Toro 30431, Operator'S Manual, Page: 40 / 48

40
11. Install the carrier frame cover and rubber washers onto
the cutting unit, then install and tighten the hand knobs.
4
3
1
5
3
2
6
m–6529
Figure 60
1. Deck belt
2. Idler arm spring
3. Outside pulley
4. PTO drive Belt
5. Center Spindle Pulley
6. Deck belt guide
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 and rubber washers holding the
carrier frame cover and remove the carrier frame cover.
3. Remove the knobs and rubber washers holding the belt
covers to the top of the cutting unit and remove the belt
covers.
4. Remove the idler spring from idler arm. Remove the
drive belt from the PTO engagement pulley and the
center spindle pulley (Fig. 61).
5. Remove the worn drive belt (Fig. 61).
6. Install the new drive belt onto the PTO engagement
pulley and the top groove of the center spindle pulley
(Fig. 61).
7. Install belt onto idler pulley and then install idler spring
(Fig. 61).
8. Adjust PTO drive belt guides an 1/8 inch (3 mm) from
belt (Fig. 61).
9. Install the belt covers and rubber washers onto the
cutting unit, then install and tighten the knobs.
10. Install the carrier frame cover and rubber washers onto
the cutting unit, then install and tighten the hand knobs.
3 1
4
5
5
6
2
m–6529
Figure 61
1. PTO engagement pulley
2. PTO drive belt idler
3. PTO drive Belt
4. Center Spindle Pulley
5. PTO Drive belt guide
6. Idler Spring
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.
1. Raise the cutting unit so the caster wheels are off the
floor, then block up the front of the mower with jack
stands.
2. Remove the locking pin and spacer(s) from the top of
the caster wheel fork (Fig. 62).