PS Magazine - TB 43-PS-638
PS, The Preventative Maintenance Monthly
ISSUE 638
JANUARY 2006
PS 638
JAN 06
53
T
he M17 decon has two versions of the Cuyuna/2SI engine. Those engines with serial
numbers below 63427 are one version and those with numbers 63427 and higher are
the other.
The NSN differences in parts for the engines are covered in TM 3-4230-228-23&P,
except for these:
Serial numbers below 63247
Fig C-28, Item 4, electronics amplifier, NSN 6110-01-358-7886, PN 1389, SMR PAOZZ
Fig C-28, Item 9, ignition coil, NSN 2920-01-356-6928, PN 3040, SMR PAOZZ
Serial numbers 63247 and above
Fig C-29, Item 20, ignition trigger, NSN 2920-01-498-8351, PN 3500, SMR PAOZZ
Fig C-29, add Item 23, ignition coil and wire assembly, NSN 2920-01-498-8916,
PN 5035, SMR PAOZZ
get out your
pencils and
make these
changes
in
your tm.
Electronics
amplifier
Shake most of the
water out of the
beret. Don’t wring
or twist it. You’ll
distort its shape.
Draw hot water
from the faucet
into a pan or
bucket. You
don’t want to
use water any
hotter than
that. Soak the
beret until it’s
completely wet,
about one to
two minutes.
Put the beret on your head, with
the flash over your left eye.
Fold it to the right, down over
your right ear.
aaaaaaaaa
PS 638
JAN 06
52
Make Beret a Good Fit
Some hot
water and a
little know-how
can shrink your
beret down to a
perfect fit.
Make sure
you keep
the flash
out
of
the water.
You
don’t
want to
shrink
that.
uh-
oh.
if the beret’s
too loose,
pull on the ribbons, one at
a time, until it’s snug.
Knot the ribbons and cut
off the ends.
Air dry the beret. Never put it in a
dryer. Dryer heat can shrink it and
crack its rim.
The beret’s made of wOOl, so if it
needs cleaning, take it to the dry
cleaners.
Never
hand wash it or clean
it in a washing machine. it’ll shrink and
then you’ll have
too tight
a fit.
uh-
oh.
I have
two
different
engines,
which
means I have
different
NSNs for some
parts.
Make a note of
these changes until
TM 3-4230-228-
23&P is revised.
One blast from
the north wind
can snatch that
loose beret
right off
your head.
it needs to
fit snug so you
won’t have to
make like a
golden
retriever and
fetch it.
Fig. C-28
Fig. C-29
Ignition
coil and
wire
assembly
Ignition
trigger
Ignition coil
638.52-53(C!).qxd
12/1/05
4:55 PM
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