PS Magazine - TB 43-PS-441
PS, The Preventative Maintenance Monthly
ISSUE 441
AUGUST 1989
oading a TOW round-real or train±
ing-that has a bad missile tube will
quickly send your TOW system dowN
the tuBes.
A
bad tube can cause everything
fom a hang Fire to a shoRted²out mis³
sile guidance set or command guidance
electronics ´Lex haµess. ¶ut you can
weed out bad tubes with just a ·w
quick checks.
[EyebaLl the eLectrical coNnector.
I´ the black ring's dented or out¸o´±
round, or the center pin's bent or the
green covering's cracked or missing,
the electricaL conNector's bad. DoN't
use the round¹
Black ring dented?
Center pin bent?
Green coveRing
cracKed or missing?
On training rounds, peel o´´ every
bit o´ aluminum LaBel oN the coNnector.
Even a little piece o´ the label can burr
and peel. Push down oN the rubbºr de»
tent cover to make sure the deteNt
spring and sheared plunger have beeN
removed¼ ½´ the cover doesN't spring
back, they've been removed.
¾abels and sheared plungers preveNt
a good electrical conNectioN aNd cause
Major damage to TOW com¿oneNts
and
even
the
vehicÀe
the
ÁOW's
Mounted on.
Eyeball the MouNting bracKets ÂN
the middle o´ the tube Ãr chippiNg and
the aligNmeNt studs at
Ä
the foNt ´År
dents or slippage. ½´ you ´iNd aNy prob±
ÀeMs, turn iN the tube. Æhe tuBe has to
18
aUG 89
´it in the launcher tight or the missile
and
LauNcher
electricaL
connections
can't mate ´År ´iring.
Studs
dented or
sLipping?
½nspect the foNt aNd rear dia±
phragms on live rouNds Ãr tears.
A
torn diaphragm lets Moisture iN that
damages Çhe Missile's electroNic com±
¿oneNts.
Diaphragm
torn?
aUG 89
19
ÈaKe sure the humidity indicator
is blue. ½´ it's pink, moisture's already
gotten in the tube.
ÉProtect the missile rounds. Êeep
the electrical connectors' protective
covers,
ËSË
±440-00²444²0563,
screwed on. Ëever roughly handle live
or traiNiNg rounds. Ìeep them strapped
Ân their racks during transport.
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