AD Boivin 2002 Snow Hawk, Service Manual

Page: 125 / 173

REAR SUSPENSION, SHOCKS AND TRACK 12 - 17
MISCELLANEOUS INFORMATION
o
Never replace nitrogen by another gas. Nitrogen was
chosen for its qualities as an inert gas: since it is dry (no
humidity) it does not contaminate the gas chamber of
the shock absorber.
o
When stacking shims, 2 thin shims stacked together are
as thick as one thick shim, but offer less resistance than
the latter. Refer to the table SHIM EQUIVALENCE FOR
THE SAME DIAMETER as illustrated in this section.
o
When stacking shims for rebound, always use shims
measuring 22 mm (1.02 in) in diameter against the
piston. Use at least 3 shims for the stack to avoid
bending or breaking. Leave a play of about 0.203 mm
(0.008 in) between the stacks of shims and the lock nut
washer.
o
When stacking shims for compression, always use
shims measuring 30 mm (1.181 in) in diameter against
the piston. Use at least 3 shims for the stack to avoid
bending or breaking. Install at least one washer
measuring 0.114 mm (installing 2 or more of them is
recommended) between the stack of shims and the lock
nut washer.
Thickness
mm
0.114 11 5.6 2.4
0.152
4.7 2.4 1
0.203 2 1
0.254 1
Shim equivalence for the same
diameter
Quantity of shims