PS Magazine - NOVEMBER 1982
PS, The Preventative Maintenance Monthly
ISSUE 360
NOVEMBER 1982
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If you don't know exactly h w to jump±start your M880²series truck from its
own 24³voLt system, don't try it! There´s a 50µ50 cHance yoU¶ll ruin the wiring
haRness and other components of the 12²volt system.
This goes for those trucks that've got thE add²on 24²volt system to operate
commo equipment· This system incLudes a 24²voLt aLternator and a pair of 12²
vo¸t batteries connected in series to put out 24 voLts·
Get this! Your truck Operates on a 12²volt system¹a 12²volt alternator, a
single 12²volt battery, a starter, Lights and other eLectrical parts designed for
onLº 12 volt
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If you feed 24 volts into this 12¾volt system, some thin¿'s going to giveÀgive
out, that is·
It is handy, tho, to have that extra battery power for jump²startiNg when
your truck´s regular battery can¶t get you sÁarted.
You need only 1 jumper cable because the 24µvolt system and the 12²voLt
system haVe the same ground.
But you've got to be carefuL to connect to onLy 12 volts of the 24²voLt system!
If you hook up to the inside battery, you get 24 volts. So take a good, hard
look· ·.
hook up only To The oUTside baTTeryº
20
To be on the safe side, take off the cable coNnecting the pair of batteries·
Connect your cabLe to the positive (+)post of the outside baÂtery and to the
j
Ãpositive(+)
poÄt of your truck´s starting battery·
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CLIP ON DO»»E¼ ½INE
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RemovE
short cable
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COnNE±T
jump±r
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Center labeL on 3x4-in se±f-stick,
trAnsparent pLastIc sheet.
NSN
9330²00³618²
72´8µ and mount on clean, dry surface
Åeed a jack foÆ your M880±series
1 \±ton tRuck? Çse ÅSÅ 5È20±00²233²
6829·
3¶ton hydrauLIc jack
2Ú
-
¸¹
This¶ll get you a 3ÉtoN hydraÊlic jaËk
thatÌs better thaN the original scReW
jackÀespecially if you are hauliNg a
coÍmo she¸ter or hAve a contact ÎainÏ
tenance trÊckÐ
CT
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50±970 authÑrizes a ÎiNiÎuÎ
oF È per shop, but yoÊR cÑmmaNd caN
aÊthÑRize extRa jacks fÒr yoÓR tRÓËksÔ
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