Servicing Augers - Craftsman 247.886640 Manual Del Propietário

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WARNING: Before servicing, repairing, or
inspecting, disengage a llclutch levers andstop
engine. W aituntilallmoving partshave come
toa complete s top.Disconnect spark
plug wire
and ground it against the engine to prevent
unintended starting.
All adjustments in the Service and Adjustments
section of this manual should be checked at least
once each season.
Servicing Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. See Figure 9. If you hit a
hard foreign object or ice jam, the snow thrower is
designed so that the bolts may shear.
1.
If the augers will not turn, check to see if the bolts
have sheared.
2.
Replace as needed. Replacement shear bolts and
hex lock nuts have been provided with the snow
thrower. When replacing bolts, spray an oil
lubricant into shaft before inserting new bolts.
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.
1.
To remove skid shoes, remove the four carriage
bolts, cupped washers and hex nuts which attach
them to the snow thrower.
2.
Reassemble new skid shoes with the four carriage
bolts, cupped washers (cupped side goes against
skid shoes) and hex nuts. See Figure 11.
bolts are to the inside of housing. Tighten securely.
Replacing Belts
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WARNING:
Disconnect spark plug wire and
ground it against the engine to prevent
unintended starting. Drain fuel into an
approved container or place a piece of plastic
film underneath the gas cap to prevent
gasoline from leaking.
Auger Belt
1.
Remove plastic belt cover from front of the engine
by removing the two self-tapping screws. See
Figure 12.
Belt
Cover
Screws
2.
3.
4.
Figure 12
Drain gasoline from the snow thrower, or place a
piece of plastic under the gas cap.Tip the unit up
and forward so that it rests on auger housing.
Remove six self-tapping screws from the frame
cover underneath the snow thrower.
Roll auger belt off engine pulley. See Figure 13.
Drive
Auger
Belt
Belt
X
Drive
Pulley
Skid
Carriage
Shoe
Bolts
3.
Shave
Nuts
Figure 11
To remove shave plate, remove the carriage bolts,
cupped washers and hex nuts which attach it to the
snow thrower housing. See Figure 11. Reassemble
new shave plate, making sure heads of carriage
Idler
Pulley
Pulley
Figure
13
14
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