Arctic Cat Sno Pro 120, Service Manual

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7-22
MS289
MS016B
12. Install the articulating skid frame to the slide rails;
then secure with two cap screws and lock nuts.
Tighten to 20 ft-lb.
SC037A

NOTE: If the rear idler wheel was removed from the
opposite side slide rail, install the idler wheel and
secure it to the mounting block with cap screw,
washer, and lock nut. Tighten to 20 ft-lb.
SC038A
13. Install the skid frame (see Installing Skid Frame in
this sub-section); then install the rear arm springs
onto the adjuster blocks.
Articulating Skid Frame

NOTE: For the following procedure, refer to illustra-
tion 744-166A on the following page.
DISASSEMBLING
1. Remove the rear idler wheel cap screw (A), washer,
and lock nut from the cap screw side of the skid frame.
2. Remove the two cap screws (B) and lock nuts secur-
ing the articulating skid frame to the slide rail.
3. With the adjuster rod axle (C) in place in the adjuster
rods (D), remove the lock nuts (E) from the adjuster
springs (F); then remove the adjuster rods and axle
from the swing arm.
4. Remove the two cap screws (G) securing the rear
axle/idler wheel assembly to the swing arm; then
remove the idler wheels and account for the two
adjuster bushings (H).
5. From one side, slide the rear axle (I) out from
between the swing arm and account for the two idler
wheel spacers (J) and two washers (K).
6. Remove the two cap screws and lock nuts (L) secur-
ing the adjuster blocks (M) to the swing arm.
INSPECTING
1. Inspect each idler wheel and plastic hub for cracks or
damage.
2. Rotate the idler wheel bearings (by hand) and inspect
for binding or roughness.
3. Inspect all bushings for wear or damage.
4. Inspect all weldments and the tubing of the arms and
spacers for cracks or unusual bends.
5. Inspect the track bumper guides for wear.
6. Inspect the axle surfaces for any signs of corrosion.
If corrosion is found, lightly buff the surface of the
axle with #400 wet-or-dry sandpaper; then apply a
light coat of grease.
ASSEMBLING
1. Install the adjuster blocks (M) into the swing arm;
then thread the two cap screws with lock nuts (L)
into the blocks.
2. Slide the rear axle through one side of the swing arm
and through a washer (K) and an idler wheel spacer
(J); then in order on the rear axle (I), install the cen-
ter idler wheel, the remaining spacer (J), and washer
(K). Continue to slide the rear axle through the other
side of the swing arm.
3. Slide an adjuster bushing (H) on each end of the rear
axle making sure the bushings are properly positioned
to the adjuster bolts; then secure each rear axle idler
wheel with a cap screw (G). Tighten only until snug.