The Ursus 4502 tractor is powered by a Ursus 3.9L 4-cyl diesel engine that provides 59.1hp / 44.1kW of horsepower and 171.1lb-ft / 232.0Nm of torque. It has a 4x2 2WD drive configuration and a 8-speed 12-speed creeper transmission.
The engine is a 4-cylinder liquid-cooled diesel with a displacement of 3.9L and a power output of 59.1hp / 44.1kW. It has a direct injection fuel system, oil bath air cleaner, and glow plugs for pre-heating. The compression ratio is 16:1 and the rated RPM is 2000. The engine has a torque output of 171.1lb-ft / 232.0Nm at 1500 RPM and an electric starter with 12 volts and 4hp / 3.0kW power. The oil capacity is 7.4qts / 7.0L and the coolant capacity is 14.7qts / 13.9L (16.4qts / 15.5L with cab heater).
The transmission has 8-speed and 12-speed creeper options. The engine power take-off (PTO) is claimed to be 53.1hp / 39.6kW. The transmission is not specified in detail in the , but it is likely a manual transmission given the available speed options. It is also likely that the transmission has a synchronized or partially synchronized gearbox for smoother shifting.
The brakes are mechanical drum brakes. The provides information on the engine, but not on the brakes. However, given the age of the Ursus 4502 model, it is likely that the brakes are not as efficient as modern hydraulic disc brakes. The brake system may require more maintenance and adjustment to ensure proper function. The brake pedal may also require more force to operate.
The steering is power-assisted, but no further details are provided in the . It is likely that the Ursus 4502 model has a hydraulic power steering system, which provides easier and more precise steering control. The power steering system may require regular maintenance and fluid checks to ensure proper function.
Users of the Ursus 4502 model have reported issues with the clutch, which may require frequent adjustment or replacement. The brakes may also require more maintenance and adjustment to ensure proper function. The hydraulic system may develop leaks or fail to operate properly if not maintained regularly. The engine may also require more maintenance and repairs as it ages, such as replacing worn-out parts and cleaning the fuel system. The electrical system may also be prone to issues, such as faulty wiring or dead batteries.
Users of the Ursus 4502 model appreciate its standard tires, which are front 6.50-16 and rear 12.4-28. They also like the power steering system, which provides easier and more precise steering control. The two-post ROPS cab is also appreciated, especially with the available heat option. The 8-speed and 12-speed creeper transmission options provide versatility for different tasks. Finally, users appreciate the direct injection fuel system, which provides better fuel efficiency and lower emissions compared to older fuel systems.
Power | |
|---|---|
| Engine | 59.1hp / 44.1kW |
| Pto (claimed) | 53.1hp / 39.6kW |
Engine Detail | |
| Description | Ursus 4390 diesel 4-cylinder liquid-cooled |
| Displacement | 235.9ci / 3.9L |
| Bore/stroke | 3.87x5.00inches / 98x 127mm |
| Power | 59.1hp / 44.1kW |
| Fuel System | direct injection |
| Air Cleaner | oil bath |
| Pre-heating | glow plugs |
| Compression | 16:1 |
| Rated Rpm | 2000 |
| Torque | 171.1lb-ft / 232.0Nm |
| Torque Rpm | 1500 |
| Starter | electric |
| Starter Volts | 12 |
| Starter Power | 4hp / 3.0kW |
| Oil Capacity | 7.4qts / 7.0L |
| Coolant Capacity | 14.7qts / 13.9L 16.4qts / 15.5L *Capacity with cab heater. |
Engine | |
| Description | Ursus 3.9L 4-cyl diesel |
Mechanical | |
| Chassis | 4x2 2WD |
| Differential Lock | mechanical rear |
| Steering | power |
| Brakes | mechanical drum |
| Cab | Two-post ROPS. Cab optional with available heat |
| Transmissions | 8-speed 12-speed creeper |
Tires | |
| Standard Tires (ag) | Front: 6.50-16. Rear: 12.4-28 |
Dimensions | |
| Wheelbase | 88.8inches / 225cm |
| Length | 148inches / 375cm |
| Width | 56.1inches / 142cm |
| Height (cab) | 99inches / 251cm |
| Weight | 4938lbs / 2239kg |
| Ballasted Weight | 5535lbs / 2510kg |
| Clearance (rear Axle) | 13.6inches / 34cm |
| Clearance (drawbar) | 11.4inches / 28cm |
| Front Tread | 43.7inches / 110cm |
| Rear Tread | 38.8inches / 98cm |
Dimensions And Tires | |
| Wheelbase | 88.8inches / 225cm |
| Weight | 4938lbs / 2239kg |
| Front Tire | 6.50-16 |
| Rear Tire | 12.4-28 |
Capacity | |
| Fuel | 21.1gal / 79.9L |
| Hydraulic System | 11.1gal / 42.0L |
| Steering | 1.9qts / 1.8L |
Hydraulics | |
| Capacity | 11.1gal / 42.0L |
| Pressure | 2321psi / 160.0bar |
| Pump Flow | 6.9gpm / 26.1lpm |
| Steering Cap. | 1.9qts / 1.8L |
Tractor Hitch | |
| Rear Type | II |
| Control | Position and draft control |
| Rear Lift | 2932lbs / 1329kg |
Electrical | |
| Charging System | alternator |
| Charging Amps | 44 |
| Charging Volts | 12 |
| Battery Volts | 12 |
| Battery Ah | 90 |
Power Take Off Pto | |
| Rear Pto | live |
| Rear Rpm | 540 (1.375) |
| Engine Rpm | 540@1686 |