Simplicity 1390 Snow Blower User Manual


 
Service
23
BELT REPLACEMENT
1. Turn off the engine, remove the spark plug wire, and
wait for all moving parts to stop. Rotate the spout full
right. Loosen the two screws (B, Figure 22) securing
the belt cover.
2. Tilt the cover forward and work it off the snowthrower.
3. Move the belt guides (B, Figure 23) by loosening the
two capscrews (A).
4. Remove the auger drive belt as follows:
a. Slip the auger drive belt (D, Figure 23) from the
idler pulley by pushing it away from the pulley and
then toward the rear.
b. Remove the belt from the engine pulley. Slip the
belt from under the brake pad.
c. Remove six capscrews from bottom cover to
snowthrower frame. Loosen nuts (A, Figure 24) on
each side to release auger pulley belt stops (B).
Move belt stops and remove belt from pulley (C).
d. Remove the two bolts (D, Figure 24) from the gear
assembly.
e. Loosen the set collar and slide the axle shaft right.
f. Belt can be removed from top or bottom. For more
clearance to remove the belt, engage the traction
drive lever.
5. Remove the traction drive belt as follows:
a. Pull the idler pulley (I, Figure 23) away from the
belt and slip the belt from the pulley.
b. Slip the belt off the traction pulley and then the
engine pulley. The arm for the front idler pulley (G,
Figure 23) may have to be pivoted to provide clear-
ance for removing the belt from the traction pulley.
c. Pull the belt out between the auger pulley (F,
Figure 23) and traction pulley.
Figure 23. Belts and Pulleys
A. Capscrews
B. Belt Guides
C. Traction Drive Belt
D. Auger Drive Belt
E. Engine Pulley
F. Auger Pulley
G. Idler Pulley, Auger
H. Traction Pulley
I. Idler Pulley, Traction
B
C
B
A
A
E
F
G
H
I
D
Figure 22. Belt Cover
A. Belt Cover
B. Screws
A
B