Simplicity 1390 Snow Blower User Manual


 
Adjustments
20
Figure 15. Speed Selector and Auger Drive Linkages
A. Turnbuckle
B. Spring Hook
C. Lever
D. Carriage Bolts
E. Lower Rod
F. Nuts
G. Nuts
Figure 16. Drive Tension Adjustment
A. Upper Rod
B. Nuts
C. Turnbuckle
D. Lower Rod
E. Spring
A
G
D
F
E
F
B
B
C
B
A
E
D
C
SPEED SELECTOR ADJUSTMENT
1. Loosen the two nuts (F, Figure 15).
2. Place the shift lever in 5th gear.
3. Push the lower rod into the housing and tighten the
two nuts. Do not lift up or down on rods while tighten-
ing. Make sure the shoulders of the carriage bolts (D)
are in the slots.
4. Always check traction drive tension and auger drive
tension after adjusting speed selector.
AUGER DRIVE TENSION
1. With the drive lever released, the hook (B, Figure 15)
should barely touch the lever (C) without raising it.
There can be a maximum 1/32” clearance as shown.
2. To adjust, loosen the two nuts (G) and hold the lower
rod to keep from rotating. Turn the turnbuckle toward
the right to lower the spring, or toward the left to raise
the spring.
3. Tighten the two nuts against the turnbuckle. Hold the
turnbuckle with pliers while tightening the nuts.
TRACTION DRIVE TENSION
1. With the drive lever engaged, bottom end of lower
rod (D, Figure 16) should be flush with bottom of
spring (E).
2. To adjust, loosen the two nuts, (B) and hold the
lower rod to keep from rotating. Turn the turnbuckle
(C) toward the right to lower rod or toward the left to
raise rod.
3. Engage the drive lever to check the adjustment.
When correct, tighten the two nuts against the turn-
buckle. Hold the turnbuckle with pliers while tighten-
ing the nuts.