Disassembly - Toro 20330 - Low Wheel Walk Power Mower Service Manual

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.
A A
A. Wood Block
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.
WPM Drive Systems Manual
Fig 007 3428-0135
Fig 008 3428-0137
WORM DRIVE TRANSMISSION
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 identifi ed by the oil
fi ll/check screw and the fl at tab which is part of the lower
case.
A
A. Fill/Check
B. Plug

Disassembly

1. Cut and discard the push-on retainer on top of the
transmission pulley. Remove the belt and pulley.
C
B
Fig 009 3428-0166
C. Tab
1-5