Replacing The Rotor Blades - Toro CCR Powerlite 38173 Operator's Manual

Figure 14
1. Control panel
2. Remove the ignition key and lift off the panel,
allowing it to hang on the recoil rope.
3. Pull the wire off the spark plug and remove the spark
plug (Fig. 15)
Figure 15
1. Spark plug wire
4. Examine the spark plug and replace it if it is cracked,
fouled, or dirty.
IMPORTANT: Do not sandblast, scrape, or the clean
spark plug. Dirt may fall into the cylinder and cause
engine damage.
5. Set the gap between the electrodes at .030 in.
(.76 mm). Install the plug and tighten to 15 ft-lb
.
(20.4 N m). If the torque wrench is not used, tighten
the plug firmly by hand; do not overtighten.
6. Push the wire onto the spark plug and install the
control panel.
917
2. Screws
.030 in.
(.76 mm)

Replacing the Rotor Blades

Before each snowy season, inspect the rotor blades for
wear. When a rotor blade edge has worn to the wear
indicator hole (Fig. 16), replace both rotor blades to
ensure proper performance and to prevent damage to the
underside of the snowthrower.
1
1. Wear indicator hole
Note: Replace the scraper whenever you replace the rotor
blades. This ensures proper snowthrower operation and
performance.
Note: The running time and the roughness of the driveway
or the sidewalk determines the wear rate of the rotor
blades.
Before replacing the rotor blades, stop the engine, remove
the key from the switch, and pull the wire off from the
spark plug.
Removing the Old Blade
Note:
You will need a T27 torx driver to complete this
procedure.
1. Remove four torx screws, two caps screws, and six
locknuts that secure the blade to the rotor shaft
assembly.
2. Slide the blade out from between the blade supports
(Fig. 17).
Installing a New Blade
1. Examine a new rotor blade edge for the difference in
layer thickness (Fig. 17). Some rotor blades have a
part number on the thick side of the blade.
Install the rotor blades with the thick layer on the
inside of the curve. (Fig. 17). If you do not install the
blades properly, the blades may be out of balance and
cause the snowthrower to "hop" or "bounce."
2. Insert the new blade between the blade supports.
3. Secure the center of the blade to the blade supports
with two capscrews and two locknuts.
17
Figure 16