Replacing The Pto Drive Belt - Toro 30433 Operator's Manual

4. Remove the knobs and rubber washers holding the belt
cover to the cutting unit and remove the belt cover.
5. Remove the PTO drive belt. Refer to Replacing the
PTO Drive Belt on page 48.
6. Disconnect the idler arm spring to relieve tension on
the idler arm and idler pulley, then remove the worn
mower belt (Fig. 71).
7. Install the new mower belt around the outward spindle
pulley, the idler pulley, and in the lower groove of the
double spindle pulley (Fig. 71).
8. Reconnect the idler arm spring (Fig. 71).
9. Install the PTO drive belt. Refer to Replacing the PTO
Drive Belt on page 48.
10. Reinstall the belt cover onto the cutting unit, then
reinstall and tighten the knobs and rubber washers.
11. Install the carrier frame cover onto the cutting unit,
then install and tighten the knobs and rubber washers.
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4
3
2
Figure 71
1. Mower belt
2. Idler arm spring
3. Outward pulley

Replacing the PTO Drive Belt

Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks are
signs of a worn drive belt. Replace the drive belt if any of
these conditions are evident.
1. Disengage the PTO and set the parking brake.
5
m–5247
4. PTO Drive Belt
5. Double Spindle Pulley
48
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove the knobs and rubber washers holding the
carrier frame cover and remove the carrier frame
cover.
4. Remove the knobs and rubber washers holding the belt
covers to the top of the cutting unit and remove the
belt covers.
5. Remove the heat shield from the the engine deck and
carrier frame.
6. Remove the idler spring from idler arm. Remove the
drive belt from the PTO clutch pulley, idler pulleys
and the left spindle pulley (Fig. 72).
7. Install the new drive belt onto the PTO engagement
pulley and the top groove of the center spindle pulley
(Fig. 72).
8. Install belt onto idler pulleys and then install idler
spring (Fig. 72).
9. Install the heat shield to the engine deck and carrier
frame.
10. Reinstall the belt covers onto the cutting unit, then
reinstall and tighten the knobs and rubber washers.
11. Reinstall the carrier frame cover onto the cutting unit,
then reinstall and tighten the knobs and rubber
washers.
3
Figure 72
1. PTO clutch pulley
2. Drive belt idler
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2
4
m–5247
3. Drive Belt
4. Double Spindle Pulley