Service Manual

2-8

WPM Drive Systems Manual

WORMDRIVETRANSMISSION

4. Using a seal protector, slide new seals down each

side of the axle, Install the seal with the lip facing the

transmission. The outer edge of the seal should be

ush with the outside of the case. If a seal protector

is not available, wrap a piece of cellophane around

the axle (Fig. 018).

3. Note: Some replacement axles have more than one

hole that can be used to pin the sleeve to the axle.

Refer to the original axle to identify the correct hole

to use. Then drive a roll pin through the sleeve and

axle (Fig. 017).

2. Clean the rust and dirt from the both ends of the

axle. Wipe the inner diameter of the bushings with a

clean cloth. Lightly oil the axle and insert it into the

gear case. When facing the front of the gearbox,

insert the short end of the axle from left to right.

Install the thrust washer, helical gear, and the sleeve

and clutch jaw. Then push the axle through the other

side of the case.

Assembly

1. Use bushing installation tool P/N 27-0460, to press

in new axle bushings. This tool helps keep the

bushing straight and keeps the inner diameter of the

bushing correctly sized.

Note: Thebushingsaretwodifferentlengths.The

sideofthecasewiththethickerbossuses

alongerbusingtosupporttheaxle.The

bushingsshouldbeushwiththeinsideof

thecase(Fig.016).

Fig016 3428-0158

A. Tool P/N 27-0460

Fig017 3428-0151

Fig018 3428-0170

A. Seal protector or B. Seal

Cellophane