| Manufacturer | UTB/Universal |
| Price | - |
| Model | S640 |
| Equipment Type | Agricultural Crawler Tractors |
| Factory | Brasov, Romania |
ENGINE DETAIL
The UTB/Universal S640 tractor features a robust 4-cylinder diesel engine with a displacement of 3.6L and a compression ratio of 17:1, providing an output of 65hp at 2400 RPM and a peak torque of 163 lb-ft at 1400 RPM, ideal for demanding tasks like plowing or heavy lifting. The direct injection fuel system enhances fuel efficiency and combustion performance, but may introduce challenges in maintenance due to the complexity of components. With an electric starter rated at 4hp, this tractor is well-suited for reliable starting in various conditions, making it a versatile choice for both agricultural and industrial applications.
| Description | UTB diesel 4-cylinder liquid-cooled |
| Displacemen | 219.4ci / 3.6L |
| Bore/Strok | 4.02x4.33inches / 102x 110mm |
| Powe | 65hp / 48.5kW |
| Fuel syste | direct injection |
| Compressio | 17:1 |
| Rated RP | 2400 |
| Torqu | 163lb-ft / 221.0Nm |
| Torque RP | 1400 |
| Starte | electric |
| Starter volt | 12 |
| Starter powe | 4hp / 3.0kW |
UTB/UNIVERSAL S640 ENGINE
The UTB/Universal S640 tractor is powered by a robust 3.6L four-cylinder diesel engine, which offers a balance of power and efficiency suitable for diverse agricultural applications. With a fuel tank capacity of 14.3 gallons (54.1 liters), it is designed for extended operation between refueling, making it advantageous for longer tasks in the field; however, it may face challenges in fuel economy if under heavy load. Operators should consider the tractor's weight-to-power ratio when assessing its performance in various scenarios, such as tilling or hauling loads.
| Description | UTB 3.6L 4-cyl diesel |
| Fuel tan | 14.3gal / 54.1L |
TRANSMISSION
The UTB/Universal S640 tractor features a constant mesh gearbox with 6 forward and 2 reverse gears, providing seamless shifting and enhanced torque management for varied applications. Its 254mm dry disc clutch ensures reliable power transfer and durability under load, although it may be less forgiving in terms of engagement compared to hydraulic clutches. Ideal for heavy-duty tasks, users should consider the gear configuration for optimal field or transport operation depending on their specific farming or industrial needs.
| Typ | constant mesh |
| Gear | 6 forward and 2 reverse |
| Clutc | 254mm dry discs |
UTB/UNIVERSAL S640 TRANSMISSION
The UTB/Universal S640 tractor features a 6-speed constant mesh transmission, which allows for smoother gear changes and better power delivery under varying load conditions. This type of transmission minimizes gear wear and enhances durability, making it well-suited for agricultural tasks requiring frequent speed adjustments. However, users may face challenges in shifting smoothly at lower speeds, as constant mesh systems typically require more precise operation compared to syncromesh designs.
| Description | 6-speed constant mesh |
MECHANICAL
The UTB/Universal S640 tractor features a crawler drive system, which provides enhanced stability and traction on uneven terrains, making it ideal for agricultural and construction applications. The band brake system allows for effective deceleration and control, although it may require regular maintenance to ensure optimal performance. The open operator station promotes visibility and ease of access, but it may expose the operator to the elements, potentially affecting comfort during extended use.
| Driv | crawler |
| Description | Band brakes Open operator station |
HYDRAULICS
| Typ | open center |
| Pressur | 2475psi / 170.7bar |
| Pump flo | 5.8gpm / 22.0lpm |
TRACTOR HITCH
| Rear Typ | II/I |
| Rear lif | 2860lbs / 1297kg |
POWER TAKE-OFF (PTO)
| Rear RP | 540 |
| Engine RP | 540@1970 |
UTB/UNIVERSAL S640 TRACKS
| S640 widt | 12.2inches / 30cm |
| SM640 widt | 14.2inches / 36cm |
DIMENSIONS & TRACKS
| Wheelbas | 60.2inches / 152cm |
| Weigh | 6700lbs / 3039kg |
| Description | 12.2-inch tracks |
ELECTRICAL
| Charging syste | alternator |
| Battery volt | 12 |