15
5.
Set the spark plug gap (Fig. 21) between the electrodes
to .032 in. (.81 mm).
.032 in.
(.81 mm)
Figure
21
6. Install
the spark plug and torque it to 15 ft-lb
(20.4 N
m). If you do not have a torque wrench,
tighten the plug firmly
.
7.
Push the wire onto the spark plug.
8.
Install the control panel with the capscrews.
Replacing
the Rotor Blades
Before
each season, inspect the rotor blades for wear
.
When a rotor blade edge has worn to the wear indicator
hole (Fig. 22), replace
both
rotor blades to ensure proper
performance and to prevent damage to the underside of
the snowthrower
.
1
Figure
22
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.
Removing the Old Blade
Note:
Y
ou will need a No. T27 torx driver to complete
this procedure.
1.
Remove four torx screws and four locknuts that secure
the outer edges of the rotor blade to the rotor shaft
assembly (Fig. 23).
2.
Remove two hex-head capscrews, spacers, and
locknuts that secure the center of the blade to the rotor
halves (Fig. 23).
3.
Loosen the hex-head screw securing the rotor halves to
the auger shaft assembly (Fig. 23).
4.
Slide the blade out from between the rotor halves
(Fig. 23).
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