PS Magazine - TB 43-PS-721
PS, The Preventative Maintenance Monthly
ISSUE 721
DECEMBER 2012
34
PS 721
DEC 12
35
PS 721
DEC 12
M
echanics, the AN/APR-39 radar warning antenna connectors and receivers in
your helicopters shouldn’t be as tight as can be.
It doesn’t matter what aircraft you’re working on, these connectors and receivers
are always 8 lb-in of torque. Any more than that and you’ve got broken connectors
and wires.
For example, the antennas in the front of the aircraft and the APR-39 aft receiver
located in the Black Hawk tail cone get the same torque.
Problem is, mechanics use
a pocket tool when installing
connectors
and
usually
over-tighten them. If that
happens, you can kiss the
connector goodbye because
it
will
break, causing failures
in the system.
Using
the
wrong
tool
can cause damage. Always
use a torque wrench set to
8 lb-in to tighten connectors
and receivers.
All Aircraft…
Too Tight is
Too MuCh!
Use a torque wrench,
not
a pocket tool!
this pocket
tool is
quick
and easy
for
the apr-39
aft receiver!
All right, all right.
This isn’t fun anymore.
Here’s your stupid TM,
Lionel.
I don’t know why you
insist on carrying it around
with you if you already
know what’s in it.
it’s
always
best
to do
PM using
the TM.
I can’t
remember
everything,
Lucille.
not so
fast with
that pocket
tool.
you need a
torque wrench,
like this one,
for that job.
C’mon, Chuckie
Brown. Let’s go find
something better to
do. How ‘bout we kick
around your soccer
ball?
What a
great
dream! That
was a model
PM team.
bump!
721 34-35.indd
1-2
11/6/12
5:07 PM
Click here for a copy of this article to save or email.
Back to TopBack to Top
