Toro Power Clear 721 R 38741 Operator's Manual page 18

Figure 37
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 37).
3. Remove the screw and curved washer that holds the
rotor pulley (Figure 37).
4. Remove the rotor pulley and the drive belt (Figure 37).
5. Install the new drive belt, routing it as shown in (Figure
38).
Figure 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 (Figure 37).
7. Install the curved washer and the rotor pulley bolt and
tighten them securely (Figure 37).
Note: The concave side of the curved washer goes
against the outside of the pulley.
6. Drive belt
7. Rotor shaft
8. Brake spring (unhook from
idler arm here)
9. Idler pulley
10. Engine pulley
3. Engine pulley
4. Rotor pulley
8. Install the brake spring onto the idler arm (Figure 38).
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 Checking the Control Cable and
Adjusting the Control Cable.
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