Toro 30857 - Page 240

Groundsmaster 4500--D/4700--DPage 6 -- 30Axles, Planetaries and Brakes
Gear Pattern Movement Summary
Everygearhasacharacteristicpattern.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.
B. Install thinner or remove differential bearing
shim(s) to move ring gear backward.
C. Repeatuntilpropertoothcontactandpiniongear
to ring gear backlash are correct.
2. Ifcontactis towardthetoeor tipofthegear (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.
C. Repeatuntilpropertoothcontactandpiniongear
to ring gear backlash are correct.
Figure 42
Heel Contact Base Contact
Figure 43
Toe Contact Tip Contact