| Manufacturer | Ursus |
| Price | - |
| Model | 3502 |
| Equipment Type | Orchard Vineyard Tractors |
| Factory | Warsaw, Poland |
URSUS 3502 POWER
| Engine | 46.4hp / 34.6kW |
| PTO (claimed) | 41.3hp / 30.8kW |
ENGINE DETAIL
The Ursus 3502 tractor, powered by a 2.5L diesel engine, delivers a rated power of 46.4 hp at 2250 RPM and generates a peak torque of 121.7 lb-ft at 1500 RPM, making it effective for heavy-duty applications such as plowing and hauling. Its direct injection fuel system and oil bath air cleaner contribute to improved combustion efficiency and engine longevity. However, the 16.5:1 compression ratio and reliance on glow plugs for pre-heating may pose challenges in very cold environments, necessitating careful handling and maintenance.
| Description | Ursus 3250 diesel 3-cylinder liquid-cooled |
| Displacement | 152.7ci / 2.5L |
| Bore/Stroke | 3.60x5.00inches / 91x 127mm |
| Power | 46.4hp / 34.6kW |
| Fuel system | direct injection |
| Air cleaner | oil bath |
| Pre-heating | glow plugs |
| Compression | 16.5:1 |
| Rated RPM | 2250 |
| Torque | 121.7lb-ft / 165.0Nm |
| Torque RPM | 1500 |
| Starter | electric |
| Starter volts | 12 |
| Starter power | 4hp / 3.0kW |
| Oil capacity | 7.2qts / 6.8L |
| Coolant capacity | 10.8qts / 10.2L |
URSUS 3502 ENGINE
The Ursus 3502 features a 2.5L three-cylinder diesel engine, which provides a balance of efficiency and adequate power for mid-range agricultural tasks. Advantages include compact size for maneuverability and lower fuel consumption, making it ideal for small to medium-sized farms. However, its limited horsepower might pose challenges in heavy-duty applications or for larger implements.
| Description | Ursus 2.5L 3-cyl diesel |
TRANSMISSIONS OVERVIEW
The Ursus 3502 tractor features an 8-speed transmission, complemented by a 12-speed creeper option, enhancing its versatility for various agricultural tasks. The creeper gear allows for slow-speed operations, making it ideal for precision work like plowing or planting in tight scenarios without sacrificing engine efficiency. However, while the 12-speed creeper adds operational flexibility, it may complicate maintenance due to the additional gear components.
| Description | 8-speed 12-speed creeper |
TRANSMISSION 1
The Ursus 3502 tractor features an 8-speed forward and 2-speed reverse transmission, providing versatility in field operations and enhancing mobility across various terrain types. Its 305mm dry disc clutch offers reliable engagement and disengagement but may require precise modulation to avoid wear in heavy usage scenarios. With an oil capacity of 44.4 quarts (42.0 liters), proper maintenance is crucial to ensure optimal engine performance and to prevent overheating during extended operations.
| 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 12.4-28 rear tires |
TRANSMISSION 2
The Ursus 3502 tractor features a creeper transmission, allowing for low-speed operation, which is advantageous for tasks requiring fine control, such as tilling or precision fieldwork. With 12 forward and 4 reverse gears, it offers versatility in various terrains and conditions, enabling optimal power delivery. However, operators may need to adjust to the gear engagement process, which could be less intuitive for those accustomed to standard transmissions.
| Type | creeper |
| Gears | 12 forward and 4 reverse |
MECHANICAL
The Ursus 3502 features a 4x2 2WD chassis, offering simplicity and reduced maintenance but limiting off-road capability compared to 4WD options. The mechanical rear differential lock enhances traction in challenging conditions, while the power steering provides improved maneuverability in tight spaces. Its 8-speed or 12-speed creeper transmission allows for precise speed control, making it suitable for tasks like tilling or planting in confined areas.
| Chassis | 4x2 2WD |
| Differential lock | mechanical rear |
| Steering | power |
| Brakes | mechanical drum |
| Cab | Two-post mid-mount folding ROPS |
| Transmissions | 8-speed 12-speed creeper |
CAPACITY
| Fuel | 15.3gal / 57.9L |
| 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 |
POWER TAKE-OFF (PTO)
| Rear PTO | live |
| Rear RPM | 540 (1.375) |
| Engine RPM | 540@1893 |
URSUS 3502 TIRES
The Ursus 3502 tractor is equipped with standard agricultural tires, providing a balance of flotation and traction, crucial for field operations. The front tire size of 6.00-16 offers maneuverability, while the larger rear tires (12.4-28) enhance stability and weight distribution, making it suitable for heavier loads and uneven terrain. However, tire selection should consider soil type and field conditions to optimize performance and prevent soil compaction.
| Standard tires (ag) | Front: 6.00-16. Rear: 12.4-28 |
DIMENSIONS
| Wheelbase | 82inches / 208cm |
| Length | 134.4inches / 341cm |
| Width | 50inches / 127cm |
| Height (steering wheel) | 56.1inches / 142cm |
| Height (ROPS) | 95.7inches / 243cm |
| Weight | 3990lbs / 1809kg |
| Ballasted weight | 4938lbs / 2239kg |
| Clearance (rear axle) | 10.5inches / 26cm |
| Clearance (drawbar) | 6.7inches / 17cm |
| Front tread | 40.9inches / 103cm |
| Rear tread | 38.8inches / 98cm |
DIMENSIONS & TIRES
The Ursus 3502 tractor features a compact wheelbase of 82 inches, optimizing maneuverability in tight agricultural spaces. With a weight of 3990 lbs, it provides adequate stability, but care should be taken on uneven terrain to prevent tipping. The tire specifications (6.00-16 front and 12.4-28 rear) suggest a focus on traction and soil compaction management, making it suitable for mid-sized farming tasks, though narrower front tires might limit flotation in softer ground.
| Wheelbase | 82inches / 208cm |
| Weight | 3990lbs / 1809kg |
| Front tire | 6.00-16 |
| Rear tire | 12.4-28 |
ELECTRICAL
| Charging system | alternator |
| Charging amps | 44 |
| Charging volts | 12 |
| Battery volts | 12 |
| Battery AH | 90 |