PS Magazine - DECEMBER 1980
PS, The Preventative Maintenance Monthly
ISSUE 337
DECEMBER 1980
-=±:²³´µ¶·
Abuse any aircraft armament sUb-
system
and
it
woN't
perform
as
advertised .
.. coUld be embarrassing!
Take the 20-MM ML97 cannon In
yoUr
AH±LS
(ECAS)
and
AH²LS
(ModernIzed).
Some troops walk by and spin the
barrels³in the wrong directIon, No
less´
What happens when yoU tUrn the
barRels
the
wrong
way
(couNterclockwIse
as
yoU
face
the
weapon)? Plentyµand it's all bad¶
The
bolt
roller
hits
the
locking/unlocking ca· where it¸s not
beveled. You could get a brokeN bolt or
break the firing contact.
At the ve¹y least, the cams get
goUged or chipped. ºf stoning or other
corrective action won»t restore the
cam
to
service,
parts
have to be
replaced.
Fact is, damage coUld resUlt to aNy of
the related parts¼items 6, 7, 9 IN Fig
3½18 of TM 9²1090²206²12 ¾draf¿)´
Àhe Caution on page 3²135 of the
weapons
pub
says
nobody
shoUÁd
rotate the barrels coUnterclockwise.
Hands
off the
barrEls
_, .¸¹ º»
--
¼½
38
ÂCoUrse, oNly armorers should handle
that baby.
p
!iI±
:²
³´
atd 'nur ±tep!
Pilots
and
crew
chiefs roUtineÃy
climb around the Cobra to pUll their
PM inspections.
±²
gunner won't be able to hit the broad
side of a barn because the boresighting
will be thrown off.
When the disposable 2´75-in rocket
launcher hits the field, yoU really Äave
to watch yoUr step. That ligÅtweIght is
made of thin aluminum and any foot
pressure will dent itÆ
So give those launcÅers plenty of
room´
Mount
yoUr
bird,
step
in
thÇ
designated areas on tÅe wing, and
watch yoUr gunnery scores improve.
39
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