PS Magazine - MARCH 1981
PS, The Preventative Maintenance Monthly
ISSUE 340
MARCH 1981
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!1
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PoLar±ty
²
and Your ALteRnatoR
You can light a lamp usIng only a
w±re from the baTTery posItIve(+) posT
To The bottom of The lamp base and
then touchIng the sIde of The lamp
base To clean, bare meTal almosT
anyplace oN your equIpmenT. (Or you
cAN make the posItIve(+) connecTIon
at the sIde of the lamp base and then
ground The boTtom of the lamp base²
Most-but noT all³of The elecTrICal
components In your equIpment wIll
work eITher Wa .
±²:
The direction of current
flow makes no diFference
in some electricaL
components, like
³
lamp.
eq ®¢Q
1
@
e
But there are o±her components
witH a set "poLarity²³ Current
must flow thru in ONly oNe Direction´
Your aLterNatOr is one
thiNg that caN't take
"REVERSE
Pµ¶ARI·Y³ ²²²
Battery cabLes or jumper
cabLes hoOked Up wrong
can cause damage
to the alternator!
CLeaN!
BaRe´
Tµgh¶´
One of The ´oST common causes of
elecTrIcal problems In your equIpmeµT
Is poor groundIng. EITher The ground
connectIon Is loose or There's
¶
dIrT,
paInT, grease, rus
·
T or corrosIon In The
connecTIon.
Ele¸TrI¸ITy can'T geT a¸ross! ¹He
eleºTrI¸al cIrcuIT Is noT ¸ompleTe. »T's
lIke a sWITch In THe OFF posITIon¼
½hen
you've
goT
eLe¸TrIcal
¸n¹ reMEmºEr »»¼ ½¾e
proBLems, aL¾ays ¸HecK To maKe sure
elect¿icaL GroUnd S±Àr±SÁ
THe ¸ompoµenT you're Tr¿uBLesH¿¿ÀIng
¿iGh± there w¾Ere ÂoU¿
Is pr¿perly grounDed³a TIGHT ¸onne¸Á
ºat±erÂÃS neGÀtive (-)
TIon Ào ¸lean, bare meTalÂ
cÀºle ¾ookS uÄÅ
You'll
.
save yourself a lot of time ±n' sweat-aNd yoU²ll save
U
nDe the cost of
Cmponents that don't have to
b
replaced³
Best of all, you´ll get your equipment back iNto actionµ
24
-±²³´µ¶
Æil pressure gage
ÃhIs showed up wheÄ the headshed
goT a bunch of oIl pressure gagesÅ
wIth EÆR's³from Troops who saId the
gages were no good. ½hen These gages
were checked outÇmany of 'em came
through WITh flyIng colors³perfect
condItIon.
·5
THis HappeNs,
tOO, WitH Other
electrically
OÇerated gages Ȳ²
ON aÉl Different
KiNDs Of Êrmy
equiÇmeNt
Battery geNeratOr iNdica±or
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