Gear Pattern Movement Summary
Heel Contact
Base Contact
Every gear hasacharacteristic pattern. Theillustrations
showtypicalpatternsonlyandexplainhowpatternsshift
as gear location is changed.
1.
If contact is toward the heel or base of the gear (Fig.
42):
A. Install thicker or additional bearing case shim(s)
to move pinion shaft toward ring gear.
Figure 42
B. Install thinner or remove differential bearing
shim(s) to move ring gear backward.
Toe Contact
Tip Contact
C. Repeat until proper tooth contact and pinion gear
to ring gear backlash are correct.
2.
If contact is toward the toe or tip of the gear (Fig. 43):
A. Install thinner or remove bearing case shim(s) to
move pinion shaft away from ring gear.
B. Install thicker or additional differential bearing
shim(s) to move ring gear forward.
Figure 43
C. Repeat until proper tooth contact and pinion gear
to ring gear backlash are correct.
Axles, Planetaries and Brakes
Page 6 -- 30
Groundsmaster 4500--D/4700--D
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