (mechanical engagement) for improved traction in slippery conditions.
Operator Protection:
The manual would detail procedures for ensuring ROPS is properly installed and maintained if fitted.
Infotainment System:
Not applicable for this model; basic instrumentation typically includes oil pressure, coolant temperature, ammeter/voltmeter, and tachometer.
Driver Assistance Features:
None; focus is on mechanical controls and operator feedback.
Connectivity Options:
Not applicable.
Engine Oil Change:
Typically every 200-250 operating hours or annually; specific recommendations in manual.
Fuel Filter Replacement:
Recommended at every oil change or more frequently depending on fuel quality.
Air Filter Maintenance:
Regular cleaning and replacement based on operating conditions; detailed in manual.
Engine Oil Type:
API CD or CE classification, SAE 15W-40 or 10W-30 diesel engine oil. Specific viscosity and capacity detailed in manual.
Transmission Hydraulic Fluid:
Universal Tractor Transmission Oil (UTTO) or equivalent, meeting specific viscosity and performance standards for shared hydraulic/transmission oil baths. Capacity will be specified.
Coolant Type:
Ethylene glycol based antifreeze mixture with distilled water, typically a 50/50 mix.
Common Wear Points:
Clutch wear, PTO engagement issues, hydraulic lift sensitivity, and potential starter/alternator problems are common for tractors of this age.
Electrical Issues:
Simple electrical systems can develop corrosion on connections or wire fatigue over time.
Engine Reliability:
Generally robust diesel engines, but require regular maintenance to prevent issues like injector clogging or overheating.
Manufacturer Origin:
Ursus tractors are historically from Poland, associated with the state-owned Ursus factory in Warsaw.
Production Period:
The C-355 model was produced from the late 1960s through the 1970s.
Manufacturing Location:
Poland
Significance:
Part of a series of reliable and widely used agricultural tractors that formed the backbone of Polish and Eastern European agriculture for decades.
