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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 19, 20, 21 and 24)
1. Remove attachment drive belt (See
Remove Attachment Drive Belt on
page 22).
NOTE: To gain belt clearance, remove swing
gate spacer (Figure 22) so drive plate can be
slid over until finger is out of frame and drive
plate can swing past stop hole in frame. See
Figure 23.
2. Pull idler away from traction drive belt
and remove belt from idler, crankshaft
pulley and driven pulley (it may be
necessary to turn crankshaft pulley
using recoil starter handle).
3. Replace traction drive belt.
4. Swing drive plate toward friction disc to
slide finger into stop hole in frame.
Reinstall swing gate spacer.
NOTE: Make sure drive plate spring remains
connected to the frame and drive plate.
5. Replace attachment drive belt (See
Replace Attachment Drive Belt on
page 23).
ATTACHMENT CLUTCH/BRAKE
ADJUSTMENT
Remove Attachment Cable Slack
1. Remove the belt cover.
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.
Figure 22
OS8170
1. Swing Gate Spacer
2. Swing Gate Finger
3. Drive Plate
3
1
2
WARNING: 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.
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.
Figure 23
OS8068
1. Swing Gate
2. Swing Gate Finger
3. Drive Plate
3
1
2