Valtra A95n Operator's Manual download pdf (Page 17)

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C. General description

C4.2. Gearbox

A3565---18

The speed gearbox has four synchronized gears which

are c ontrolled with a speed gear lever.

In front of the gearbox there is fitted a shuttle unit.

On models with the shuttle unit the gearbox has three

range gears; LL=creeper range, M=Medium range and

H= High range. M and H ranges are synchronized. All

these three range gears are controlled with one lever. In

the gearbox there are 12 forward speeds and 12 reverse

speeds.

The gearbox has a common housing with the differential.

Helical gears of the gearbox give a low noise level and

vibrationless power transmission. The gearbox also has

pressurized lubrication provided with an oil filter.

C4.3. Rear axle

The rear axle is fitted directly to the gearbox.

The differential lock is of the pawl type which is engaged

and disengaged electro---hydraulically. An indicator lamp

on the instrument panel lights up when the differential lock

is engaged.

Final drives are of the planetary gear type. From the

planetary gears power is transmitted to the rear wheels.

C4.4. Power shuttle

65---8,5

The shuttle unit is synchronized and has a pressure

lubrication system. The forward---reverse shutle is

controlled with the lever nearest to the driver. For this

reason forward/reverse changing can be made quickly

and very easily e.g when loading work is carried out.

C4.5. Powered front axle

A3565---20

The powered front axle is driven from the output shaft of

the gearbox for front wheel drive through a propeller shaft.

The differential of the front axle has an automatic

differential brake. The differential brake engages

automatically when wheel---spin occurs.

Front wheel drive can be engaged and disengaged

electro---hydraulically. When 4WD is engaged the springs

force the discs together and four---wheel drive engages.

Consequently the 4WD is always engaged when the

engine is stopped (multi---disc clutch not pressurized).

In addition when braking with both brake pedals or when

engaging parking brake, the front---wheel drive always

engages in order to provide the braking function for the

front wheels.

Front wheel drive can be used in all gears, but when

running on the road it should remain disengaged.

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Valtra A95n Operator's Manual Page 17

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