Ariens snow-thro 924124-128 Service Manual page 21

4
3
2
1. Pinion
2. Chute Gear
Figure 13
Attachment Clutch/Brake Adjustment
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.
1. Remove belt cover.
2. Check belt alignment (Figure 8).
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. Install belt cover.
4. Adjust cable slack.
IMPORTANT: The belt cover must be installed and the
clutch cable must be slack when the lever is
disengaged.
See Figure 14
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.
1
OS6641
DS6730
3. Carriage Bolt
4. Spring
5. 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 7/16-11/16 in. (11.1-17.5 mm)
longer when the lever is engaged.
6. Adjust spring length.
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 8).
c. To decrease spring extension, move idler away
from belt.
d. Tighten idler adjustment nut.
7. Place unit in service position. Remove bottom
cover by removing four cap screws.
8. 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 15).
9. Repeat steps 4 - 7 until:
Spring stretch and brake contact are correct.
10.Check belt finger clearance (Figure 8). With clutch
lever engaged, belt fingers should be 1/16 - 1/8 in.
(1.6 - 3 mm) from belt. Adjust belt fingers as
necessary.
11.Replace bottom cover.
9
8
7
1. Attachment Clutch
Cable
2. Cable Adjuster
3. Jam Nut
4. Clutch Cable Spring
5. Lower Clutch Arm
4 - 21
7/16-11/16 in
(11.1-17.5 mm)
10
5
3
6
4
6. Shift Arm
7. Cotter Pin and Washer
8. Adjustment Nut
9. Traction Drive Clutch
Cable
10.Shift Rod
Figure 14
1
2
OS3040