PS Magazine - JUNE 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 235
JUNE 1972
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your smll MiL Std Engine (6 HP of Less) d±penDs on the rocker arm cover va²ve
FOr re²ieF.
It²ooks ²ike aN inNocent cap screw³ ´on't let it µoo² You³
When this saµ±tY va²ve is stuck, You'v± got troub²es³
A big buildup oµ pressure takes p²ace in the upper chamber, shuttiNg oFF the lUbe ¶U··¸¹
to the vita² engiN± parts. This'l² ki²² Your engine For sureº
There's on²Y on± waY out³ The re²ieF va²ve
i:±²³´µ=-I¶·
must be Fre» an¼ worKing at all ½i¾¿sÀ
Áou caN check it bY pulÂiNg the ceNter
part out with Your FingerNai²s, a screwdriver
or anY sharp object³
IF it's corroD±D aND stuck Your eNgine is
headed For a D±aD eNd³
C²eaning it iN so²veNt wi²l he²p a ²otÃÄ A
touch oF oi² maY set it Free³ IF it has seeN
its daYs, Gt a New one with ÅSÆ 4820-
79-558dz
´oN't be satisµieD with a substituteÈ The saµetY valv± You waNt has a pres±t set½ing oF
1 to 2 PSIÃ A Éigher PSI just woN't work³
CRaNE ROTOR CaPS
Áour ÊoD±² Ê320T 20ËToN craNe shÌveÍ ÎaY be ÉeaDiNg For a DownFalL³
Check the recorDs to see iF Your suppoRt put N±w valve rotor caps on Ïhe carrier engineÐ
Iµ not, Ñet 'eÎ to hop to it Now, 'cause the o²D caps Fail unDer Fatigue, dropping th¿
va²ves iNto th± ÒY²iNDers Ó³ th±N wham!
I'M
GONnA
FALl
I±T tH'CYli²DER!
³£´ µha¶ JLeW V·¸v¹ roº»¼ caP½
Áour support caN orDer tÉe New caps
µroÔ:
U
.
S
.
Army Mobility EquIpment COmmand
AT±N: AMSME-MMC
²
C
³
4300
GoodfeLlow B
l
vd
St. ´Ouµs, M¶
63120
_
Te²l 'eÎ to ask µor a set oF Òaps µor each
crane, aND be sure theY give thÕ ÖSA Num×
Br, the eNd item aND carrier engiNe seria²
Numbers oµ each craNe³
These disks are soFter aND thick±r
to make sure the ²eakiNg nozz²es
1¸
behave³
V
Áou Øet the New mÙjor va²ve
disk
with
ÅSÆ
5330-16ÚË1Ú18
(PÆ1321ÇÛ2824ÜÝ)
and it's ÅSÆ
5 330Ë16Ç-1Ç1Ç
(PÆ 1321ÚÛ2Þ24Ë2)
Öse ßoutinØ IDeNtiFier àá2³
Put 'em on ²ike iâ saYsã in para äË
38 oF TM 5-4Ú30Ë227-14 åun 6Ç).
.
Put oN± or moR± DæaiçÙG
²iN±s Ùè ié bêe ëND sÙY Øooìí
bî± èo wÙè±r bui²Duï iNsðD± aND
rst
aND Òoñroòóoô³
A siNØͱ õµö tub÷ with µièø
èiNù wi²Í Do ú± ûriÒk iµ Your
uNit is ²±v±Í oñ óµ tɱ DñaiN is at
tɱ ²owüè ïoiýt oµ Ù èi²tþ
¾
You N±ed Îor± DrÙiNs,
g
a
ÔÙNY
a
µÿurĀ āɱY ë²² cÙN
ÉÙv± Ù ÒoĂÔoý oută±t, tĄÓ
Coïąr oæ ïăĆtðÒ ćubiôØ aôD
µièèĈNØĉ Ċ ċČčĎďĐbutđÔostaNY
ÎÙĒ±ñia² worēĔ CÍĕr ĖėbiNØ
Ęiĉ ęR÷Ùè Ěñ D±ûěĜNØ a stoïĝ
ĞğĠ
A ìġĢģÙر ĤB sĥou²D ýÿè
Ħ Íërę±æ tÉÙô ħ/Ĩĩ iNÒh (ĈNsiD±
Īiī±Ĭ±rĭ³ ĮiØ oNeò
´
ÍĈį± Ùir
iô²±tsİ įıïðôØ tɱ wÙter µroÔ
µăowiNØ oėè³
¾
IJou ĪijiD± oô oN²Y oý±
DRÙiý, puè Ĵt oý Ù siD±ĵ Tɱ
R
ĶÙiN hoͱ g±é too ķuÒÉ
ĸ²ow µæoĂ èű ÒoýD±Nseñ coiÍĵ
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