Suggested maintenance, Trouble shooting – Penske Racing Shocks 8900 Series User Manual
Page 16
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Suggested Maintenance
PRE RACE
.............................................................................................
Inspect for oil leakage. Check
the nitrogen pressure.
EVERY 30 HOURS OF TRACK TIME OR YEARLY
.............................
Change oil. Replace the shaft seal
o-ring, wiper, shaft bearing o-ring,
reservoir cap o-ring and piston o-ring,
floating piston quad ring, valve shims.
Trouble Shooting
LOSS OF NITROGEN PRESSURE
......................................................
Valve core is not tight or needs
replacing, o-ring on air valve
needs replacing, reservoir cap
o-ring needs replacing, leaking quad
ring, or dowty seal.
OIL LEAK AROUND SHAFT
..................................................................
Shaft seal o-ring or wiper
needs replacing.
Note: minimal oil seepage is normal.
OIL LEAK AT RESERVOIR
..................................................................
Teflon tape seal on hose needs
replacing, reservoir cap or CD
housing o-ring needs replacing.
OIL LEAK BETWEEN SHAFT BEARING AND BODY
........................
Shaft bearing o-ring needs
replacing.
SHAFT WILL NOT FULLY EXTEND
....................................................
Check for bent shaft, low nitrogen
pressure. Note: do not spray brake
cleaner or solvent on the shaft
wiper, it may cause it to swell
and prevent proper movement.