Ski-Doo Formula 500 1998, Shop Manual

Page: 280 / 398

Section 07 REAR SUSPENSION
Subsection 02 (SC-10 SUSPENSIONS (ALL VERSIONS))
07-02-10
SHOCK ABSORBER INSPECTION
All Models Equipped with Hydraulic Shock
NOTE: Hydraulic shocks are painted black or dark
gray.
Secure the shock body end in a vise with its rod
upward.
1. Clamp
Examine each shock for leaks. Extend and com-
press the piston several times over its entire
stroke. Check that it moves smoothly and with
uniform resistance with its rod upward.
Pay attention to the following conditions that will
denote a defective shock:
– A skip or a hang back when reversing stroke at
mid travel.
– Seizing or binding condition except at extreme
end of either stroke.
– Oil leakage.
– A gurgling noise, after completing one full com-
pression and extension stroke.
Renew if any faults are present.
All Models Equipped with Gas Pressurized
Shock
NOTE: Gas pressurized shocks are light gray paint-
ed.
Gas shock can be inspected as follows:
Because of gas pressure, strong resistance is felt
when compressing shock. When released, the
shock will extend unassisted. Renew as required.
If suspecting an internal gas leak between oil
chamber and gas chamber, check shock as fol-
lows:
Install shock in a vise clamping on its bottom eye-
let with its rod upward.
Let it stand for 5 minutes.
Completely push down the shock rod then re-
lease.
Rod must comes out at a steady speed. If speed
suddenly increases particularly at end of exten-
sion, replace shock.
If suspecting a frozen gas shock proceed as fol-
lows:
Place shock in a freezer (temperature below 0°C
(32°F)) for 4 hours.
Push down on rod and note its resistance, com-
pare to a new shock. If shock is frozen it will be
much more difficult to compress than for the new
one.
25, Protector
At assembly, mount protector with its notch to-
ward front.
1. Notch
-
CAUTION
Do not clamp directly on shock body.
A14F0BA
1
A03F1RA
1