Ariens Sno-Thro 921 Série Manuel Du Propriétaire/Utilisateur page 30

2. If there is less than 1/16 in. (1.6 mm)
gap between brake pad and belts loosen
idler adjustment nut, and move idler
away from belt. Position idler to achieve
a 1/16 in. (1.6 mm) minimum brake pad
gap and a 1/2 in. (12.7 mm) minimum
gap between the plastic roller and the
frame.
IMPORTANT: If adjustments cannot be
brought into specified ranges see your Dealer
for repairs.
Check Belt Finger Clearance
1. With clutch lever engaged, the belt
finger located opposite the belt idler
must be less than 1/8 in. (3 mm) from
belts, but not touching the belts
(Figure 36).
To adjust belt finger, loosen the bolts and
move the finger to the proper position.
Tighten the bolts and recheck the belt
finger clearance.
2. Replace the belt cover and tighten
hardware.
1
2
Check belt finger clearance here. With
the attachment clutch engaged, there
should be less than 1/8 in. (3 mm)
clearance between the belts and the
belt finger. The belt finger should not
touch the belts.
1. Mounting Hardware
2. Belt Finger
Figure 36
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. Loosen hardware securing belt cover to
unit.
NOTE: DO NOT completely remove the
hardware from unit.
3. Remove belt cover.
4. 921017, 018 - Remove chute gear cover
(Figure 37).
5. Rotate discharge chute all the way to the
left (as viewed from the operator's
position).
6. 921017, 018 - Remove hairpin under the
control panel connecting the discharge
chute rod to the chute rotation lever and
slide the discharge chute rod forward.
921013, 022, 023, 031 - Remove spring
clip from chute crank and separate.
IMPORTANT: Disconnect chute lock cable
and deflector cable, if equipped.
7. Remove belt finger (Figure 36).
8. 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.
9. Support Sno-Thro frame and housing.
10. Remove hex bolts securing housing to
frame (two on each side). Tip housing
and frame apart on pivot pin (Figure 37).
11. Remove attachment drive belts from
attachment pulley (hold brake away from
belt).
OS7194
GB - 30
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.