Replacing The Drive Belt - Toro Power Clear 621 Service Manual

Replacing the Drive Belt

If drive belt becomes worn, oil­soaked, excessively
cracked, frayed, or otherwise damaged, replace the belt.
1. Remove the drive belt cover by removing the 3 bolts
as shown in Fig. 021.
J
I
H
G
F
E
D C
A. Drive Belt Cover
B. Bolt (3)
C. Rotor Pulley Bolt
D. Curved Washer
E. Rotor Pulley
F. Drive Belt
2. Unhook the brake spring from the idler arm to release
the belt tension (Fig. 021).
3. Remove the screw and curved washer that holds
the rotor pulley (Fig. 021).
4. Remove the rotor pulley and the drive belt
(Fig. 021).
Toro Single Stage Snow Service Manual
SPECIFICATIONS & MAINTENANCE
A
B
Fig. 021
G. Rotor Shaft
H. Brake Spring
(unhook from idler
arm here)
I. Idler Pulley
J. Engine Pulley
5. Install the new drive belt, routing it as shown in
(Fig. 022).
A B
D
A. Brake Spring (install on
idler arm here)
B. 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 (Fig. 022).
6. Install the rotor pulley onto the rotor shaft
(Fig. 022).
7. Install the curved washer and the rotor pulley bolt and
tighten them securely (Fig. 022).
NOTE
The concave side of the curved washer goes against the
outside of the pulley.
8. Install the brake spring onto the idler arm
(Fig. 022).
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."
C
Fig. 022
C. Engine Pulley
D. Rotor Pulley
2-21