Gear Pattern Movement Summary

Every gear has a characteristic pattern. The illustrations show typical patterns only and explain how patterns shift as gear location is changed.

1.If contact is toward the heel or base of the gear (Fig. 44):

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.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. 45):

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.Repeat until proper tooth contact and pinion gear to ring gear backlash are correct.

Heel Contact

Base Contact

Figure 44

Toe Contact

Tip Contact

Figure 45

Axles, Planetaries and Brakes

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Groundsmaster 4100--D

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Image 240
Toro 4100-D service manual Gear Pattern Movement Summary