GB - 16
For Replacement:
1. Align shear bolt holes in auger with shear bolt
holes in the shaft.
2. Drive shear bolt through hole (if shear bolt was
broken this will drive remaining part from shaft).
3. Secure shear bolt with nut.
NOTE: DO NOT overtighten the shear bolt. Tighten
shear bolt to 5.8 – 12.2 lbf-ft (7.9 – 16.5 N•m).
DISCHARGE CHUTE DEFLECTOR
Deflector must stay in selected position while throwing
snow.
To adjust, loosen then retighten hardware to desired
deflector drag force (Figure 13).
DISCHARGE CHUTE
If chute does not stay in position while operating,
tighten nut on carriage bolt at pivot point to increase
tension on spring (Figure 14).
ATTACHMENT CLUTCH/BRAKE
ADJUSTMENT
1. Check attachment clutch lever measurement.
a. Start engine and run at full throttle.
b. Slowly squeeze the attachment clutch lever
until auger shaft begins to rotate.
c. Measure the distance from the end of the
clutch lever to the handlebar as shown in
Figure 15. The distance between the clutch
lever and the handlebar should be 5-5/8 -
6-1/4 in. (14.3 - 15.9 cm).
d. Shut off engine.
e. If clutch lever measurement is within
specified range, no adjustment is necessary.
If clutch lever measurement is outside the
specified range, follow steps 2 - 7.
2. Loosen jam nut on attachment clutch cable
adjustment barrel (Figure 16).
Turn adjustment barrel up the cable to decrease
the distance between clutch lever and handlebar.
Turn the adjustment barrel down the cable to
increase the distance between clutch lever and
handlebar.
Adjusting
Hardware
OS1113
Discharge Chute
Deflector
Figure 13
Figure 14
1. Carriage Bolt
2. Spring
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.
AVOID INJURY. Read and understand the
entire Safety section before proceeding.
CAUTION: The attachment clutch cable must
be slightly slack when the clutch lever is
disengaged. The attachment brake will not
function properly if the cable is too taut.
Attachment Clutch Lever
OS2490
Figure 15
(14,3 cm - 15,9 cm)
5-5/8 - 6-1/4 in.
Summary of Contents for 939001 ST520E
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