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

To remove the transmission from the mower proceed as
follows:
1. Remove both rear wheels.
2. Remove the retaining rings, springs, gears, keys,
clutches, and pivot arms on both sides ("Wheel
Pinion Clutch" on page 5-2).
3. Remove the belt.
4. There is a suspension bracket on each side that
secures the transmission and pivot arms to the
chassis. Each bracket has 2 screws. Once they are
removed, the transmission will drop out.
To install, reverse the above process.
Fill the transmission level with the fi ll plug opening after it
is installed in the chassis. The top of the transmission is
not sealed, so it may leak if fi lled and tipped.

Controls

Adjusting Wheel Traction Drive
1. Stop the engine.
WPM Drive Systems Manual
WORM DRIVE TRANSMISSION
2. Rotate the adjustment knob under the lower left-
hand side of the control panel ½ turn clockwise to
tighten the belt, or ½ turn counterclockwise to loosen
the belt. Hold the control cable while rotating the
knob to prevent the cable from turning (Fig. 024).
1. Knob
3. To check the adjustment, slowly squeeze the control
bar towards the handle. The cable is adjusted
correctly when resistance is felt when the control bar
is approximately 1" (25mm) from the upper handle
(Fig. 025).
Fig 024
2. Cable
Fig 025
fi g 19
fi g 20
1-13