PS Magazine - JANUARY 1983
PS, The Preventative Maintenance Monthly
ISSUE 362
JANUARY 1983
I
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It's easy to spot a lEaking fuel Line in
a system with the in-tank fuel pump.
· :.
There's pressUre on the fuel when the
pUmp±s running, so you²ll see fuel
driPping
from
a
break
or
loose
cOnnection in the fUel line³ Fix it.
It²s a little harDer, tho, when fueL´s
BeiNg pUlled from the fuel tank. Air is
pUlled
in
thrU the
break or loose
HoOkUp. You can±t see the air, natchµ
bUt it sure gives your engine fits!
¶ngiNe fuel troUble in your M809·
series 5¸ton trUck may be causeD by an
old, mushy hose between the fuel filter
and the engine fuel pump.
fuel Line, squir¹ a little oil on the
connectionsºchecking one at a time.
»o the same on a suspecteD¼ crack or
otHer Damage point. With the engine
running, look real close. If oil is suckeD
in, air is being suckeD in.
Try to tighten a leaking connection.
½f it still leaks, repair it. Replace the
line if it²s pincheD or if some damage is
caUsing a leak.
NOT GEt±Jn
FUEL/
±
²² z³´µ
-
Fuel ¾¿Àp suction cÁn collapse the
hose, squeezing off the fuel supplÂÃ
just enough to make yoÄr engine run
baD.
·
Check the hose while your engine²s
running. Åook for flattening anÂwÆere
along the full Çength of the hose. See
È
ÉÊËÌ
ÍÎÏÐ
the Fuel System Support »iagrams in
your
TM 9-2320-26Ñ-20-2 1, Òages
15¸2 thrÓ 15-4.
If you´ve got a bUm hose, put on a
new oneÔÕSÕ 2910Ö00×134Ø4649 in
yoUr TM 9-2320Ù260·20Ò.
46
_
±
wer
Speed, LongeR Life
½f yoUÚre haUling an
your M747 semitrailer, slow Down aÛ
the outside temperature goes up.
The wrong combination of speÜD,
±
temperatUre anD payload of more than
60 tons can cause yoÝr trailer a heap of
troUble. Tire tread may separate, and
Brakes anD wheel bearings will wear
½f you²re not sure of the temÞ
peratureß as a general rule, stay unDer
27 MÒà on paveD roaDs anD 10-15
MÒà off the roaD.
YoU can lighten your M747±s Çoad
when haUliNg an Má tank by removing
such thinGs as extra fuel and ammo
from the Má.
±
=
e
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ùúûüýþÿĀāĂ㥹6ĆćĈ3ĉ8
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47
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