GB - 32
IMPORTANT: If traction clutch cannot be
adjusted within specified range, see your
Dealer for repairs.
Attachment Drive Belt
Replacement
Remove old attachment drive belts:
1. Shut off engine, remove key, disconnect
spark plug wire and allow unit to cool
completely.
2. Remove belt cover and chute gear cover
(921002, 003, 004) (Figure 44).
3. Rotate discharge chute all the way to the
left (as viewed from the operator’s
position).
4. 921002, 003, 004: Remove hair pin
under the control panel connecting the
discharge chute rod to the chute rotation
lever and slide the discharge chute rod
forward.
921001: Remove spring pin from chute
crank and separate.
IMPORTANT: Disconnect chute lock cable
and deflector cable, if equipped (921002,
003, 004).
5. Remove belt finger (Figure 40).
6. Remove attachment drive belt from
engine sheave (it may be necessary to
turn engine sheave using recoil starter
handle).
IMPORTANT: To avoid bending bottom cover
when tipping unit apart, support handlebars
firmly or tip unit up on housing and remove
bottom cover by removing six cap screws
before separating unit.
7. Support Sno-Thro frame and housing.
8. Remove hex bolts securing housing to
frame (two on each side). Tip housing
and frame apart on pivot pin (Figure 44).
9. Remove attachment drive belts from
attachment pulley (hold brake away from
belt).
Install new attachment drive belts:
1. Place new attachment belts onto
attachment pulley.
NOTE: Holding down the attachment clutch
lever will make it easier to reconnect the
housing and frame.
2. Tip housing and frame back together
and secure with hex bolts.
3. Place belt onto engine sheave.
4. Reposition and secure belt fingers.
IMPORTANT: With clutch lever engaged, belt
finger on the side opposite the belt idler
should be less than 1/8 in. (3 mm) from belt,
but not touching the belt. Adjust belt finger as
necessary.
Figure 43
OS7144
>1/32 in.
(.8 mm)
CAUTION: Always support Sno-
Thro frame and blower housing
when loosening the cap screws
holding them together. Never
loosen cap screws while unit is
in service position.
Figure 44
921001
921002, 003, 004
