16
FIG 17
6.12 Adjusting the Auger/Impeller Drive Belt
Service Interval:
After the first hour
Before each use or daily
Operating the snow thrower with an auger/impeller
drive belt that slips decreases the snow throwing
performance and damages the belt. Check the
auger/impeller drive belt for the proper tension after
the first operating hour, then check and adjust the belt
when necessary.
Improperly adjusting the auger/impeller may cause it
to turn when disengaged. A rotating auger/impeller
can cut off or injure fingers, hands, or feet.
Keep your face, hands, feet, and any other part of
your body or clothing away from concealed,
moving, or rotating parts.
Do not adjust the auger/impeller drive belt too
tight. It may cause the auger/impeller to turn
when the control lever is in the disengaged
position. If this occurs, decrease the belt tension.
6.12.1
Press down on the auger/impeller drive lever
and check the tension of the drive belt. Tension should
be set at 1/4 inch belt deflection to 10 pounds of pull.
(FIG 18)
6.12.2
Loosen the flange-head bolts of the tension
pulley, adjust, and retighten the bolts.
6.12.3
Repeat steps 6.12.1 and 6.12.2 above, until the
¼” deflection is achieved.
6.12.4
Insert the ignition key and start the engine.
6.12.5
If the belt still slips, replace it.
Important:
Don’t operate the snow thrower if the
auger and the impeller rotate when you disengage the
auger/impeller drive control lever.
FIG 18
6.13 Replacing the Auger/Impeller Drive
Belt
If the auger/impeller drive belt becomes worn,
oil-soaked, or otherwise damaged, replace the belt.
6.13.1
Loosen bolts and remove the belt cover.
6.13.2
Remove the belt.
6.13.3
Install new belt.
6.13.4
Install the belt cover.
Important:
Don’t operate the snow thrower if the
auger and the impeller rotate when you disengage the
auger/impeller drive control lever.
6.14 Replacing the Safety Pin
When the snow thrower is overloaded or strikes a
foreign object in operation, the safety pin will shear
automatically to prevent damage to the rear
transmission. Stop the engine, remove the ignition key,
close the fuel shutoff valve and examine the snow
thrower.
6.14.1
Clean out sheared safety pin. (FIG 19)
6.14.2
Replace safety pin, tighten the nut.
6.14.3
Lubricate the snow thrower. See “Lubricating
the Snow thrower”.
Summary of Contents for WS2690BSE
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