Toro 20330 Service Manual - Page 31

Adjusting Wheel Traction Drive - traction cable

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Page 31 highlights

WORM DRIVE TRANSMISSION 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 fill plug opening after it is installed in the chassis. The top of the transmission is not sealed, so it may leak if filled and tipped. 2. Rotate the adjustment knob under the lower lefthand 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). Controls 1. Knob Fig 024 2. Cable fig 19 Adjusting Wheel Traction Drive 1. Stop the engine. 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). WPM Drive Systems Manual Fig 025 fig 20 1-13

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WPM Drive Systems Manual
WORM DRIVE TRANSMISSION
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 fill plug opening after it
is installed in the chassis. The top of the transmission is
not sealed, so it may leak if filled and tipped.
Fig 025
fig 20
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
fig 19
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).
Controls
Adjusting Wheel Traction Drive
1. Stop the engine.
1. Knob
2. Cable