Ariens SNO-THRO 932102 - 520 Owner's/Operator's Manual page 19

Cap Screws
ATTACHMENT CLUTCH / BRAKE
ADJUSTMENT
WARNING: IMPROPER
ADJUSTMENT could result in
unexpected movement of auger
and impeller causing death or
serious injury. Auger/impeller must
stop within 3 seconds when
attachment clutch bail is released.
1. Remove belt cover.
2. Check belt alignment (Figure 9).
Engine sheave and attachment pulley
must align vertically. Also, belt must be
centered in the idler pulley.
To move pulley or sheave:
a.Loosen set screw.
b. Slide pulley/sheave and key to desired
position.
c.Tighten set screw.
3. Adjust cable slack.
IMPORTANT: The clutch cable must be slack
when the bail is disengaged.
a.With clutch bail disengaged, loosen
jam nut on cable adjuster.
b. Lift spring arm, but do not move idler
arm.
c.Turn adjuster body to remove all slack
from the cable. Do not stretch spring
or move idler arm.
d.Release spring arm and turn back the
adjuster body 5 turns (approximately
1/4 in or 6 mm). Finger tighten jam nut.
e. Hold adjuster body with pliers and
tighten jam nut with wrench.
Figure 8
OS1881
4. Check spring length.
a.Measure the length of the clutch cable
spring.
b. Engage and hold the attachment
clutch bail.
c.Measure the length of the spring
again. The spring should be
1/8-3/16 in (3-5 mm) longer when the
bail is engaged.
5. Adjust spring length.
a.Loosen the idler adjustment nut.
b. To increase spring extension, move
idler towards belt (Figure 7).
c.To decrease spring extension, move
idler away from belt.
d.Tighten idler adjustment nut.
6. Check brake.
When the clutch bail is disengaged, the
brake must contact attachment belt.
When the clutch bail is engaged, the
brake must be more than 1/16 in (1.6 mm)
away from the belt.
7. Repeat steps 4 – 6 until:
Spring stretch and brake contact are
correct.
IMPORTANT: If attachment clutch/brake
cannot be adjusted within tolerances, see your
Dealer for repairs.
8. Check belt finger clearance.
With clutch bail engaged, belt fingers
should be 1/16 – 1/8 in (1.6–3 mm) from
belt. Adjust belt fingers as necessary.
9. Replace belt cover.
10. Check that auger/impeller stops within
3 seconds after attachment clutch/
impeller brake bail is released.
GB - 19