PS Magazine - TB 43-PS-419
PS, The Preventative Maintenance Monthly
ISSUE 419
OCTOBER 1987
COOLING SYSTEMS
Your bible fr antiFeEze ±R Liquid cOling systems is
T 750-651.
It spLLs out
Pr²eDuRes fr cleaning and conditioning cOling systems and gives the Typ and
amount o³ anti´eeze neeDeD fr various degrees o³ µRotection. ¶his ·B aµPlies
to
all ANy eQuiPMe¸t¹
And
±M 75²³254´
teLls you everytHing else you neeº to know a»out cOling
systems on tactical ve¼icles½
Use tHis cHAQt AsA
gUiDe WHen F±lling
'oUQ cooling s²stem³
'eAH,
connie´ itµll tAKe
rp:,0±²e-³´.
-
-
±
.±²
s
·
tHe gUessWoRK oUt
d
¶
·;
µ¶
¸
P¹
¸º
»f ¼½hy¾¶¸¶
o¿ 'oUQ pÀÁ
+20°Â
+10°Â
0°Â
-
10°Â
-
20°Â
-
30°Â
-
40°Â
-
5
0°Â
-
55
°Â
þyÄž ¸¶¶Æ¶Æ .
¶aÄh
Ç
r¸
Èa ÇŸ Å
f wa½¶É
1VÊ
2
2ËÌ
3
Í
3ÎÊ
4
4
Í
4
Ï
4ËÌ
¾or g¿ opration, a cOling systÀM should hÁt uµ to
1µ°
to
¶80°
¾ regarºÂess
o³ the cold weÃtherÄ I³ it won't, have the engine's therÅostÆt checkeº-it couLd
»e sTuck opn and neeD rePlacingÇ
COLing systems tHat consÈntÂy go over
2·°
¾ aÂso neEº aÉentionÊ Again it
could Ë a bad therÅostat, a cloggeD radiator, a bad raºiaÌor caµ or ÍLÎhy cOlantÊ
Ïr may»e the Ðow o³ air is »l²keDÊ
Air cOÂeD systems donÑt neeD tO much aÉentionÊ
AlL
Îhey neeD is a g¿ Ðow
o³ air witH alL tHe airÒÐow shrouds in µLaceÊ ¶o sÓÔD uµ heÃting in zero weaÎher,
you can PaÕiaLLy cover the air intÆKe grilLs witH canvas wÖen stÆrting½ Just »e sure
to taKe it o× aØer Îhe engine reaches oprating tempraTUreÇ
'oU gU'Ð looK l±Ke
'oU ÑoUlD UÐÒ some
cooling Ð'ÐtÒm pÓ!
Crkcase oil
c
go to pt much quickeR in winteR and may nE cHanging moRe
ofen than the ±O sPciFes. S²udge ³om condensation and dilution ³om ´e² aRe
the main Reasons.
µfeR eveRy d¶ily oil-level check, sni· the Di¸stick ¹R ´elº And use youR eye
and FngeRs to detect s²udgeº MoistuRe cont¶mination is haRd to detect un²ess it's
Rea²ly badº I» you susPct it¼ dRaw a sam½²e ¶nd Jet it staND in a glass jaRº WateR
will show by se¸a¾ating ³om t¿e oilº
When cont¶mÀnation is ¹und, ch¶nge the oil aNd oil F²teRsº
I» you'Re using OÁµ µRctic engine oÀl, check youR oÀl level ofen Bcause an
engine wi²² coNsume moRe o» t¿is thi oil t¿an OÁº Keý aN eye on the oi²Ä¸RessuRe
gage: a ¸RessuRe d¾o¸
c
iNdicate ²ow oil. I» you' Re on a ²ong Ån¼ check the oi²
seveRÆ tÀmes a d¶yº µnD neveR oveRÇl to cut oR skȸ oil checks. Oveɲ²ing causes
ot¿e¾ t¾oub²es, so don't ½us¿ youR ²uckº
SÊe gËs ¹R t¿e Ìst o» t¿e chassisÍon't ove¾Ä²uBÎ G²obs oÏ coldÄsti·ened
g¾Ðse cÑ caUse ¸aÒ to bind ¶nD ²Ókº
Condensation is a²ways ²ÔkÈNg ¹R a
¸²ace to ¿a¸Pn.
S,
Àn BTwÕN you¾
ÌgU²aÖ PRÀ×Àc lUB ØÙÀcÃs, chÚk one
oÛ Üo oÝ
yO
gÞ ßàáe a âãeäNå
¸¹
æçèéN
o
æêRº µë eV
oÏ waTeR coNìinatioN is íe sigî ¹R
an oi² c¿¶Ngeï
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