PS Magazine - TB 43-PS-593

PS, The Preventative Maintenance Monthly

ISSUE 593

APRIL 2002
PS Magazine - TB 43-PS-593 - Page 22 of 32
Javelin Missile System…
Check for Bad CLU Seal
D
efective interfacial seals for the Javelin missile system's command launch unit
(CLU) round interface connectors have gotten into the field. The seals begin to
come apart after only a few uses of the CLU, causing BIT failures and no commu-
nication between the CLU and the field tactical trainer or the Javelin round.
All Javelin units should immediately check all CLU round interface connectors—
including spares—for the defective seal. Remove the protective cap from the con-
nector and check the seal between the outer sleeve and the green barrel plug. If the
seal is gray or translucent, it's OK. If the seal's red or orange, it needs to be replaced.
Tag the connector as defective and order a replacement connector through
JAVTRAK, the Javelin requisitioning system, with NSN 5935-01-474-6361. After
June, 2003, order the seal through the normal supply system.
PS 593
APR 02
42
N
obody likes being squeezed into a tight place. The W19P2 and W20P2 power
cables on your MLRS launcher are no exceptions.
Unfortunately, those cables have no choice. When they’re connected, the bottom
part of the cables have to be squeezed into place. That crimps the cables and even-
tually wears out the insulation.
If the cables short out, you lose electrical power to the boom and the cables have
to be replaced.
You can prevent that problem by giving the cables a little extra protection. Slip a
length of 1-in diameter heat shrink tubing, NSN 5970-00-815-1300, over each of the
cables where they are bent. Use a heat gun or a blow dryer to shrink the tubing
in place.
The tubing protects the cables’ insulation and keeps power flowing to the boom.
Connected cables
are crimped…
…and insulation
is damaged
hey, How about
a little help? my
m19p2 and w20p2
cables are gettin’
pinched!!
I’ve got
just what
you need
right
here!
Fire!
Fire!!
Fire!!!
why
aren’t
you
firin’?
I
would
… If
my interface
seals weren’t
defective!
Good seal
is gray
Defective seal is
red or orange
MLRS Launcher…
593. 42-43 (C)
3/5/02
11:08 AM
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