Replacing The Drive Belt - Toro 38451 Operator's Manual

12. Install the spark plug and torque it to 20–22 ft-lb
(27–30 N-m).
13. Connect the wire to the spark plug.
Note: Ensure that the breather tube is routed above
the spark plug wire as shown in Figure 35.
1. Breather tube
14. Remove the fuel tank cap.
15. Install the shroud with the screws 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 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 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 36.
Figure 35
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 (Figure 36).
3. Remove the screw and curved washer that holds the
rotor pulley (Figure 36).
4. Remove the rotor pulley and the drive belt
(Figure 36).
5. Install the new drive belt, routing it as shown in
(Figure 37).
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 36).
6. Install the rotor pulley onto the rotor shaft
(Figure 36).
7. Install the curved washer and the rotor pulley bolt
and tighten them securely (Figure 36).
16
Figure 36
6. Drive belt
7. Rotor shaft
8. Brake spring (unhook from
idler arm here)
9. Idler pulley
10. Engine pulley
Figure 37
3. Engine pulley
4. Rotor pulley