PS Magazine - AUGUST 1978
PS, The Preventative Maintenance Monthly
ISSUE 309
AUGUST 1978
Having 2 separate electrical systems oN oNe vehicle
caN be coNfsiNg Fr You mec±aNics wheN you're trou-
bLes±ootiNg electrical problems.
²'riNstaNce, the 12³vOlt system is Not quite separate
´om the 24µvolt system. ²act is, the 60¶amp or 100·
amp alterNator woN¸t charge that pair o¹ º2·volt Bat»
teries iN your 24¼volt systEM without a little help ´om
the º2µvoLt system.
ANd this hookup poiNt BetWeeN the 2 electrical sys½
te¾s is where trouble¿s showiNg up.
That relay mouNted oN thÀ leÁ ¹eNd½
er well is aN oNµo switch Ã
reaLly a
doublÄ switch. ÅheN you turN your
igNitioN
ON,
Your Æ2µvol t system
closes oNe switch iNside the relay. ANd
tÇis closes a secoNd switch iN the relay.
This secoNd switch coNNects the pair o¹
batteries Ã
24 volts Ã
to the 60 amp
(or È00 aMp) alterNator.
The batteries aNd alterNaCor help
eac± other. ÉurreNt ´om the batteries
activates the alterNator Êeld coils
Ë
Ã
so
the alterÌator caN charge the batteries.
I¹ t±e relay coNks out, the batteries
caN't help t±e alterNator Ã
aNd the al»
terNator caN't charge the batteries.
Relay Íilure is comiNg ´om moisture
LeakiNg in arouNd the edge where the 2
pieces o¹ the "ÎaNÏ are criÐped together.
Water gets
in around
the edge and
undeR the
connecto±
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