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COMPONENT OPERATION / Axle
TORQUE PROPORTION-
ING DIFFERENTIAL (TPD)
The wheel loader is operated mostly on rough ground
condition. Working efficiency and tire lives are lowered
due to tire slippage. In order to avoid lowering of
working efficiency and tire lives, the axle is provided
with the torque proportioning differential.
The differential pinion gear of the torque proportioning
differential has an odd number of teeth, and the dif-
ferential pinion gear and the side gear have special
tooth profiles. Therefore, the difference of the ground
resistances to the left and right tires causes deviation
of the gearing locations between the differential pinion
gear and the left and right side gears, and the driving
force transferred to the left and right tires changes.
Differential Pinion Gear
Right Side Gear
Left Side Gear
Forward Rotation
T487-03-06-015
T3-10-6
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