Service manual

1-6 WPM Drive Systems Manual

WORM DRIVE TRANSMISSION

5. Push the worm shaft out of the cover. This may

require a little pressure.

6. To remove the axle, slide the clutch jaw to the side

and drive the roll pin out of the sleeve and axle (Fig.

012).

Fig 012 3428-0151

7. If the axle bearings are to be re-used, clean the end

of the axle before drawing it out of the case.

8. Remove the sleeve, clutch jaw, helical gear, and

thrust washer (Fig. 013)

Fig 013 3428-0153

Fig 010 3428-0146

2. Drive the roll pins out of the ﬂ anges in the front

and rear of the case. (These pins align the top and

bottom parts of the case) (Fig. 010).

Fig 011 3428-0148

3. Remove the 4 self-tapping screw that connect the

top and bottom cases.

Note: If you turn this transmission on its side or

upside down, oil may leak out of the top. This

is not a sealed case.

4. Remove the transmission cover. The shift fork may

come with the cover or may fall into the bottom of

the case (Fig. 011).

A. Helical Gear C. Sleeve

B. Thrust Washer D. Clutch Jaw