Replacing The Drive Belt - Toro Power Clear 721 QZE Operator's Manual

13. Connect the wire to the spark plug.
Note: Ensure that the breather tube is routed above
the spark-plug wire as shown in
1. Breather tube
14. Remove the fuel-tank cap.
15. Install the shroud with the screws that you removed
in step 4.
Note: Ensure that the upper and lower shrouds fit
together in the side grooves.
16. Install the fuel-tank cap.
17. Install the chute seal, the discharge chute, and the
discharge chute handle onto the machine using the
hardware that you removed in step 3.
Note: The small screw goes through the small hole
in the chute seal at the front of the discharge-chute
opening.

Replacing the Drive Belt

If the drive belt becomes worn, oil-soaked, excessively
cracked, frayed, or otherwise damaged, replace the belt.
1. Remove the drive belt cover by removing the 3 bolts as
shown in Figure 37.
Figure 36.
Figure 36
2. Carburetor drain bolt
1. Drive-belt cover
2. Bolt (3)
3. Rotor-pulley bolt
4. Curved washer
5. Rotor pulley
2. Unhook the brake spring from the idler arm to release
the belt tension
3. Remove the screw and curved washer that holds the
rotor pulley (Figure
4. Remove the rotor pulley and the drive belt
5. Install the new drive belt, routing it as shown in
38).
1. Brake spring (install on
idler arm here)
2. Idler pulley
Note: Route the new drive belt first around the engine
pulley, then the idler pulley, and finally around the
loose rotor pulley positioned just above the rotor shaft
(Figure 37).
6. Install the rotor pulley onto the rotor shaft
7. Install the curved washer and the rotor-pulley bolt and
tighten them securely
Note: The concave side of the curved washer goes
against the outside of the pulley.
16
Figure 37
6. Drive belt
7. Rotor shaft
8. Brake spring (unhook from
idler arm here)
9. Idler pulley
10. Engine pulley
(Figure 37).
37).
Figure 38
3. Engine pulley
4. Rotor pulley
(Figure 37).
(Figure 37).
(Figure
(Figure 37).