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

Replacing the Drive Belt

Service Interval: Every 50 hours
Yearly
If 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 34.
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 (Figure
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
35).
1. Brake spring (install on
idler arm here)
2. Idler pulley
Figure 34
6. Drive belt
7. Rotor shaft
8. Brake spring (unhook from
idler arm here)
9. Idler pulley
10. Engine pulley
34).
34).
(Figure
Figure 35
3. Engine pulley
4. Rotor 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
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.
8. Install the brake spring onto the idler arm
9. Install the drive belt cover with the bolts you removed
in step 1.
Note: Ensure that the drive belt is properly adjusted
and operating; refer to
(page 14)
34).
(Figure
18
34).
(Figure 34).
Checking the Control Cable
and Adjusting the Control Cable (page
(Figure 34).
(Figure 35).
14).