Replacing The Mower Belt; Replacing The Pto Drive Belt - Toro 30438 Operator's Manual

12. Connect clutch wire connector to wire harness.
13. Install PTO drive belt.
5
2
8
Figure 66
1. Transmission belt
2. Idler pulley
3. Clutch retainer
4. Tension spring

Replacing the Mower Belt

Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks are
signs of a worn deck belt. Replace the deck 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 cutting unit and remove the belt covers.
4. Remove the PTO drive belt. Refer to Replacing the
PTO Drive Belt on page 42.
5. Disconnect the idler arm spring to relieve tension on the
idler arm and idler pulley, then remove the worn deck
belt (Fig. 67).
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. 67).
7. Connect the idler arm spring (Fig. 67).
8. Reinstall the PTO drive belt. Refer to Replacing the
PTO Drive Belt page 42.
9. Adjust deck belt guide an 1/8 inch (3 mm) from belt
(Fig. 67).
10. Reinstall the deck covers onto the cutting unit, then
reinstall and tighten the knobs.
3 1
4
7
6
m–5321
5. Clutch wire connector
6. Pivot bolt
7. Drive pulley
8. Engine deck
42
11. Install the carrier frame cover onto the cutting unit, then
install and tighten the hand knobs.
3
5
6
1 2
Figure 67
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 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. 68).
5. Remove the worn drive belt (Fig. 68).
6. Install the new drive belt onto the PTO engagement
pulley and the top groove of the center spindle pulley
(Fig. 68).
7. Install belt onto idler pulley and then install idler spring
(Fig. 68).
8. Adjust PTO drive belt guides an 1/8 inch (3 mm) from
belt (Fig. 68).
9. Install the belt covers onto the cutting unit, then install
and tighten the knobs.
10. Install the carrier frame cover onto the cutting unit, then
install and tighten the hand knobs.
4
3
m–6530
4. PTO drive Belt
5. Center Spindle Pulley
6. Deck belt guide