| Manufacturer | Ursus |
| Price | - |
| Model | 5312 |
| Equipment Type | Utility Tractors |
| Factory | Warsaw, Poland |
URSUS 5312 POWER
| Engine | 70hp / 52.2kW |
| PTO (claimed) | 60.4hp / 45.0kW |
ENGINE DETAIL
The Ursus 5312 tractor is equipped with a 3.9L diesel engine, producing 70hp at 2200 RPM, with peak torque of 192.5 lb-ft at 1400 RPM, which provides strong low-end performance ideal for heavy tillage and field work. The use of a direct injection fuel system enhances fuel efficiency and responsiveness, though the oil bath air cleaner may require regular maintenance to ensure optimal engine performance. With a decent coolant capacity of 15.9qts (or 17.5qts with heater), the tractor is designed for extended operation, but operators should be mindful of the compression ratio of 16:1, which may necessitate well-maintained fuel quality for reliable starts, especially under cold conditions.
| Description | Ursus 4390 diesel 4-cylinder liquid-cooled |
| Displacement | 235.9ci / 3.9L |
| Bore/Stroke | 3.87x5.00inches / 98x 127mm |
| Power | 70hp / 52.2kW |
| Fuel system | direct injection |
| Air cleaner | oil bath |
| Pre-heating | glow plugs |
| Compression | 16:1 |
| Rated RPM | 2200 |
| Torque | 192.5lb-ft / 261.0Nm |
| Torque RPM | 1400 |
| Starter | electric |
| Starter volts | 12 |
| Starter power | 4hp / 3.0kW |
| Oil capacity | 7.4qts / 7.0L |
| Coolant capacity | 15.9qts / 15.0L 17.5qts / 16.6L *Coolant capacity with cab heater |
URSUS 5312 ENGINE
The Ursus 5312 features a 3.9L 4-cylinder diesel engine, known for its robust torque characteristics, making it suitable for medium-duty agricultural tasks. Key advantages include fuel efficiency and lower emissions compared to older models, but potential challenges might arise with parts availability due to its age. This tractor is ideal for small to mid-sized farms requiring reliable performance for tillage, planting, and hauling tasks.
| Description | Ursus 3.9L 4-cyl diesel |
TRANSMISSIONS OVERVIEW
The Ursus 5312 tractor features an advanced transmission system, offering options for 8-speed, 16-speed, and dual-speed power shift which enhances operational efficiency and adaptability to varying load conditions. This versatility allows seamless gear changes for improved torque management, catering to a range of agricultural tasks from tillage to transport. However, the complexity of the transmission may pose maintenance challenges, requiring knowledgeable operators to fully exploit its capabilities.
| Description | 8-speed 16-speed two-speed power shift 12-speed |
TRANSMISSION 1
The Ursus 5312 tractor features an 8-speed forward and 2-speed reverse transmission, providing flexibility across various terrain conditions and tasks. The 305mm dry disc clutch ensures reliable engagement and disengagement during operation, while the oil capacity of 44.4 quarts helps maintain efficient lubrication for extended performance. However, users should consider the potential for wear in frequent shifting scenarios, which could affect the longevity of the clutch system.
| Gears | 8 forward and 2 reverse |
| Clutch | 305mm dry disc |
| Oil capacity | 44.4qts / 42.0L |
| Description | Four gears, plus reverse, in two ranges |
SPEEDS 1
| Description | With 16.9-34 rear tires |
TRANSMISSION 2
The Ursus 5312 tractor features a two-speed power shift transmission with a total of 16 forward and 8 reverse gears, allowing for enhanced operational flexibility and efficiency across varied field conditions. This transmission type delivers smoother gear transitions for improved performance during complex tasks and terrain changes. However, mastering the full range of gears may require operator training to optimize productivity and minimize wear on drivetrain components.
