The Valmet 78 tractor is powered by a MWM 3.9L 4-cyl diesel engine that provides of horsepower and 191.6 lb-ft/259.8 Nm torque. It has a 4x2 2WD drive configuration and a synchronized transmission.

Engine

The engine is not specified in the data provided. However, based on the model name, Valmet 78, it is likely that the engine is a diesel engine with a 4-cylinder configuration. The engine is liquid-cooled and has an oil bath air cleaner. It has a displacement of 239.3 cubic inches or 3.9 liters, with a bore/stroke ratio of 4.01x4.72 inches or 102 x 120 mm. The engine is rated at 2200 RPM and produces a torque of 191.6 lb-ft or 259.8 Nm at 1400 RPM.


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Transmission

The transmission of the Valmet 78 tractor is a 6-speed synchronized gearbox with 2 reverse gears. The PTO (claimed) power output of the transmission is 65 horsepower or 48.5 kW. The transmission is designed to provide smooth and efficient power transfer to the wheels, allowing the tractor to operate at different speeds and under varying load conditions. The synchronized gears ensure that the tractor can be shifted smoothly and without grinding, while the reverse gears allow for easy maneuvering in tight spaces.

Brakes

The brakes of the Valmet 78 tractor are mechanical dry disc brakes. The brakes are designed to provide reliable and consistent stopping power, even under heavy loads or in wet conditions. The brake system is easy to maintain and repair, with readily available replacement parts. The engine brake is also available to provide additional stopping power when needed. The tractor is equipped with a mechanical rear differential lock, which helps to improve traction and prevent wheel slippage in difficult terrain.



Steering

The steering system of the Valmet 78 tractor is power-assisted, making it easy to maneuver and control. The steering system is designed to provide precise and responsive handling, allowing the operator to make quick and accurate turns. The steering system is also easy to maintain and repair, with readily available replacement parts. The tractor is equipped with a MWM 3.9L 4-cylinder diesel engine, which provides ample power and torque to the steering system.


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Common Problems

Users of the Valmet 78 tractor have reported some common problems with the chassis, differential lock, steering, brakes, cab, and transmission. The chassis has been known to develop cracks and other structural issues over time, which can lead to reduced stability and safety concerns. The differential lock can also be prone to failure, which can result in reduced traction and difficulty operating the tractor in difficult terrain. The power steering system can develop leaks and other issues, which can make it difficult to control the tractor. The mechanical dry disc brakes can also wear out quickly and require frequent replacement. The cab can be cramped and uncomfortable for taller operators, and the 6-speed synchronized transmission can be difficult to shift smoothly.

What Users Like

Users of the Valmet 78 tractor appreciate the standard tires (ag) that come with the tractor, which provide good traction and stability in a variety of conditions. The tractor is also known for its reliable and efficient performance, with a powerful diesel engine and smooth transmission. The tractor is easy to maintain and repair, with readily available replacement parts. The power-assisted steering system is also a popular feature, making it easy to maneuver and control the tractor. Overall, users appreciate the versatility and durability of the Valmet 78 tractor, which can handle a variety of tasks and operate in different environments.

Valmet 78 Technical Specifications

Power

Pto (claimed)65 hp/48.5 kW

Engine Detail

DescriptionMWM D229/diesel/4-cylinder/liquid-cooled
Displacement239.3 ci/3.9 L
Bore/stroke4.01x4.72 inches/102 x 120 mm
Air Cleaneroil bath
Rated Rpm2200
Torque191.6 lb-ft/259.8 Nm
Torque Rpm1400
Starterelectric
Starter Volts12
Oil Capacity10 qts/9.5 L
Coolant Capacity12.5 qts/11.8 L

Engine

DescriptionMWM 3.9L 4-cyl diesel

Transmission

Typesynchronized
Gears6 forward and 2 reverse

Mechanical

Chassis4x2 2WD
Differential Lockmechanical rear
Steeringpower
Brakesmechanical dry disc
CabFour-post ROPS.
Transmission6-speed synchronized

Tires

Standard Tires (ag)Front: 7.50-16. Rear: 18.4-30

Dimensions

Wheelbase86.4 inches/219 cm
Length159.8 inches/405 cm
Width77.6 inches/197 cm
Height (rops)99.2 inches/251 cm
Weight6525 lbs/2959 kg
Clearance (drawbar)18.1 inches/45 cm
Front Tread55.5 to 71.3 inches/140 to 181 cm
Rear Tread59.5 to 82.3 inches/151 to 209 cm

Dimensions And Tires

Wheelbase86.4 inches/219 cm
Weight6525 lbs/2959 kg
Front Tire7.50-16
Rear Tire18.4-30

Capacity

Fuel21.1 gal/79.9 L
Hydraulic System4.5 gal/17.0 L

Hydraulics

Typeopen center
Capacity4.5 gal/17.0 L
Pressure2328 psi/160.5 bar
Pump Flow6.7 gpm/25.4 lpm

Tractor Hitch

Rear TypeII
Controlposition and draft control
Rear Lift3307 lbs/1500 kg

Electrical

Groundnegative
Charging Systemalternator
Charging Amps23
Battery Volts12
Battery Ah135

Speeds

DescriptionWith 18.4-30 rear tires./

Power Take Off Pto

Rear Ptoindependent
Rear Rpm540 (1.375)
Engine Rpm540@1720

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Other Valmet tractors:

Valmet 1100, Valmet 1203, Valmet 15, Valmet 1502, Valmet 20, Valmet 2005, Valmet 205, Valmet 2105, Valmet 255, Valmet 305, Valmet 355, Valmet 365, Valmet 405, Valmet 465, Valmet 500, Valmet 504, Valmet 505, Valmet 555, Valmet 565, Valmet 600, Valmet 6000, Valmet 602 Turbo, Valmet 604, Valmet 604T, Valmet 605, Valmet 6100, Valmet 6200, Valmet 6250, Valmet 6300, Valmet 6350, Valmet 6400, Valmet 655, Valmet 6550, Valmet 6600, Valmet 665, Valmet 6650, Valmet 6750, Valmet 68, Valmet 6800, Valmet 6850, Valmet 6900, Valmet 700, Valmet 702S, Valmet 705, Valmet 755, Valmet 78, Valmet 800, Valmet 8000, Valmet 805, Valmet 8050, Valmet 8100, Valmet 8200, Valmet 8300, Valmet 8350, Valmet 8400, Valmet 8450, Valmet 855, Valmet 8600, Valmet 864, Valmet 865, Valmet 8750, Valmet 8800, Valmet 885, Valmet 8850, Valmet 8950, Valmet 900, Valmet 905, Valmet 985, Valmet 985 4x4,