GB - 21
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 20 and 21).
1. Shut off engine, remove key, disconnect spark
plug wire and allow unit to cool completely.
2. Remove attachment drive belt (See Remove
Attachment Drive Belt on page 20).
3. Push the traction drive belt off the engine pulley
toward the engine as shown in Figure 23.
NOTE: To make belt removal easier, slowly pull the
recoil starter while pushing the traction drive belt off the
engine pulley.
4. Remove and discard traction drive belt from the
unit.
5. Place new traction drive belt on engine pulley
between the engine and pulley groove as shown
in Figure 23.
6. Place new traction drive belt on transmission
pulley.
7. Push the new traction drive belt onto the grooves
in the engine pulley.
NOTE: Slowly pull the recoil starter while pushing the
traction drive belt onto the engine pulley. Make sure the
belt seats properly in the grooves of the transmission
and engine pulleys.
8. Replace attachment drive belt (See Replace
Attachment Drive Belt on page 20).
9. Check traction drive clutch adjustment. See
Traction Drive Clutch Adjustment on page 19.
SHORT TERM
IMPORTANT: NEVER spray unit with high pressure
water or store unit outdoors.
Run with attachment clutch engaged a few minutes
after each use to free unit of any loose or melting snow.
Inspect unit for visible signs of wear, breakage or
damage.
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
1/8 to 3/16 in.
(3.2–4.8 mm)
1. Belt Finger
2. Belt
1/8 to 3/16 in.
(3.2–4.8 mm)
STORAGE
WARNING: AVOID INJURY. Read and
understand the entire Safety section before
proceeding.
Figure 23
Position the traction drive
belt on the engine
sheave like this when
removing and installing it.
