Traction Drive Tension - Simplicity 960 Operator's Manual

Adjustments
7. If auger does not operate properly, stop engine and
recheck drive linkage adjustments.
8. If drive linkage is properly adjusted, auger drive belt
tension may require adjustment. See "Adjusting
Auger Drive Belt".
TRACTION DRIVE TENSION
Initial Adjustment
CHANNEL HANDLE MODELS
1. With the drive lever engaged, bottom end of lower
rod (D, Figure 21) 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.
.
Engage the drive lever to check the adjustment.
When correct, tighten the two nuts (B) against the
turnbuckle (C). Hold the turnbuckle (C) with pliers
while tightening the nuts (B).
TUBE HANDLE MODELS
1. With the drive lever released there should be no
slack in the cable when moved slightly from side to
side, but bellcrank arm remains in fully down position.
1. To adjust tension on the cable loosen adjustment hex
nut (D, Figure 22) by holding the adjusting flats (A).
Turn the adjustment screw. The adjustment screw is
a phillips screw and the head can be held or turned
by inserting a screwdriver through the traction drive
clutch cable spring
3. Engage the drive lever to check the adjustment.
When correct, tighten hex nut securely. The unit
should able to be pushed forward and back freely.
WARNING
Do not over=tighten, as this may cause traction
drive to engage without depressing the traction
drive control (bellcrank arm must remain in down
position).
Verify that the cables are not over-tightened: With
speed selector in position 1 and traction drive
control fully released, push snowthrower forward.
The unit should move forward freely.
if unit does not move forward freely, the cable has
been over=tightened. To remedy, loosen tension
on clutch cable slightly, and recheck.
®
Figure 21. Traction Drive Adjustment (Channel
Handle Models)
A. Upper Rod
B. Nuts
C. Turnbuckle
D. Lower Rod
E. Spring
Figure 22. Traction Drive Adjustment (Tube Handle
Models)
A. Adjusting Flats
B. Spring Hook
C. Bellcrank Arm
D. Nut
E. Adjustment Screw
Run-In Adjustment
ALL MODELS
.
After 5 hours of use, check for proper adjustment.
Readjust clutch cable if necessary by increasing ten-
sion on cable. A small amount of bellcrank arm
movement is permissible if unit passes operating
checks described in the Caution at left.
23