PS Magazine - TB 43-PS-566

PS, The Preventative Maintenance Monthly

ISSUE 566

JANUARY 2000
PS Magazine - TB 43-PS-566 - Page 8 of 42
PS 566
13
PS 566
12
JAN 00
he air induction system on your M1-
series tank is like a giant vacuum
cleaner—it sucks up anything that gets
close.
That’s the reason for your tank’s seals
and filters. They screen out sand and
dirt so that only clean air can get
through. They also keep out larger
debris that can dent, crack or break
compressor blades.
If you want them to continue to stop
potential damage, pay special attention
to these important PM points:
Precleaner
Trees and bushes make a
good hiding place for your tank,
but they also result in clogged
air precleaners.
Leaves that fall on or near
the air inlets get sucked onto
the precleaner. Enough leaves
will cut off airflow and lower
power output.
If the AIR CLEANER
CLOGGED FILTER light
comes on, make the precleaner
one of your first checks.
M1-Series Tanks . . .
Precleaner seal torn?
torn, replace it. NSN 5330-01-166-
5798 gets a seal for the type A
precleaner. The type B precleaner takes
A new seal is useless, though, unless
you put it on right. Here’s how:
1.
Clean off the old seal and adhesive
completely. To do it right you’ll need
a lot of elbow grease—combined with
a rag, dry cleaning solvent and a
wire brush.
2.
Spread adhesive, NSN 8040-00-
664-4318, in the seal groove. Use
enough to hold the seal, but not so
much that it squeezes out around the
seal. The right amount of adhesive
keeps the seal from sticking to the
airbox frame and ripping loose every
time you remove the precleaner.
3.
Apply a very light coat of adhesive
to the bottom of the new seal and press
it into the groove with your finger. Take
extra care not to twist the seal as you
put the rounded side in the mounting
groove. A twisted seal is not airtight.
4.
Let the adhesive dry completely be-
fore you put the precleaner back in
place. Put a dab of adhesive on a piece
of paper. When it’s dry, the seal should
be, too.
Skirt Seals
If you’re having problems with
clogged air cleaner intake filter ele-
ments (V-packs), missing fender skirt
seals could be the cause. Those rubber
strips are there to seal the area between
the skirts and hull.
Baffle seals torn or missing?
NSN 5330-01-225-6106 gets a new
short seal. The longer seal is NSN
Next, eyeball the bottom precleaner
seal. If the seal is missing, loose or
While you’re there, take a close look
at the baffle seals. Cracked, torn or
missing seals allow dirt and oil from
the engine to clog the air cleaner as-
sembly element strainers.
Precleaner surface clean?
what's his
problem
?
gasp!
can't
breathe
!
that depends.
when was the last
time you
pulled pm
on
the
air induction
system
?
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