PS Magazine - MARCH 1986
PS, The Preventative Maintenance Monthly
ISSUE 400
MARCH 1986
AlL fueL pressUre tests are done with Test 49 or 50
_
49, when tes±wiLl be
beLow 25 PSI, and 50 when test wiLl be with²n the 0-1,000 PSI range.
Vehicle Fuel Pressure
.
__±___ ²
M151 A2-series 1 /4-ton truck
M880-sEries 11 /4-ton truck
M56111 ±4²ton Gama Goat
M44A2-series 2 1 /2-ton tRuck,
M39A2³series 5´ton truck
M809-series 5-tOn truck
M520 8-ton truck Goer
M48A5/M60-Series tanK
M109-sEries, M110A2 µP howitzer,
M578 vehicle
M113¶s!ries carrier
Dial 49 on the switches³
Hold ´he TESµ BU¶·oN ¸own Un´il
CA¹ shows Uº on t»¼ READO½µ
DIS¾¹AY windoW¿
µhen wait For an oÀFset NUmBer ´o
aººear in the wÁn¸ow¿ IF it's between
-4 an¸ +Â, Á´'s OK¿ IF no´, use
Ã
another
traNs¸Ucer¿
DÁal
OJ
on ´he µEST SE¹ECT
swi´ches¿
¾ress an¸ relÄase ´he µESµ bU´´oN¿
Åhen the ¾ASS aºpears agaÁn,
dial Â9 into the µEST SE¹ECÆ
windoW¿
¾ress ´»e µESµ BUtton For a
momen´ an¸ star´ the Çngine¿
µhis lets the ºressUre ¾SI and
eNgÁne RÈM show Uº alternately Án
the VTM wÁndow³
IF 1¿5 ¾SI shows Uº on yoUr VµM,
´he FUel ºressUreÉs OK¿ IF Not, yoU've
go´ a clogged FUel lÁne, Fil´er or a bad
Ê
ºUmº¿
Correc´ ´Ëe ºressUre Ìroblem and
rUN ÍÎÄ ´es´ agaÁn¿
Accelerate
Maximum PSI
·
1.2
3
45´70 at 2,800 ¸PM
50´70 at 2,850 ¸PM
45´70at1,500´2,800 ¹PM
10´20 at 2,350 ¸PM
45-60 at 2,500 ¸PM
50-70 at 2,100 ¸PM
Trucks and µemitrºilers »¼¼
Old Brake Pin's DangeRous!
Y€AH1 BlI Vov
Sh±²t.T³c LaD yC´R:
s±LTR/²³f´µ B¶K·
FiXEd µf s¶e W·'!
P¸
328 MAR 80--"YoU can wa
!
t UnTil it's too Late ±
or you caN get
the new b²ake shoe GUIde pIn setup in yoU² 5-ton trucK and aLso in
certain semIt²aile²s towEd by 5-ton Tracto² t²ucks.³
ACC´Dµ¶· RµPOR· A¸¹ 85--FivE-ton t²Uºk pullIng semiTraile²
crashes. Reason: BrakE shoE GUidE pIn failU²E»
Old news is still good news when it
comes to t»e improved brake shoe
gUide pin for yoUr M39-or M809Ï
serÁes 5ÐtÑn truck andÒmaÓbeÒyoUr
seÔitraÁLer.
¹
yoU're still using brake shoe
gUide pÁn, ÕSÕ 2530Ï00-925-8139,
and its relate¸ parts, you're risking
the retainÁng rÁngs coÔing oÀf the
pins¿ And ¿¿¿ yoU're risking a bad
accÁdent¿
Solve the ºrobleÔ by gettiNg gUide
pin kit, ÕSÕ 2530-00-137-9275, inÖ
s´alle¸¿ ×nstructÁons come with the
kÁt¿ TheÓ're also Án TØ 43-01ÂÙ(Jun
77) Para 4-Ú 4a, ¾age 4Ð41¿
¸hi¹ i¹ the kit
NUT
r
WASHE±
-º
»
¼
½
¾
L²p±ING
º»¼
Û²Ü ²s ݲsÜed oÞ ßage 2Ðà0á oâ
ºM
ãÐ2á20Ð2àà-20 Pä Påge 40 oâ æ2 to
ºM
9Ð2á20Ð260-20ß aÞd Påges ç-20 aÞd çÐ2à of æè éo
ºM
9-2330Ð
2ê2Ðà4&ëì
×t's íot LÁsted at îî
¿
in TØ 9Ð2330-207-24P w/CÚ¿
Only the piN, ÕSÕ
5315Ð01Ð031ï4458, ðs lñsted in µM 9Ï2330Ï227-Ú 4ò¾ and in µM 9-2330-24óÏ
ô 14òP³
m½r 86
¾7
I:
¿
I;
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