PS Magazine - JANUARY 1981
PS, The Preventative Maintenance Monthly
ISSUE 338
JANUARY 1981
20-Ton RT Crane .
.±
Fuel
P·±²³´:µ.¶¸
.±
² : ³ ;´
_ ²³
´
µ¶
Keeping
fuel
fiLter
screens
and
eLements clean
Is
a must .
.. or your
mission's
a
bust .
.± when
you're
operating equipment In a hot, humId
cLImate.
ThIs
may
mean
doUbling-or
tripLing-yo²r inspect³ons to be sure
fungus has not formed on fueL filter
screens and eLeMents. F´ngus grows
fast where heat and hum³dity battle
for hIgh readINgs .µ. or when eq´Ip¶
ment is not operated reguLarly.
RecentLy, a ·odeL
·38¸
crane In a
southern state got only
·
miles down
the pike before the engIne stopped.
The
crew
checked
out
the
crane ¸.
. s¹arted it again µ.
. and went
3
miLes this tIme before It st
¹
pPed.
·echanics found the Problem some
tIme laterºa fungus»cLogged fLoat
valve screen in the f´eL transfer tank±
After
a
mineral
sPIrits
bath,
the
strainer was put back in the ¼an½ and
the crane opErated OK.
¾solated case? ¿o way. The unit
found
·
other ·odeL
·38¸
cranes wIth
fungusÀcÁad float vaLve screens.
¾f f´ngus seeMs to grow fast in your
fueL, chec½ the other fuel fIlter screens
and
eLements
and
cLean
them
if
necessarY.
62
R
ove
an
ÂÃÄÅ_
tan½s
to get rId of fungus, sLudge,
water, etc. Dry them out.
¿ext, chec½ your f´el source. Be
sure you're gett³ng clean diesel fueL to
put into your equIpÆent.
¾f you shut down your crane for
more'n an hour durIng a day of operaÇ
t³Èn, before you start the engIne, open
the fuel drain coc½s on thÉ fuel filters
and tanks to draIn off any condensaÀ
A 99Êcent fungusÀclad strainÉr less
than
·
inches Long stoPped a
$1·¸,¸¸¸
crane. ¾t's
the
smaLL
thIngsºË·Ì
wise-that
mean
bIg
savings
In
maIntenance downtIme and exPenSIve
parts rePlacement.
Cat Track facts
cat tractor needs Its shoes to
Leave trac½s.
And for the want of a nut, your
tractor can Lose Its grouser shoe. The
nut can Loosen if It's pÍt on upsIde
doWnµ
grouser
shoe
nuts
haVe
a
rounded side and a flat side. ·a½e sure
the flat sIde Is toward the shoe. This
hoLds the nut tIght In the trac½ lIn½
notch while yo´ tIghten the bolt.
63
INstAll flAt
sidE AgAiºst
g»OusE» shOE
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