Craftsman 247.888530 Manual Del Propietário página 21

Carburetor
WARNING: If any adjustments are made
to the engine while the engine is running
(e.g. carburetor), keep clear of all
moving parts. Be careful of heated
surfaces and mufflers.
Minor carburetor adjustments may be required to
compensate for differences in fuel temperature,
altitude and load.
Service
Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. See Figure 23. If you
hit a foreign object or ice jam, the snow thrower is
designed so that the bolts will shear. This type of nut
is used where vibration occurs.
If the augers do not turn, check to see if the bolts
have sheared. Two replacement shear bolts (shown
in Figure 23 inset ) and hex lock nuts have been
provided with the snow thrower. Since lock nuts
cannot be threaded onto a bolt by hand, use a
wrench. When replacing bolts, spray an oil lubricant
into shaft before inserting new bolts.
Shear Bolt
Figure 23
Shave Plate And Skid Shoes
The shave plate and skid shoes on the bottom of the
snow thrower are subject to wear. They should be
checked periodically and replaced when necessary.
• Remove the four carriage bolts, belleville
washers and hex nuts which attach skid shoes
to the snow thrower on two sides. See Figure 23.
• Reassemble new skid shoes with the four
carriage bolts, belleville washers (cupped side
goes against skid shoes) and hex nuts. Make
certain the skid shoes are adjusted to be level.
• To remove shave plate, remove the skid shoe
and the rest of hardware including carriage
•
Replacing Belt
Auger Belts
•
•
Shear Bolt
Shave Plate
21
bolts, belleville washers and hex nuts which
attach shave plate to the snow thrower housing.
For location of shave plate, see Figure 23.
Reassemble new shave plate, making sure
heads of the carriage bolts are to the inside of
the housing. Reinstall skid shoe. Tighten
securely.
:
WARNING Disconnect the spark plug
wire from the spark plug and ground.
Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See Figure 24.
Self-Tapping Screw
Figure 24
Disconnect chute crank assembly at the
discharge chute by removing the hairpin clip and
the two flat washers. See Figure 25.
Hairpin Clip
Remove hairpin
clip, flat washer
Flat
Remove hairpin clip,
Washer
flat washer
Figure 25
Belt Cover
Self-Tapping Screw
Chute
Crank