QMS - CTL
Shock Mitigating Pedestal
Operation & Service Manual
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R-05 / Jan 2021 / 1 of 2
Step 1
Choose a starting pressure, rounded to nearest 5 psi, based on the expected average operating
conditions and the “suspended weight” (the
combined weight
of the seat mounted atop the
pedestal, including any accessories, and the weight of the occupant).
Step 2
Get the isolator moving by bouncing in the seat a few times, then service the pressure in the
isolator using the side access port or the bottom access port
without occupant or extra weight
in the seat
. See the
Recommended Service
section for details on servicing the isolator.
Step 3
The intended occupant should take a seat normally, and
then step out and inspect the indicator O-ring on the upper
tube of the pedestal against the markings engraved in the
side, as shown on the right (
NOT TO SCALE
).
The indicator should be at or below the
STATIC LIMIT
line
on the seat. If the indicator is above the static limit, then
increase the pressure of the isolator by 5-10 psi (up to a
maximum of
150 psi
), return the indicator O-ring to the
bottom of the tube and repeat the test.
