PS Magazine - OCTOBER 1984
PS, The Preventative Maintenance Monthly
ISSUE 383
OCTOBER 1984
1
M1
Tanks .±.
Turret mechs, a missing
$±.03
0-ring
could cause the filure oF the
$33,000
laSEr rangeFinder
(LRF)²
Check your ±ank's
LRF
as soon as
you can ²r the 0³ring packing between
the
LRF
objective lens and the gunner's
primary sight (GP´) asseMbly window.
Check
beteen
LRF
and
GPS for
missing
³-ring
IF the 0µring is missing, dirt and
moisture can build up on the
LRF
l¶ns
and cause damage during Firing.
Check FOr the 0·ring like this:
v
Loosen the¸R¹ mounting screws
and lower the
LRF
a couple oF inchesº
IF the 0»ring is in place around the
18
obJective l¶ns, replace the
LRF
and
tighten the screws.
IF the 0µring is missing, orDer N´N
5330´0±´080´7973µ
It's Item
25
oF ¹ig
86
in T¼
9´2350´255´20p´2¶
v
When you get the 0½ring, ±ake th¶
LRF
completely o¾F its mount. Clean
th¶ obJective lens and the GP´ assembly
window. Use the brush, cl¶aner and
l¶ns paper that's part oF th¶ ±ank's B¿À.
v
Install
the
0³ring
around
the
obJective lens. Then reinstall the
LRF·
OCt
±4
Toxic Fume Warning
Beware, ±aÁ cr¶ws, that you donÂt
fll victim to carbon monoxid¶ poisonÃ
ingÄ It can happen!
The ±urret blow¶r system in your ¼Å
must be working during any main guÆ
or
coax
machine
gun
Firing
while
you'r¶ buttoned up.
The turret blower is designed to com¶
on automatically
when th¶ weapon
(
selector switch is turned to CÇAX. IF
it doesn't, have your m¶ch Fix it now.
It's also a very gooÈ idea to run the
blow¶r when Firing with Hatches op¶n.
This is because odorless, colorless
carbon monoxide is present not only in
vehicl¶ and heater exhaust gases but in
spent ammo gases, too.
Éon't try to use your protective gas
mask as a substitute For turret blow¶Ê
ventilation. You could end up dead. The
mask will FËÌter out gases that smell, but
it lets deadly carbon monoxide com¶ on
tHrough.
Tak¶ the saÍ road. Run the blower
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