Ski-Doo FORMULA S 1997, Shop Manual

Page: 919 / 926

SHOP MANUAL SUPPLEMENT
MX Zx 440 LC
PAGE 14 OF 18
NOTE: Fast installation of the damper rod may
displace the floating piston from its original posi-
tion. Do not allow this to occur.
Reservoir Floating Piston Final Check (before
damper seal carrier installation)
Perform a final check of the floating piston posi-
tion (43 ± 2 mm (1-11/16 ± 5/64 in)):
– If floating piston is positioned 41 mm and less.
Apply pressure on floating piston to position
floating piston to a depth of 43 mm (1-11/16 in).
– If floating piston is too far (45 mm and more).
Move damper rod with fast movement to allow
oil to transfer from damper body to reservoir.
Floating piston will move back.
Damper Final Assembly
With damper rod piston into oil volume, re-top
damper oil volume. Oil level should be to damper
body thread base.
Seal carrier assembly can now be threaded into
damper body. This should be done slowly to allow
weepage of shock oil from body while installing.
NOTE: When reinstalling seal carrier, oil must
overflow. This overflow indicates that damper is
full of oil.
Reservoir Final Assembly
NOTE: If all previous procedures have been prop-
erly performed, final floating piston position
must be 40 ± 2 mm (1-9/16 ± 5/64 in) . Final float-
ing piston position must be measured after damp-
er seal carrier assembly has been completely
threaded.
Reinstall reservoir cap assembly with circlip then
install air valve.
Gas Pressure Adjustment
Nitrogen (N
2
) can now be added to reservoir body.
Preset pressure regulator to 2070 kPa (300 PSI)
nitrogen (N
2
), this gas pressure will restore the
correct pressure for the damper.
1. Valve tip (Nitrogen)
2. Reservoir cap assembly
NOTE: Carefully inspect damper for gas or oil
leaks. Any leaks must be corrected before con-
tinuing.
Damper gas pressure can be confirmed by using
a pressure gauge available through your local in-
dustrial gas supplier.
-
CAUTION
Do not exceed the recommended pressure
value.
◆
WARNING
Whenever working with high pressure gas,
use eyewear protection. Never direct gas
pressure toward anybody.
A15F3OA
2 1