Replacing The Drive Belt; Replacing The Spark Plug - Toro CCR Powerlite 38173 Operator's Manual

Replacing the Drive Belt

Inspect the drive belt before each season, and replace it if
it is worn or damaged.
1. Stop the engine and remove the key from the switch.
2. Pull the wire off the spark plug.
3. Remove three self-tapping screws, one capscrew, one
washer, and one nut that secures the left side cover to
the snowthrower frame (Fig. 11).
Figure 11
1. Self tapping screws
4. Remove the cover.
5. Loosen the four engine mounting nuts enough to allow
the belt guide to rotate away from the drive pulley to
remove the belt (Fig. 12).
Figure 12
1. Idler pulley
2. Engine mounting nuts (3
of 4 shown)
3. Idler spring
IMPORTANT: Removing the nuts will cause the engine
to become loose.
6. Loosen the idler pivot nut (Fig. 13).
2. Capscrew, nut, washer
m–4015
4. Hole
5. Brake arm
6. Belt guide
7. Cable pulley
1. Rotor pulley
2. Drive pulley
3. Idler pulley
7. Remove the drive belt from the rotor pulley (Fig. 13).
8. Push down on the idler pulley to release the brake arm
and pull the drive belt from behind the brake arm
(Fig. 13).
9. Slide the drive belt off of the drive pulley (Fig. 13).
10. Loop the new drive belt around the drive pulley and
behind the brake arm (Fig. 13).
11. While holding the drive belt, slip the belt onto the
rotor pulley and rotate the rotor with the other hand
until the drive belt is completely on the rotor pulley
(Fig. 13).
12. Ensure that the long end of the idler spring is hooked
in the housing hole and the round end of the spring is
hooked in the brake arm (Fig. 12).
13. Lift up the brake arm assembly, squeeze the drive belt
together, and route the drive belt under the idler pulley
(Fig. 12).
14. Torque the engine mounting nuts and the idler pivot
nut (Fig. 13) to 170 to 200 in–lbs (19.2 to
IMPORTANT: Ensure that the drive cable is on the
cable pulley before you install the left side cover
(Fig. 12)
15. Install the left side cover and tighten fasteners
securely, but do not overtighten.

Replacing the Spark Plug

Before each season, check the spark plug. If the electrodes
in the center of the plug are dark or have deteriorated,
install a new NGK BPMR4A spark plug.
1. Remove the two screws that secure the control panel to
the housing (Fig. 14).
16
m–4014
Figure 13
4. Drive belt
5. Brake arm
6. Idler pivot nut
N·m
).