PS Magazine - TB 43-PS-417
PS, The Preventative Maintenance Monthly
ISSUE 417
AUGUST 1987
Electrical Systems .±²
IF
'O
DN'T
KEEP THe
REGULATOR
aJUSTEd, ±OU'LL
GET OVER OR
UNdERCHARGEd
1
-BATTERIES.
Mechs who fail to adjust their bird's voltage regulator priOicalLy are asking
Fr big time trouble.
An imProprly adjustE regulator
c
cause overchargiNg± The result wiLl B
ba²tery destRction and ³ssible helicoPter damage±
´aµa 3-4c of
T
11-6140-203¶14¶2 says that car·n¶PIe vol¸age regulators must
B checked weeKly or every 25 ¹ight hours, whºchever comes »rst, and adjusted
as necessary to compnsate Fr t¼mpr-
ature changes½
·
¾e ¿wer, solid sÀÁ ÂÃ should
Ä cheCked and adjustE every 120 days
or 1Å Æght hours±
When you adjust the reGuÇator to the
.±iI:
ambient È ÁmpÉÊ
²
your
a,
Ä sure you coNsider the average weeKly
temprature instead of a oneËDay hºgh
temprature.
hERE²S A TABLE FOR aJUSTING THE
VOLTAGE REGULATOR ACCORdiNG TO THE
AVERAGE GROUNd lEVEL
³MBiENT TEMPERATUR´:
T³MP
Above 80F
32F ´o µF
BeLow 32F
¶f·NG (O¸¹)
27 º 0»2
2¼ º 0½2
2¼¾5 º 0¿2
SeÌ your aiµCraÍÎs maºÏtenÐce
mu
Fr
PÑÒ
t
adjust ¸he ÓgUÇaÔr±
³
youµ ÕÖd's
mu
d×sN'Ø have the iÏfo you NÙ, go by
´
iNfo
² Pa
3¶28 of
T
55-15Ú2Û25/ 1Ü
40
SRU-À1 /p SurVIstÁÂÃÄÅÆÇÈÉ
Protect Your ProTection
\
µ
yoÝ ÞccidenßLy sPàL luÄ oáL,
g,
hydraulic ¹uid or âel on yoÝr Sãä-21/´
survival ves², tuå it
¶
and get a clean
one±
A
oæ- or âel¶soaked vest coulD
oçet èe éêëìtarDant Propríes oî yoÝr
ïomex ¹ight sÝit
²
a crash.
Yo
unð's
·
ñiîe SÝòó ôiõ
ment (AñSö) technician knows how to
clean your ves² withou² ruini÷g its øreù
reÀrút Pûpríes. üleaning insýons
¸ ¹ p
2-6 oîþ 55-ÿ6Ā3ÿ7-23&´ā
ĂÝt you
c
helP keeă yoÝr sÝrvival
vest
²
gĄ shaą by dry ĆRsHing i² wić
a soĈ Ćristle brush to remove
dº
dÝs²
and mud. And Ä careâl where yoÝ Pu²
your vest when you're not wĉ i².
Ċang it uă
¶
a clean, dry Place.
A±ION M SSaG s
CAT 1 EIR Phe
AUTOVON
692»6
(2¼ hr)
If your unit has not Received
a meA±ge you have an Inte²St
In, check with your next higher
headqua³e´.
½¾
±
S
,
Main! Mandto,
Remval Of cpFLOt/gunner b±DIng
step²
1615
²
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