PS Magazine - TB 43-PS-415
PS, The Preventative Maintenance Monthly
ISSUE 415
JUNE 1987
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M929/M930 Dump Trucks
.
±²³
.-´µ¶
The Invisible Dra²n PLug
LO
9-2320-272-12 says to drai the
hydraulIc oIl reservoIr on M929/M930
5
-ton dUmp trucks every 12 months±
just remove the draIn plug
a
waIt a
fw miutes.
Hydraul·c O·L Rese¸o·r ":¹º »
But there's no draIn plug²
To draIn tHe
t
,
dIsconnect the lIne
at the bot³om oF the
t
.
No sPcIal
tools are needed.
´lay It saf, tho, and let the
t
cool
beµre dIsconnectIng th
¼
LIne. THen you
won't get a ¶ce
fl
oF h
½
t oIl.
When reconnE·ng the l¸ne,
b
care¹l
not to cross-º»d the ¼t½Ing.
i
you s¾Ip
the threads, your tr¿ck goes to supÀrt
to get ³he hose replaced.
AÁer re
f¾
the
t
,
check the lIne
µr leÂs² Ãg? TIghten the ¼ÄIng
1/6
tm
or 1 Åat at a tIme untIl the
le stops.
has no dra·n pLug
20
JUNE 87
M939-Series tRuck´ µµ¶
³ube the ´ach DRive
WHen you're luÆig an M939-seRes
5-
ton truck,
G
ve ³he STÇÈÉCÇ tachometer
pulse sendIng uÊt a DÆ oF
GA
greaseË
The sendIÌg uÍIt comes wI³hout lubeÎ
Ïut
±
you rÐn It ³hat way, It'll Ñeeze up.
To luÆe It, taKe the tach cable oÒ the
seÓdIng ÔnIt² Work a lIt³le grease In the
end oF the uÕÖt wIth yo×r ¼nger. ´¿t the
caÆle Æack on² As the engIne runs, Øe
grease wIll soÁen and run down Into the
uÊt and lube ItÙ
Gama Goa· µ³¸
Easy BRake Hub µeaSsembLy
Dear Editor,
Here's a fast, easy way to get a Gama GoaT's bRke assembly back
on the stub axle when the prop shaF spline is o± center.
²ake a
²³´µ¶
bolt
3
inches long and grind o± the head. Screw it into
the
p
rop shaft a couple of tu³s.
Put the brake hub's center hole on the bolt and push the hub in
until the hub ´aches the hold-down bolts. ²u³ the hub slowly as
you push. ²he hub wIL slide in place when the
axle shaft spµnes µne up. Sc´w on the
·6
nuts with lock washe¶.
·emove
the sawed-o±
bolt, and insta¸ th¹ retainº
ing
bol»,
lockplate
and
gaskets.
SP4 Gregory Hiatt
F
Campbell,
KY
JUNE 87
2¸
SL¿de brake
assembLy over
boLT aNd axle
(EÀÁÂÃ'Ä ÅÂÁÆÇ ÈÂD ÀÉÆAÊ)
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