Roller Chain Replacement; Shear Pin Replacement - Simplicity 1691411 Operator's Manual

A
Place a block (approximately 4" high) under front
edge of auger housing or snowthrower will not
stand on end.
6. See figure 13. Loosen nuts holding lower belt guard
and slide guard away from belt.
7. Remove belt from between large pulleys.
13. Slide new belt onto pulley and position lower belt
guard to within l/16" - i/8" of large drive pulley.
Tighten nuts securing lower belt guard.
9. Return snowthrower to upright operating position.
10. Place new belt onto engine pulley.
11. Adjust guides as described under ADJUSTING BELT
GUIDES.
13. Connect spark plug wire and fill fuel tank.

ROLLER CHAIN REPLACEMENT

1. Remove gas from fuel tank and run engine until it
stops running from lack of fuel.
2. Disconnect spark plug wire and fasten it away from
the spark plug.
3. Stand the snowthrower up onto the auger end.
4. Rotate the wheel (figure 13) to locate the roller chain
master link (figure 14).
5. Remove the keeper link, master link and chain.
6. Install new chain and keeper link as shown in figure
14.
7. Return snowthrower to upright operating position.
8. Connect spark plug wire and fill fuel tank.

SHEAR PIN REPLACEMENT,

If the auger strikes an object which could cause damage
to the unit, the shear pin will break. This protects the
gear box and other parts from damage. The shear pins
are shown in figure 15. To replace, install a new shear
pin and cotter pin. Spread the legs of the new cotter pin
fully. Do not replace shear pins with bolts, screws or a
harder shear pin.
CAUTION
Figure 13. Lower Belt Guard
(Must install towards wheel side
Master link
Figure 14. Roller Chain Master Link
Figure 15. Shear Pin Replacement
1 3
Keeper link
with open end trailing.)
Direction of travel