PS Magazine - AUGUST 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 249
AUGUST 1973
Every trooper in the Army earth-
MoVing business knows that a 645±
Scoop lOader is a useful and mighty
workhorse.
Keep your
operating
habits top notch² Be on the Lookout
for these irksome quirks that can
waylay y³r powerFl machine´
ENGINE iDLE
Treat the engine tenderlyµafter
startIng and be¶re shutdown´ A·er
starting, run it at low iDle (¸50¹700
!j•
RP±) ¶r 15 seconDs² Then step It
up to ºst idle (700»¼000 ½P±¾ ¶r
3
to 5 ¿InutesÀ The low iDLe will
ÁÂÃ
giVÄ the turbocharger bearIngs tI¿e
KEEP IT EVER READY
Åor_ yoUr $18Æ 7QÇ hunk Èf ¿achinÉ
ery to Do its thing it needs P± aÊËec-
tIonÌ Just like it's speLLed out in ͱ
5-
3805Î2Ï9ÐÑ2Ò
to get lubeDÓ anD the fÔst idle wIll
warM up engineÕ
At shutdown do just the opposite.
Öast ID×e ¶r seØeral Minutes to eVen
the engine heat to preVent tHer¿al
shockÕ AnD low iDle to giVeÙthe tur-
bocharger time to slow Down be¶re
its oil Úow is cut oÛÕ
WHOA! NEVER TOW OR PUSH StART
Call a mechanic when your 645± wonÜt start unDer its own power²
Towing or pÝshing can cause baD daMage to the trans¿issionÕ You never
tow or push the loader More than a halfÞmile unLess you disc
o
both Drive line shafts´
66
·LOADER SCooP
Íhis one is a sleeper. When your
loader is beIng hauledß a turbocharà
ger bearing can be ruined by strong
USE RAG, TAPE OR TIGHT
FITTING CAN
áind pressure entering the exâaÝst
pipeÕ ãhat happens is that the tÝrà
bocharger turbine spins without get-
tIng lube. To dodge thIs dire dangerä
plug the pipe with a ragå put tape
oVer the openIngå or coVer It wIth
a tight¹ætting can² But donçt èrget
to "pull oué the stopperê after you
get where youÜre goingÕ
ëaVing trouble with those
12
wheel stud nuts? ìo they insist on
working líoseî causing studs to break
oÛ? EnD It all with super sealant.
Get hold of ±aintenance Kitå ÅïN
8ðÏ0Ð98ñÐ7007² After you put on the
sealantå torque the stud nuts down
tò ϸ5Ð400 pounDsÞóet² Those stud
nuts shoulD neØer work the¿selVes
lôose again² õut check the¿ eVery
now and then anyway. An ounce oË
preØention and all that.
NOSE ON THE GrOUND
That bucket áill neØer fall on anyboDy or anything if you öeep it
lower÷d to the ground when not in useå and especially when servicing
your loaDerø
67
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