PS Magazine - NOVEMBER 1978
PS, The Preventative Maintenance Monthly
ISSUE 312
NOVEMBER 1978
I
l
Take care of your aircraft's
AN/PRC-90 radio set. It can save
yoUr liF.
The radio is pa±t of Your survi²
val Kit. Its only job is to le³ res²
cuers Know where you are if your
cra´ goes down. Ifit won't do that,
you're in a heap of trouble.
If you're not µnd of trouble,
latch onto a copy of TM 11¶5820-
800-12 (·ov 73). Inspection
checKlists begin on page 4-2.
Pay particular attention to the
ba³tery and radio set tests. ¸ou do
them monthl¹
T
tes³ ºoUr BA¶1568/» ba³³ery,
YoU need TS¶2530/»R (·S·
6625-00-933-6112) o± TS¶2¼30A/
»R (·S· 6625½0¾¿ÀÁÂÃÄÀÀÁ).TM
ÅŶ66À5-2Æ31-14 (NoV 73) speLls
out ³eÇt ȱocedU±EÉÊ WËÌH ÍÎÏ
2¼Á0/»Ð UÇe Ìes³ ÑdÑȳe±
MX-
ÂÂÄÅ/ÒÐÓ (·S· 66À¼-Ä0-Ô80-
6Á1¼)Õ
Always do ³his teÇt Örst. ·o
sense wasting time checKing a
radio set with a bad batte×
ØÙre'±e some things to looÚ Ûr
beÛre or during testing.
Is theÜe liqÝid on either end of
the bat³ery? If so, turn it in and get
another. Þf You ßnd white càstals,
wipe 'em oá. The battery's still
good.
When hooKing up the âãt³ery
ä
³ester, watch positive aåd negÑ-æ
³ive hooKups. ¸oU caå ruin a test
sç³ if You don'³.
·ow ³Ha³ yoU've go³ the âa̳e±Y
oU³, give ³He raDËo's coå³roLs ³He
once over. Run through the dièer²
ent settings. ChecK ér chipped
paint, êaded symbols or other
damage. ëyeball the MCì and
L_±.-
E:e3C²³´µ¶·¸'
íush¶to¶talK switch covers ér
Is the battery 3 years old or
cracKs.
older? Get another. The date's
T
test your set's traåsmittiîg
stamped on the side.
and receiving, you use an A·/
ïinally, eyeball the âat³erY
PRM-32 radio test set (NS·
compartment and contacts Ûð
6625-0080ñ¶3399òó The pub is TM
corrosiQn.
_
ôõ6625¶2632¶14 (öec 73).
·othing complicated here.
÷eep in mind that several øunÚed
radios ùight mean a bad ³est set,
thoú
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