PS Magazine - TB 43-PS-675
PS, The Preventative Maintenance Monthly
ISSUE 675
FEBRUARY 2009
PS 675
39
PS 675
FEB 09
Art Benway
Ft Rucker, AL
Before operating the test set, Frst inspect the gaskets to see if they have abrasions,
tears, other damage or are missing. If they are damaged or missing, replace ‘em.
Always replace bad gaskets with the new gaskets issued with the set. If you
don’t have a service kit on hand, order the fuse kit, NSN 5920-01-437-2460, which
includes gaskets.
To extend gasket life and decrease chaFng when attaching test hoses to the set, apply a
light coat of silicone grease, NSN 6850-01-465-2261, to the gaskets.
After replacing the gaskets, run your leak test like it says in Chapter 2 of TM 43-4920-
910-12. If the test set fails, then turn in the set.
Never use teflon tape on the connectors if the set fails. That’s because bits of tape can
be drawn into the test set. Tape clogs the wire mesh Flters. And if the particles are small
enough, you’re looking at even more extensive test set damage.
Your unit’s wallet will take the hit on repair cost. So always inspect and check the set
before operating it.
M
echanics, the pitot static test set, NSN 4920-01-388-6790, shouldn’t be turned in for
repair for any old reason.
Too many test sets are being unnecessarily turned in for leakage problems. But the real
problem is not replacing damaged or missing gaskets on the Ps and Pt connectors.
Place search
lights on stand
Stand looks like
this when complete
mr. benway,
that’s a great
idea! looks like
you made a stand
on maintenance.
Ground
Support…
Pitot Static Test Set
Problems
we’ve got some
problems with
this set.
I bet
it’s the
gaskets.
let’s
check them
first.
Inspect test set before using
If unit leaks, check these gaskets Frst
675.38-39.indd
1-2
12/18/08
1:26:10 PM
A.B.
PS 675
Mr. b.,
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