Replacing The Pto Drive Belt; Replacing The Caster Wheel Fork Bushings - Toro ProLine 30333 Operator's Manual

Mid–size mower proline gear 15 hp with 52 in. side discharge mower
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5. Disconnect the idler arm spring to relieve tension on the
idler arm and idler pulley, then remove the worn deck
belt (Fig. 57).
6. Install the new deck belt around the two outside spindle
pulleys, the idler pulley, and in the lower groove of the
center spindle pulley (Fig. 57).
7. Connect the idler arm spring (Fig. 57).
8. Reinstall the PTO drive belt. Refer to Replacing the
PTO Drive Belt page 37.
9. Reinstall the deck covers onto the cutting unit, then
reinstall and tighten the knobs.
10. Install the carrier frame cover onto the cutting unit, then
install and tighten the hand knobs.
11. Adjust deck belt guide an 1/8 in. (3 mm) from belt
(Fig. 57).
3
5
6
1
2
Figure 57
1. Deck belt
2. Idler arm spring
3. Outside 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. Stop the engine, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Remove the knobs holding the carrier frame cover and
remove the carrier frame cover.
3. Remove the knobs holding the belt covers to the top of
the cutting unit and remove the belt covers.
4
3
m–5196
4. PTO Drive belt
5. Center spindle pulley
6. Belt guide
4. Remove the heat shield from the the engine deck and
carrier frame.
5. Remove the idler spring from idler arm. Remove the
drive belt from the PTO engagement pulley and the
center spindle pulley (Fig. 58).
6. Remove the worn drive belt (Fig. 58).
7. Install the new drive belt onto the PTO engagement
pulley and the top groove of the center spindle pulley
(Fig. 58).
8. Install belt onto idler pulley and then install idler spring
(Fig. 58).
9. Adjust PTO drive belt guides an 1/8 in. (3 mm) from
belt (Fig. 58).
10. Install the heat shield to the the engine deck and carrier
frame.
11. Install the belt covers onto the cutting unit, then install
and tighten the knobs.
12. Install the carrier frame cover onto the cutting unit, then
install and tighten the hand knobs.
5
4
1. PTO engagement pulley
2. Drive belt idler
3. PTO drive Belt
Replacing the Caster Wheel
Fork Bushings
The caster wheel forks are mounted in bushings pressed
into the top and bottom of the carrier frame mounting
tubes. To check the bushings, move the caster forks back
and forth and side-to-side. If a caster fork is loose, the
bushings are worn and must be replaced.
37
1
3
6
Figure 58
4. Center Spindle Pulley
5. PTO Drive belt guide
6. Idler Spring
2
5
m–5196

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