Specifications

50
3. Front axle
The main specifications of the front axle:
Type
Full-floating type, integral shaped
Main reduction gear
Type
Spiral bevel pinion type
Reduction ratio
4.75
Final reduction gear
Type
Planetary gear type
Reduction ratio
4.25
Total reduction ratio
20.19
Amount of oil
Main reduction gear
Differential
10 L
Final reduction gear
8 L (left and right)
Driving wheel
Tire
8.25-15-14PR
Rim
6.50-15
Air pressure KPa
800
3.1 General description
The front axle consists of the main reduction gear, the differential, the final
reduction gear and brakes. (see Fig. 3.1) The front axle is bolted to the front side of
the frame. The mast is installed on the axle housing.
3.2 Main reduction gear & differential
The main reduction gear & differential consists primarily of a cross case, ring gear
(spiral bevel pinion) and drive pinions, which are all assembled on the main reduction
gear carrier as shown in Fig. 3.2, and is fitted to the axle housing through packing.
3.3 Final reduction gear
The final reduction gear is of the planet gear type consisting of a sun gear,
planetary gears and an internal gear. Two final reduction gears are installed on each
end of the axle housing. The sun gear is splined to the axle shaft and locked with snap
ring. The planetary gears are installed onto the shafts in the planet carrier which is
fixed to the wheel hub. The internal gear is splined to the axle spindle through hub.
The principle of power transmission is as follows (see Fig. 3.3).
When the sun gear turns, the rotation is transmitted to the pinion gears and ring