PS Magazine - TB 43-PS-589
PS, The Preventative Maintenance Monthly
ISSUE 589
DECEMBER 2001
PS 589
DEC 01
37
Jam Test
The ILCA jam simulator buttons are hard to get at, so some
folks even use a screwdriver or other hard metal tool to press
them down.
Hard metal or sharp tools damages the plunger and seals of
the jam simulation buttons or mushrooms them out of their
close installed tolerance, making them stick.
If an ILCA jam simulation button gets damaged and can’t
be reset, AVIM has to replace the entire actuator assembly.
Instead of using hard metal or a screwdriver, press the
buttons with a tool of wood or soft metal—like aluminum
or brass.
One unit made a tool out of scrap aluminum. It has a golf
ball for a grip and is flattened on the other end. Always wipe
the ILCA jam simulation buttons with a clean cloth before you
press them. That keeps dirt from getting into the assembly.
PS 589
DEC 01
36
CH-47D…
Pass the
J
amming is for basketball, repairers, not for the ILCA jam simulation buttons on
your Chinook.
The ILCA jam simulation buttons are pushed prior to the first flight of each day
to make sure the red jam indicators are working. In operation, the red indicator but-
ton pops out automatically when there’s a problem in the flight control closet.
Check out
Task 7-104.1 of
TM 55-1520-240-
23-6 for
details if your
bird
fails
the
jam test.
Pressing ILCA jam
simulation button…
Sergeant,
we’re
ready to
take off!
Did you do
the
ILCA
jam test?
…should cause red
indicator to pop out
yeah…
press my
Ilca
button
in the flight
control closet
before
you
go, buddy.
but, lay
off the
heavy
metal!
589. 36-37 (C)
10/25/01
6:14 PM
Page 1
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