Arctic Cat Sno Pro 120 Service Manual page 388

2. Pull the track away from the tunnel and spread open;
then place the skid frame into the track.
3. On the F, position the front of the skid frame into the
tunnel and engage the front arm with the slider axle
in the tunnel.
4. On the M and XF, secure the front of the skid frame
to the tunnel using the existing cap screws, flat wash-
ers, and lock nuts.
 NOTE: To aid in centering the front arm with the
hole in the tunnel, position the skid frame and track
at a 45° angle to the bottom of the tunnel.
5. Push the rear of the skid frame and the track into the
tunnel.
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6. Align the rear arm assembly with the appropriate
hole in the tunnel. Secure the rear arm assembly with
a cap screw, lock washer, and flat washer. AT THIS
TIME, TIGHTEN ONLY UNTIL SNUG.
7. Tip the snowmobile onto the other side; then align
the offset arm assembly with the appropriate hole in
the tunnel. Secure the rear arm assembly with a cap
screw, lock washer, and flat washer. AT THIS TIME,
TIGHTEN ONLY UNTIL SNUG.
 NOTE: Do not install the short legs of the rear
springs onto the adjusting cams at this time.
8. At this time, place the snowmobile to the upright
position; then tighten all cap screws to 40 ft-lb.
9. On the F, using the Rear Suspension Spring Tool,
install the short legs of the rear springs onto the
adjusting cams making sure the cams are in the same
adjustment positions.
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10. Adjust track tension (see Section 6) and track align-
ment (see Section 6).
After proper track tension and alignment have been
attained, make certain that the rear axle cap screws
tightened to specifications or component damage will
occur.
CAUTION