PS Magazine - TB 43-PS-631

PS, The Preventative Maintenance Monthly

ISSUE 631

JUNE 2005
PS Magazine - TB 43-PS-631 - Page 3 of 33
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 fin-
ger. 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 before 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.
PS 631
3
M1-Series Tanks…
T
he air induction system on your 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.
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
assembly element strainers.
a new short seal. The longer
seal is NSN 5330-01-320-3696.
Next, eyeball the bottom pre-
cleaner seal. If the seal is miss-
ing, loose or torn, replace it.
There are two different seals
available: NSN 5330-01-166-
5798 and NSN 5330-01-329-
6614. The seal you use depends
on the type of precleaner in
your tank. Check your -24P-1
TM to match the correct seal
with your precleaner.
A new seal
is useless,
though, unless
you put it on
right.
Here’s
how…
Precleaner
surface
clean?
Baffle seals torn
or missing?
Precleaner
seal torn?
what’s
his
problem?
that depends…
When was the
last
time we
pulled pm on
the air induction
system?
631.02-03(C)
4/29/05
3:04 PM
Page 1
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