Arctic Cat Sno Pro 120 2011, Service Manual

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FS008
4. Clamp the body of the shock securely in the vise
with the open end of the body facing up.
5. Lubricate the IFP O-ring with assembly lube and
wrap a new piston ring around it.
6. Insert the IFP into the shock body (with the dished
side facing up toward the open end of the shock
body) to just below the bearing threads.
FS015
7. Using Floating Piston Installation/Location Tool,
install the floating piston while using the inflation
needle to vent the shock body.

NOTE: Refer to the Shock Absorber Specifications
sub-section in Section 1.

NOTE: Depth is measured from the edge of the
body opening to the outside edge of the IFP (not the
center depression of the IFP).
8. Lubricate the O-ring on the nitrogen valve with assem-
bly lube and thread it into the body. Tighten securely.
FS014
9. Fill the body tube with oil to the bottom of the bear-
ing threads. Wrap the new piston band around the
piston making sure the rounded edges face out. Insert
the shaft assembly into the body tube. Slowly push
shaft into body until piston assembly is approxi-
mately 0.5 in. below the oil surface.
10. Slowly stroke the shaft assembly up and down over
about a 1-inch range two to three times being very
careful not to pull the piston assembly out of the oil.

NOTE: At this point, there should be no air bubbles
rising from the piston assembly.
11. Top off the shock body with oil and slowly pull the
shaft up until the piston assembly is about in the mid-
dle of the bearing threads.
12. Holding the shaft in that position, slide the bearing
assembly down the shaft and start threading it into
the body by hand. Oil should flow out of the bearing
bleed hole.
13. As the bearing assembly is being threaded down, it
will contact the damping piston assembly and pull it
down into the shock body with it. As the bearing is
being threaded in from this point, be sure the damp-
ing piston assembly stays in contact with the bearing.
14. When the bearing is threaded all the way down,
thread the bleed screw into the bearing assembly and
tighten it securely.
FS013
15. Tighten the bearing assembly into the body.
FS006
16. Push the shaft all the way down until the eyelet
lightly contacts the FIST scraper on the bearing
assembly. It should go all the way down without any
feeling of contact or interference.
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