PS Magazine - NOVEMBER 1984
PS, The Preventative Maintenance Monthly
ISSUE 384
NOVEMBER 1984
I
1±
l-
.
Turbo Hose Leaks
r
Eyeball the turbocharger air inlet hose and Clamps. After several powerpaCk
removals and insTallations, the hose and Clamps may be worn out.
W
Y
=±²!
If the Hose is torn or
DeFrmed so that it Won't
Keep an eye out, meChs, Fr air
Cleaner box Doors that don't Close tight
or ±it right. ²hey'll lea³. Leaks lead to
engine ´ilure.
²he problem's worse with replaCe-
ment doors. µhey don't always matCh
up ¶ith the opening in the hull.
Resist the tempTation to beat the door
into shape ¶ith something heavy. ·hat
¶on't wor³.
²est the Door Fr a good ±it befOre
one or more of the holes in the
¸
hinge:
¹f it's still noºgo, get another door.
²o make sure you've got a good seal
after you get the door to fit, try the
Chalk test.
»lean o¼ the air Cleaner box where
the door seal touChes it. Rub Chal³ all
around the seal. »lose the door. If you
see solid Chalk marks all arounD the
box, you're most li³ely all right Fr
you moUnt it. You've go½ to ma³e¾sure
Gaps in the Chal³ mar³s, tho, mean
the door Covers
¿
the opening and will
you probably need a new seal. Àse
loC³ ±irmly in plaCe.
NSN 5330ºÁÂ745º7781 to get oneà Àse
If the door Äts beFre you mount it,
aDhesiveÅ NSN 8040Â00Â152Â0067
But not after, you may need to adjust
(6ºoz Can), to apply the seal.
16
NOV 84
seal, rÆplaCe it. Àse NSN
4720º00º933Â7633.
If the Clamps won't get
tight enough to seal the
hose, replaCe them. Àse
NSN 4730º00º725Ç0537.
ÈornÂout parts in your air induCtion system mean inCreased engine wÉarÊ And
=±
in this Case, the engine is worth muCh more than the sum of the parts you may
have to replaCe. So don't be pennyºwise and poundËFolish. Get and keep a gooD
seal.
M578 Recovery Vehicles, SP Howitzers .±²
Red Light Means Trouble
Ìf all the gages, switChes anD lights
y
ou eyeball ¶hile drivinÍ your vehiCle,
the most important may be the low CoÎlant level indiCator light.
²he Cooling system on M 109Ëseries
³ W´
Ï
and MÐ Ñ0A2 selfÒpropelled howitzers
1±20
and M578 reCovery vehiCles gets
µ:
±²
¶
· ¸¹-º»¼½"¾
overheated pretÓ easily, esPeCially if
any part of the system is not working
right.
²he low Coolant light lets yoU know
that there's not enough Coolant in the
Ôadiator. ²he light is hooked to an aeraÕ
tion deteC½or moun½eD oÖ ½×e raØiÙtors.
Èhen the Coolant level ´lls belo¶ a saÚ level, the light Comes on. ²hen yoU
stop where it's saÛ, s×U½ Down and let the engine Cool oÜ Fr 10 minutes or
so and refill the radiatorsÊ
'·³
²×e light Clues you beFre operation, too. It'll glow ¶hen the master s¶itCh
is tUrned on if the Coolan½ level is low.
²he light gets broken easily if you're not CareÝl when moving the portÞble
instrument panel, so taße CareÊ
´
²×e light is Cheap proteCtion against the biggest CaUse of engine overheatà
ingálo¶ Coolant. âay a½tention to the light ¶hen it "tal³s.ã
nOV 84
-
17
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