| Type | two-speed power shift |
| Gears | 16 forward and 8 reverse |
| Description | Four gears, plus reverse, in two ranges with two-speed power shift |
TRANSMISSION 3
The Ursus 5312 tractor features a 12-speed forward and 4-speed reverse transmission, providing a versatile range of gear ratios suitable for various agricultural applications. This gear configuration allows for efficient operation at different speeds, enhancing productivity in tasks such as plowing or transporting loads. However, the complexity of managing multiple gears may pose a challenge for inexperienced operators during machine handling.
| Gears | 12 forward and 4 reverse |
MECHANICAL
The Ursus 5312 tractor features a 4x2 two-wheel drive chassis that provides adequate traction for lighter agricultural tasks, but may struggle on uneven terrain without the assistance of a front drive axle. The mechanical rear differential lock enhances traction on slippery surfaces, while the wet disc brakes provide consistent stopping power, particularly beneficial when handling heavy loads. Notably, the 12-speed transmission option offers flexibility for various applications, allowing for optimized engine performance and fuel efficiency across diverse field conditions.
| Chassis | 4x2 2WD |
| Differential lock | mechanical rear |
| Steering | power |
| Brakes | mechanical wet disc |
| Cab | Two-post ROPS. Cab optional with available heater |
| Transmissions | 8-speed 16-speed two-speed power shift 12-speed |
CAPACITY
| Fuel | 21.1gal / 79.9L |
| Hydraulic system | 11.1gal / 42.0L |
| Steering | 1.3qts / 1.2L |
HYDRAULICS
| Capacity | 11.1gal / 42.0L |
| Pressure | 2321psi / 160.0bar |
| Pump flow | 6.9gpm / 26.1lpm |
| Steering cap. | 1.3qts / 1.2L |
TRACTOR HITCH
| Rear Type | II |
| Control | Position and draft control |
| Rear lift | 4850lbs / 2199kg 5732lbs / 2600kg *With optional lift ram |
POWER TAKE-OFF (PTO)
| Rear PTO | live |
| Rear RPM | 540/1000 (1.375) |
| Engine RPM | 540@1993 / 1000@2000 |
URSUS 5312 TIRES
The Ursus 5312 tractor features standard agricultural tires with a front size of 7.50-16 and a rear size of 16.9-34, providing optimal traction and stability for field operations. The larger rear tires enhance flotation and soil preservation during tillage, while the front tires assist in maneuverability, making it suitable for various crops and conditions. However, ensure tire pressure aligns with load requirements to maintain performance and prevent soil compaction.
| Standard tires (ag) | Front: 7.50-16. Rear: 16.9-34 |
DIMENSIONS
| Wheelbase | 87.4inches / 221cm |
| Length | 148.4inches / 376cm |
| Width | 79.1inches / 200cm |
| Height (cab) | 100inches / 254cm |
| Height (exhaust) | 103.5inches / 262cm |
| Clearance (rear axle) | 18.1inches / 45cm |
| Clearance (drawbar) | 13.4inches / 34cm |
| Front tread | 55.1/59.1/63/66.9/70.9inches / 139/150/160/169 / 180cm |
| Rear tread | 59.1 to 87.4inches / 150to 221cm |
URSUS 5312 WEIGHT
| ROPS | 5842lbs / 2649kg |
| Cab | 7011lbs / 3180kg |
| Ballasted | 8124lbs / 3685kg |
DIMENSIONS & TIRES
The Ursus 5312 tractor features a wheelbase of 87.4 inches, providing a solid foundation for stability during operation, especially in fieldwork scenarios. Weighing between 5842 to 7011 pounds, this tractor offers substantial traction, but its weight distribution may challenge maneuverability in tighter spaces. The combination of front tires (7.50-16) and rear tires (16.9-34) suggests an emphasis on versatility for various terrains, but it's essential to consider the potential need for tire pressure adjustments to optimize performance based on load and soil conditions.
| Wheelbase | 87.4inches / 221cm |
| Weight | 5842 to 7011 pounds |
| Front tire | 7.50-16 |
| Rear tire | 16.9-34 |
ELECTRICAL
| Charging system | alternator |
| ROPS Charging amps | 44 |
| Cab Charging amps | 55 |
| Charging volts | 12 |
| Battery volts | 12 |
| Battery AH | 120 |