Ariens Sno-Thro 924117 - 1024 - Manual (Page 24)

GB - 24
ATTACHMENT CLUTCH/BRAKE
ADJUSTMENT
(Figures 17 and 18)
1. Remove belt cover.
2. Check belt alignment (Figure 20).
Engine sheave and attachment pulley
must align vertically. Also, belt must be
centered in the idler pulley.
To align, move attachment pulley:
a.Loosen set screws.
b. Slide pulley and key to desired
position.
c.Tighten set screws.
3. Adjust cable slack.
IMPORTANT: The clutch cable must be slack
when the lever is disengaged.
a.With clutch lever disengaged, loosen
jam nut on cable adjuster.
b. Turn adjuster body to remove all slack
from the cable. Do not stretch spring
or move lower clutch arm.
c.Turn back the adjuster body 5 turns
(approximately 1/4 in or 6 mm). Finger
tighten jam nut.
d.Hold adjuster body with pliers and
tighten jam nut with wrench.
4. Check spring length.
a.Measure the length of the clutch cable
spring.
b. Engage and hold the attachment
clutch lever.
c.Measure the length of the spring
again. The spring should be
3/16 –7/16 in (5–11 mm) longer when
the lever is engaged.
5. Adjust spring lesngth.
NOTE: Approximately 1/8 in (3 mm)
movement of the idler will change spring
extension by 1/8 in (3 mm).
a.Loosen the idler adjustment nut.
b. To increase spring extension, move
idler towards belt (Figure 20).
c.To decrease spring extension, move
idler away from belt.
d.Tighten idler adjustment nut.
6. Place unit in service position. Remove
bottom cover by removing four cap
screws.
7. Check brake.
When the clutch lever is disengaged, the
brake must contact attachment belt.
When the clutch lever is engaged, the
brake must be more than 1/16 in (1.6 mm)
away from the belt (Figure 18).
8. Repeat steps 4 – 7 until:
Spring stretch and brake contact are
correct.
9. Check belt finger clearance (Figure 20).
With clutch lever engaged, belt fingers
should be 1/16 – 1/8 in (1.6 –3 mm) from
belt. Adjust belt fingers as necessary.
10. Replace belt cover and bottom cover.
IMPORTANT: IMPROPER
ADJUSTMENT could result in
unexpected movement of auger and
impeller causing death or serious
injury. Auger / impeller must stop
within 5 seconds when Attachment
Clutch/Impeller Brake lever is
released.
Figure 17 OS1182
2
3
4
5
6
7
1
8
9
10
3/16 –7/16 in
(5–11mm)
1. Attachment
Clutch Cable
2. Cable Adjuster
3. Jam Nut
4. Clutch Cable
Spring
5. Lower Clutch
Arm
6. Lever Arm
7. Cotter Pin and
Washer
8. Adjustment Nut
9. Shift Rod
10.Traction Drive
Clutch Cable