| Manufacturer | Valmet |
| Price | - |
| Model | 78 |
| Equipment Type | Row-Crop Tractors |
| Factory | Brazil |
VALMET 78 POWER
| PTO (claimed) | 65 hp/48.5 kW |
ENGINE DETAIL
The Valmet 78 tractor features a robust MWM D229 diesel engine with a 3.9 L displacement, delivering a torque of 191.6 lb-ft at 1400 RPM, which provides strong pulling power for agricultural tasks. Its oil bath air cleaner enhances engine longevity and efficiency, while the moderate oil and coolant capacities ensure adequate lubrication and temperature management during operation. The compact design and electric starting system are advantageous for easy handling, though maintenance of the oil bath system may require more attention compared to dry air filter alternatives.
| Description | MWM D229/diesel/4-cylinder/liquid-cooled |
| Displacement | 239.3 ci/3.9 L |
| Bore/Stroke | 4.01x4.72 inches/102 x 120 mm |
| Air cleaner | oil bath |
| Rated RPM | 2200 |
| Torque | 191.6 lb-ft/259.8 Nm |
| Torque RPM | 1400 |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 10 qts/9.5 L |
| Coolant capacity | 12.5 qts/11.8 L |
VALMET 78 ENGINE
The Valmet 78 is equipped with a robust MWM 3.9L 4-cylinder diesel engine, delivering reliable torque and power for various agricultural applications. Its compact design allows for maneuverability in tight spaces, making it suitable for diversified farming scenarios. However, potential challenges include limited power output for larger implements and compatibility with modern attachments.
| Description | MWM 3.9L 4-cyl diesel |
TRANSMISSION
The Valmet 78 tractor features a synchronized transmission with 6 forward and 2 reverse gears, enabling smooth shifting and efficient operation across varying terrains. One advantage of this gearing arrangement is enhanced control over speed and torque, crucial for tasks like tilling or hauling. However, the relatively limited gear range may present challenges in high-demand applications requiring precise speed modulation.
| Type | synchronized |
| Gears | 6 forward and 2 reverse |
SPEEDS
| Description | With 18.4-30 rear tires./ |
MECHANICAL
The Valmet 78 tractor features a 4x2 2WD chassis, which provides simplicity and lower maintenance costs but may limit traction in challenging terrain compared to 4WD models. Its mechanical rear differential lock enhances traction on slippery surfaces, while the synchronized 6-speed transmission enables smooth gear shifts, ideal for varied field operations. The mechanical dry disc brakes provide reliable stopping power, though operators should be mindful of wear and maintenance compared to hydraulic alternatives.
| Chassis | 4x2 2WD |
| Differential lock | mechanical rear |
| Steering | power |
| Brakes | mechanical dry disc |
| Cab | Four-post ROPS. |
| Transmission | 6-speed synchronized |
CAPACITY
| Fuel | 21.1 gal/79.9 L |
| Hydraulic system | 4.5 gal/17.0 L |
HYDRAULICS
| Type | open center |
| Capacity | 4.5 gal/17.0 L |
| Pressure | 2328 psi/160.5 bar |
| Pump flow | 6.7 gpm/25.4 lpm |
TRACTOR HITCH
| Rear Type | II |
| Control | position and draft control |
| Rear lift | 3307 lbs/1500 kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540 (1.375) |
| Engine RPM | 540@1720 |
VALMET 78 TIRES
The Valmet 78 tractor features standard agricultural tires with front dimensions of 7.50-16 and rear dimensions of 18.4-30, providing a balanced traction capability suitable for various field applications. The front tires enhance maneuverability while the larger rear tires optimize stability and load-carrying capacity, essential for heavy tillage or hauling tasks. A potential challenge could be limited performance on steep terrains, where narrower front tires may struggle for traction.
| Standard tires (ag) | Front: 7.50-16. Rear: 18.4-30 |
DIMENSIONS
| Wheelbase | 86.4 inches/219 cm |
| Length | 159.8 inches/405 cm |
| Width | 77.6 inches/197 cm |
| Height (ROPS) | 99.2 inches/251 cm |
| Weight | 6525 lbs/2959 kg |
| Clearance (drawbar) | 18.1 inches/45 cm |
| Front tread | 55.5 to 71.3 inches/140 to 181 cm |
| Rear tread | 59.5 to 82.3 inches/151 to 209 cm |
DIMENSIONS & TIRES
The Valmet 78 tractor, with a wheelbase of 86.4 inches, offers a balanced weight-to-power ratio (6525 lbs), enhancing stability during field operations. The front tire size (7.50-16) allows for nimble maneuverability, whereas the larger rear tires (18.4-30) provide excellent traction on varied terrain. This configuration is advantageous for tasks requiring strong pulling capacity, but may pose challenges in tighter spaces due to its overall length and weight.
| Wheelbase | 86.4 inches/219 cm |
| Weight | 6525 lbs/2959 kg |
| Front tire | 7.50-16 |
| Rear tire | 18.4-30 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 23 |
| Battery volts | 12 |
| Battery AH | 135 |