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GB - 23
6. Adjust clutch per Attachment
Clutch/Impeller Brake Adjustment below.
7. Replace chute crank and secure with
spring pin.
8. Replace belt cover and secure with
screws.
TRACTION DRIVE BELT
REPLACEMENT
NOTE: Housing and frame must be tipped
apart and attachment drive belt removed from
engine sheave in order to change traction
drive belt (Figures 17 & 18).
1. Remove attachment drive belt (See
Remove Attachment Drive Belt).
2. Pull idler away from traction drive belt and
remove belt from idler, camshaft pulley
and driven pulley (it may be necessary to
turn camshaft pulley using recoil starter
handle).
NOTE: To gain clearance, engage traction
clutch and if necessary pull back attachment
brake/idler arm.
3. Replace traction drive belt.
4. Replace attachment drive belt (See
Replace Attachment Drive Belt).
ATTACHMENT CLUTCH/BRAKE
ADJUSTMENT
1. Remove belt cover.
2. Adjust cable slack (Figure 19).
IMPORTANT: The clutch cable must be slack
when 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.Finger tighten the jam nut and then
turn back the adjuster body 2 turns.
d.Hold adjuster body with pliers and
tighten jam nut with wrench.
3. 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 –3/8 in. (4.7–9.5 mm) longer
when the lever is engaged.
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.
OS6810
Figure 18
1. Belt Finger
2. Attachment Drive Belt
3. Traction Drive Belt
4. Camshaft Pulley
5. Traction Belt Idler
6. Engine Sheave
7. Attachment Pulley
8. Attachment Belt Idler
1
2
3
4
6
5
7
8
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/Impeller Brake lever is
released.
WARNING: Adjustment procedure
requires the engine to be run with
the belt cover off. Read, understand
and follow all Operational, Fuel and
Maintenance and Service Safety
Rules before adjusting your unit.