Service Manual

2-5
WPM Drive Systems Manual
WORMDRIVETRANSMISSION
Disassembly
1. Cut and discard the push-on retainer on top of the
transmission pulley. Remove the belt and pulley.
8. Remove the transmission from the chassis.
9. Reverse the procedure to install.
Note: Supportthewheelpinionswiththewood
blockwhiledrivingtherollpinsin.Thiswill
preventtheaxlefrombeingbent.Fillthe
transmissionwithoilafteritisinstalledinthe
mower(Fig.009).
Note the front of the transmission is identied by the oil
ll/check screw and the at tab which is part of the lower
case.
6. Place a block of wood under the wheel pinion for
support and drive the roll pin out of the axle (Fig.
007). Repeat the process on the other side.
7. The wheel pinion, thrust washer, pivot, and spring
arm will now slide off the end of the axle (Fig. 008).
Repeat the process on the other side.
Fig008 3428-0137
Fig007 3428-0135
A. Wood Block
A
Fig009 3428-0166
A. Fill/Check C. Tab
B. Plug
A
B
C