Theory of Operation
As the second planet gears rotate against the ring
The propel gearbox (T) is a triple reduction planetary
gear they turn the second planet carrier (J). The
drive. The gearbox is interchangeable from the right to
second planet carrier is connected to the third planet
the left side of machine. The propel motor (C) is
sun gear (L). The third planet sun gear rotate the third
connected to and turns the propel shaft (first planet
planet gears (Q). The third planet carrier (H) is fixed to
sun gear) (D).
the housing (E) and does not rotate so the rotation of
the third planet gears is transferred to the ring gear.
Rotary motion is transferred from the propel shaft to
Because the ring gear and sprocket (A) are fasten to
the sprocket (A) by the three planetary gear sets that
the drum (B) they all rotate together driving the track
mesh with the ring gear (I). As the propel shaft is
chain to move the machine.
rotated it turns the first planet gears (O). The gears
rotate against the ring gear causing the first planet
A replaceable ball bearing and thrust plug (M) is used
carrier (K) to rotate. The first planet carrier is
in the cover to hold the input shaft in position.
connected to the second planet sun gear (N) which is
in mesh with and rotates the second planet gears (P).