PS Magazine - JUNE 1986
PS, The Preventative Maintenance Monthly
ISSUE 403
JUNE 1986
Your tank needs clean air to
breathe. If the air filter is clogged or
Letting in dust, it can put your tank
out of action pronto.
For M60-Series Tanks
Keeping the air fiLters in prime
condition is a job for the mechs. The
ONly
time you crew members cLean
the air filters is when you're in the
field far from the motor pool and any
of the foLLowing happens:
•
Exhaust smoke becoMes very
black.
•
Air restriction indic±tor shows a
red window or high reading.
Red window or
high reading
.
_
means trouble
•
The
²
engine loses a great deaL of
power³
•
The bLower motor discharge
´
elbows bLow LittLe or no airµ excePt
the new ¶60A3's which have no
bLower motors.
1±
If any of those conditions occur,
immedia·eLy stop ¸our ¹ank and use
the emergency procedures Listed in
the -1º0 T¶'s for cleaning the air
fiLters.
Avoid being caught out in the fieLd
with a bad air cleaner system by
keeping the area around the air cLeaner
houSing cleanµ watching for cracks in
the hou»ing¼ and feeling for exhaust
at all four blower motor elbows.
Cracks or no exhaust mean it's time
for an air cleaner check½
ChEck air clEanEr
seals for crackS,
denTs. or b±itTlenESs
JU²E 8³
You organizationaL mechs need to
watch for a number of "choking¾
signs when puLling maintenance on
the air filter.
Are the air filter door and element
seals in
¿
good shape? If there are
cracks, dents or signs of brittleness,
replÀce thÁ seals.
Carefully eyeball the intake and
outlet hoses. ¶ake sure the nuts
clamps and gaskets are tight an
d
holding. Âook over the elbows and
hoses for cracks and weak spots.
Hole In hoses?
Nuts² ³laMps²
and gaske´s
´Ight?
With the engine runningµ the bLowers
should emit a strong exhaust. If nO
air is flowingµ shut thà engine off
Imm´dIAt´ly
and keep it off uRtil yoU
find what's blocking air flow.
Äe±ch up into the outlet eLbows to
feel for dust traiLs. Dust traiLs are
JU²E 8µ
11
often signs of damageÅ seals or
damaged filter elements
¶ost important, examine the filter
element itself. If you see holes, cracks,
dents, excessive hardness or fueL
spots, it's time for a new filter.
If the eLement is just dusty, it can
be saved. ÆhakÁ thÁ ÁlemÁnt, being
careful to keep dust out of the FÇlterÈs
insides. Ése an air hose with 90 ÊÆI
or less to blow the rest of the dirt
away from thÁ inside out of the filter.
To get the new 90 ÊÆI VËÌack
cleaner¼ use NÆN 2540Ë01Í194Î3218.
When you use itµ always wear goggles
and gLoves to protect your eyes and
handsÏ
¶´v´R hI· th´ ´l´m´Nt AgAIN¸·
¸Om´thINg tO R´mOv´ dIRt. ¹hAt RuIN¸
ºt.
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