PS Magazine - TB 43-PS-414
PS, The Preventative Maintenance Monthly
ISSUE 414
MAY 1987
1±:
I
M978 HEMTi Tanker .±²
. Handle Control With Care
'
_'
I
_
)
concentrated where the hoses join the
fTings on tHe control.
>
IF yo
Let your ±EM²² tanker's
hand-actUated va³ve assemb³y (deadman
contro³) rew´d by itse³F, µe controL can
be ripped o¶ the pair oF hoses·
²he hoses wind up on a spriNg-³oaded
ree³¸ When you pu³L¹ the hoses come
outº »et Go¹ and the spriNg tAes over to
pu³³ the hoses back onto the ree³·
B t
Co¼½o³ mus¾
b h³oN
as
i
PsS¿
´ µ¶ cu·
on
¸
BaÀ
oÁ
¹º »RC¼
ÂF ÃtÄs noÅÆ
½¾
wonÇt Èo
¿À Al
th
s
O
Á
suDden stOÉ is
T±
ÊrËvenÌ
dÂ, wÃ
the
ÄOÅ
ÆÇÈK
Ín Îe
ÉÊ GU
²
ÏontRo³
Ë
the ho³e and back to the reÐLÑ
IF hoses pÒ³³ away Óom the ftting
crimped on the end¹ hereÔs a fx:
Õut o¶ a coup³e oÖ ´ches oF each hose
and push them ba×k on the fttingsØ ²hen
Ùse screwÚÛÜ hose ݳamps¹
NS³ 4730-
´µ363-4102,
to secuÞe the hosesß
¶8
MAY 8·
\
I
I
i
M939-SerÌeÍ 5ÎTÏn TrÐÑk ÒÓÔ
Air FiltEr Fouled?
_±
²
ÕÖ×Ø
k
s we
'
ve found
Dear Half-Mast,
.
± ±
ers o
M939-series 5-ton truE ²
When c
heck
1
³
g
a
1´
f
1
l
he
R
e
'
s it com
in
g
from
?
filteµs fouled wIth oLl
±
Mr
±
WÙ
K.
Dear Mr.
W k¸¹
Te fel tank, transmission and tRnsFer gearcases on M939-series truCK vent
into the ±uct to the air cleaner.
²uel ³om an oVe´lle± tank cAn run thru the Vents .
.. and end up in the gearµ
cases. Ten, oil ³om an oVer¶lle± gearcasE may be Force± out thru the Vent
lines .
.. an± en± up in the air cleaner.
Or a leaking interlock air ·r can pressurIze the tRnsFer .
.. and push oil
into the air cleaner¸
¹ the air restrºc»ºon indicator shows re±, check the air cleaner. ¹ it's oil cLogge±,
check the leVels in the tRnsmission aN tRnsFer.
¹ they're oVe´lle±, ±Rin the ¼cess.
½eck For ¾el ¿ÀÁing the oil,
º
Â
the oil à necessÄÅÆ
Ú
thÇ're Èw, get your sUPpoÉ to chÊck
thÊ ËÌer Íck air ÎlinÏr For
l»¼
Be sure the fel
½
is nÐt Ñlle± to the
top.
P
a
L¾
2 inÒhÊs
dw ¿
stenÒil
"CÀUÁIÂÃ:
DÛ ÜÛÝÞL ßàÛvá Ýâãä åÜá
ÝÛ æçÛè fÛé áxpßÜäãÛÜ"
in 1Óin bÔck
leÕeÖs,
ÄÅ
²ig 17 oF
Æ
43×02( shows.
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