| Manufacturer | Ursus |
| Price | - |
| Model | 5712 |
| Equipment Type | Utility Tractors |
| Factory | Warsaw, Poland |
URSUS 5712 POWER
| Engine | 79.8hp / 59.5kW |
| PTO (claimed) | 67.1hp / 50.0kW |
ENGINE DETAIL
The Ursus 5712 features a robust 4-cylinder diesel engine with a displacement of 4.1L, delivering a power output of 79.8 hp at a rated RPM of 2200, which is advantageous for medium-duty agricultural tasks. The torque of 210.2 lb-ft at 1400 RPM indicates strong low-end power, beneficial for plowing and towing operations. However, the compression ratio of 16:1 requires careful attention to fuel quality and maintenance to avoid potential pre-ignition issues.
| Description | Ursus 4410 diesel 4-cylinder liquid-cooled |
| Displacement | 248.4ci / 4.1L |
| Bore/Stroke | 3.98x5.00inches / 101x 127 mm |
| Power | 79.8hp / 59.5kW |
| Fuel system | direct injection |
| Air cleaner | dry |
| Pre-heating | glow plugs |
| Compression | 16:1 |
| Rated RPM | 2200 |
| Torque | 210.2 lb-ft /285.0 Nm |
| Torque RPM | 1400 |
| Starter | electric |
| Starter volts | 12 |
| Starter power | 4 hp /3.0 kW |
| Oil capacity | 8.8qts / 8.3L |
| Coolant capacity | 16.1qts / 15.2L |
URSUS 5712 ENGINE
The Ursus 5712 features a robust 4.1L 4-cylinder diesel engine, providing efficient power delivery and fuel economy, ideal for medium-duty agricultural tasks. Its compact size allows for maneuverability in tight spaces, though the engine's output may limit performance under heavy loads compared to higher-horsepower models. Overall, this tractor is best suited for operators seeking reliability in lighter fieldwork and utility applications.
| Description | Ursus 4.1L 4-cyl diesel |
TRANSMISSIONS OVERVIEW
The Ursus 5712 tractor, featuring an 8-speed or 12-speed transmission, provides versatile gear ratios that enhance operational efficiency across various terrains. The 12-speed option allows for finer speed adjustments, improving fuel economy and reducing engine stress during heavy-duty tasks. However, more gears can complicate shifting under load; careful operator training is essential to maximize performance and prevent premature wear.
| Description | 8-speed/12-speed |
TRANSMISSION 1
The Ursus 5712 tractor features a simple gear system with 8 forward and 2 reverse speeds, allowing for versatile field operations but may limit efficiency in high-demand tasks. Its 305mm dry disc clutch ensures reliable engagement under load, though it may require more frequent servicing compared to wet clutches. With an oil capacity of 44.4 quarts, it promotes extended service intervals, essential for maintaining optimal engine performance during prolonged agricultural use.
| 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
| Description | With 16.9R34 rear tires |
TRANSMISSION 2
The Ursus 5712 tractor features a 12-speed forward and 4-speed reverse transmission, providing versatility for varied agricultural tasks and terrain conditions. The wide gear range enhances efficiency in both high-speed travel and low-speed control for operations like tilling or hauling. Challenges may include a steeper learning curve for operators unfamiliar with multi-gear systems, but the increased operational flexibility compensates for this, particularly in diverse farming scenarios.
| Gears | 12 forward and 4 reverse |
MECHANICAL
The Ursus 5712's 4x2 2WD configuration provides adequate power for light to moderate agricultural tasks but may limit traction in challenging terrain compared to 4WD models. Its mechanical rear differential lock enhances traction in slippery conditions, while the power steering system optimizes maneuverability. The availability of an optional heated cab is beneficial for operators in cold climates, although the mechanical wet disc brakes may require more maintenance than hydraulic alternatives.
| 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/12-speed |
CAPACITY
| Fuel | 21.1gal / 79.9L |
| Hydraulic system | 11.1gal / 42.0L |
| Steering | 2.4qts / 2.3L |
HYDRAULICS
| Capacity | 11.1gal / 42.0L |
| Pressure | 2321psi / 160.0bar |
| Pump flow | 6.9gpm / 26.1lpm |
| Steering cap. | 2.4qts / 2.3L |
TRACTOR HITCH
| Rear Type | II |
| Control | Position and draft control |
| Rear lift | 6173lbs / 2800kg/7055lbs / 3200kg *With optional second lift ram. |
POWER TAKE-OFF (PTO)
| Rear PTO | live |
| Rear RPM | 540/1000 (1.375) |
| Engine RPM | 540@1992 / 1000@2000 |
URSUS 5712 TIRES
The Ursus 5712, equipped with standard agricultural tires (7.50-20 front and 16.9R34 rear), offers robust traction and stability, ideal for diverse field operations. However, the larger rear tires may require careful management on narrower plots to avoid soil compaction. This configuration is particularly advantageous for plowing and tilling, ensuring effective weight distribution and improved performance in various soil conditions.
| Standard tires (ag) | Front: 7.50-20. Rear: 16.9R34 |
DIMENSIONS
| Wheelbase | 88.8inches / 225cm |
| Length | 148.6inches / 377cm |
| Width | 79.1inches / 200cm |
| Height (cab) | 100.4inches / 255cm |
| 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 221 cm |
URSUS 5712 WEIGHT
| ROPS | 6393lbs / 2899kg |
| Cab | 7231lbs / 3279kg |
| Ballasted | 8311lbs / 3769kg |
DIMENSIONS & TIRES
The Ursus 5712 tractor features a wheelbase of 88.8 inches (225 cm), which contributes to its stability and maneuverability in various agricultural tasks. With a weight range of 6393 to 7231 pounds, it provides substantial traction, although heavier configurations may reduce agility in tight spaces. The specified tire sizes (7.50-20 front and 16.9R34 rear) enhance load-carrying capacity while ensuring effective weight distribution across different terrains, making it suitable for plowing and tilling operations.
| Wheelbase | 88.8inches / 225cm |
| Weight | 6393 to 7231 pounds |
| Front tire | 7.50-20 |
| Rear tire | 16.9R34 |
ELECTRICAL
| Charging system | alternator |
| Charging amps | 44/55 |
| Charging volts | 12 |
| Battery volts | 12 |
| Battery AH | 120 |