PS Magazine - TB 43-PS-462
PS, The Preventative Maintenance Monthly
ISSUE 462
MAY 1991
M939A·Sries TRucks
.•.
Power SteeRing Pump Leak
T
he
powEr
stEeRing
pump
on
M939A2 5-ton Tucks has a ±EndEncy
±o lEak. WhEn too ²Uch fLUid LEaks
out, yoU losE youR power steEring³
So´
bEFrE yoU DµIvE
out
o¶ ·HE
motoRpool ¸n youR new M939A2-series
trucK¹ EyEball ºHE hosE cLamp on ·HE
oil rEtu» line going ±o tHE power stEe¼½
¸ng pu²p¾ MakE su¼E it's gooD aND
t¸gHt ¾
.±
a
that tHErE¿rE no DRops of
Àu¸d haNging a¼ounDÁ
- I
_/
i"
±²³J
,²³
·
±
²³"´µ
[
_±
r
'_´ µ¶
lL•
´
-
ÂEEl ÃOr wEtNEss around ±HE oÄÅ supÆ
ply line¿s tUbing nU± connectorsÇ Make
sU¼E ±hEyȼE ±igh± aND D¼y¾
ÉyEball thE pÊwEr stEEËIng pU²p
whEre ItÌs connectEd ±o the air co²½
p¼esso¼Ç Get yoUR ²Echan¸c ±o ¼e²ovE
thE pu²p ¸¶ yoU find a lEakÍ ÎirEc±
ÏuppoÐÑ w¸LL rEplace thE fLaNgE gasKEtÒ
ÓSÓ ÔÕ30-01-Ö71-9407¹ aNd ±orqUE
thE ±hrEE cap scrEws ±o 30-40 lb/×tØ
DIrect ±upP² w³ll
replaC
t
g´skEt
'-±
t-
µ´ps¶rew
±
Fl´nge
!
M52 Fuel Switch & LighT
G
Et tHE daÙhÚmounºEd ¶uEl ÛÜÝs¶Er pumP switCh
fr
MÞ2ßÙàµiEs tµac±Êr Tucks
and othá Ô-tonNers with dUaâ fUeâ
TA
with ÓÏÓ Ô930-ãä296-6318³ åhe
indicator light is æSÓ 6210-01-01ç-0è6çé MakE a notE untêl ·HEÙE ÓSÓs
a
aëdEd to
µ
9-2320-2ì1-20íî
M¶Y 91
2·
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