PS Magazine - TB 43-PS-572
PS, The Preventative Maintenance Monthly
ISSUE 572
JULY 2000
PS 572
17
JUL 00
PS 572
16
JUL 00
MLRS . . .
Know Where to Hang Your Helmet
MLRS drivers, where you hang your CVC helmet is important, especially
during launcher reload and other times when the engine is running.
If you’re in the habit of hanging your helmet on the steering yoke,
stop!
The weight of the helmet pulls the steering yoke to one side. That tells the
transmission to turn the vehicle, wearing out the transmission disconnect clutches.
If the engine’s running, put your helmet on the seat, on the floor, or better yet,
keep it on your head. Just don’t hang it on the steering yoke.
Then, spray the connector with
cleaner, NSN 6850-01-453-5703. Or-
der it on a DD Form 1348-6 and
put “NSN not on AMDF” in the RE-
MARKS block.
Spray it on and let it sit for a minute
or two, then lightly scrub the connec-
tor with a foam swab. A box of 50
swabs comes with NSN 7045-01-154-
1317.
If the BIT light still comes on after
recycling the system, call in your
mechanic.
Unhook the connector indicated by
the BIT light and use an air hose to
blow out loose sand and dirt. Keep the
air pressure to 30 psi or less, though,
to protect the connector.
...could be caused by dirt in connector
BIT warning lights on fire control panel.
..
Spray connector with contact cleaner
what
the.
..?
another
bit light?
what do
you expect? you
never clean
the
contacts
!
well,
i'll just
talk to the
mechanic.
what do
you expect? you
never clean
the
contacts
!
hmmm.
..
where have
i
heard
that
before?
a short
while
later.
..
PS 572
17
JUL 00
rivers, are you getting lots of built-
in-test (BIT) light warnings on the fire
control panel of your MLRS? If so,
chances are the problem is sand and
dirt, not a malfunction.
When enough dirt gets inside your
vehicle’s electrical connectors, the BIT
lights signal a problem. Before you call
in your mechanic to troubleshoot, try
cleaning the connectors. Here’s how:
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