PS Magazine - DECEMBER 1980
PS, The Preventative Maintenance Monthly
ISSUE 337
DECEMBER 1980
OK,
YOU
CHAPaRr±L TYp²
hE³e'S
SoME
Mo´µ INF¶ t·¸¹ºl»
¼½¾¿ kÀÁ y¶Uà GuÄÅD ÆÇ
•.±
ir J ilters
When you reinstall the air con-
ditioner Air fiLters for the gunner's
l-7r;:L±²³´µ
"/
compartment, keep the fiLter arrows
pointing toward the compartment.
That'LL give maximum air fLow for
the gunner, the air conditioner will
give peak performance± and the
gunNer can do his job safeLy and
;
comfortably.
I• :±
.-±²³´µ¶·¸¶¹º
»!¼½¾
¿ÀÁÂÃÄűÆÇÈÀÁÉ
1:
'ÊËtÌ
²he system works best on matched sets of lead³acid bAtteries. Perfor´
mAnce falls off when bAtteries are in
different states of charge.
±
IdeaLly± when you install batteries±
.)±
each one should haVe an electroLyte
¶
specific graµity reaDing of 1.280 (1.225
in the tropics) on your opticaL anti¶
freeze/battery tester.
·eµer install a battery with a
reading under 1¸225 (tro¹ics± 1.180). If
it won't charge to 1.225± re¹lace itº
² j ³ 'R4ermnsTaT
Wiring to the MPU thermostat shorting. » shorted wire wi¼l ¹ut the
switch must be coµered with Asbestos MPU down.
sleeµing .
.. to keep the wiring insula¶
tion from melting and the w½re from
If you don't know asbestos± look for
a gray± Fuzzy coµer oµer the wire. If the
wire doesn't haVe the sleeµing± request
it from maintenance¾
»nother MP¿ wiring sleeµe to look
For is on the w½re that Runs from the
MPU to the
ÈÉ
relay.
The sleeVe is a heatÀshrink ¹lastic
type± and without it the wire will short
and blow the
ÈÊ
relay.
Your su¹¹ort insta¼ls the sleeÁe.
´im
CurtaiNs
When you store the flotation
If you place them topside down on
curtains or remoµe them in the field± the ground± concrete or whateµer± the
keep the top side up. Âet the curtains ceiling side will rub into the whateµer
rest on the underside.
and you'll ruin the seal.
-
ir <Lnm
E
resSnr
Âike an echo± the word has bounced
off waLls± ears and eyes for years: ÃO
·OT USE 30W OIÂ I· THE »IÄ
COMPÄESSOÄ!
Âike clockwork± compressors are
damaged or destroyed because some
crewman didn't haµe time
(he
thought)± or didn't want to get the oil
especialLy designed for the comÅ
pressor.
Once again: UseÆÇÈÉBMS 3Ê7 » oil±
·SË 9150Ì00Ì753Ì4667± in the com¶
pressor. It will not break down under
use. That 30 W automotiµe oil wi¼l.
LuBe ²iL C²mPRess³r
Bms 3-7Ë
9150Ì00ÍÎÏÐÌ466Ñ
SIE WBRKTiNG OÍL
_´µ¶·¸¹º ,.» ¼½
_
»gain± substitutes cause expensiµe
and extensiµe damage.
Äemember, too: Check the com¶
pressor oil leµel before and after each
operation. That's spelled out in Table
3Í1 of TM 9Ì1425Î586Ì10.
The Cha¹arral track shakes± rattles
and rolLs things Loose. That's why
eVerything should
b
strapped down±
espec½aLly your expensiµe »·/GÄ»Ì
39 radio set controL grou¹ in the rear
electrical compartment.
The GÄ»Ì39 should be seÏured
with the strap proµided before you get
undeRway. Otherwise, it'll fall off the
radio set and damage itself and other
equi¹ment.
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