PS Magazine - TB 43-PS-591
PS, The Preventative Maintenance Monthly
ISSUE 591
FEBRUARY 2002
PS 591
FEB 02
45
M240-series Machine Guns…
We will
return
to
PS
Magazine
after these
words from
our
sponsor…
PM-Bismol
for Gas
Relief
PM-Bismol
for Gas
Relief
What your
gun needs is
PM-Bismol!
“On the range, ream the plug holes and
the barrel's gas port hole whenever
there's a break in firing. Use the small
reamer of your cleaning tool on the
three holes in the plug. But don't force
it. It doesn't take much to snap the
reamer. Work the reamer in and out of
the plug holes. Then twist the reamer
back and forth until the carbon’s gone.”
“Carbon causes
gas problems
by stopping
up the gas
regulator
and plug.”
“The
longer
carbon sits,
the
harder
it is to
remove.”
“So clean
out carbon
ASAP
with your
combination
cleaning tool…
…especially
after firing
blanks, which
produce more
carbon than
live rounds.”
“…
it
can develop worse gas
problems than
you
do after
a big bowl of Texas chili!”
“Use the
large
reamer
to clear
the
barrel's
gas
port
hole.”
“Use the scraper's point
on the grooves and at
both ends of the plug. “
“When firing's
over, give the gas
system a total
cleaning. Twist the
scraper in the
plug until all
carbon's gone.
make sure the gas
plug is set to
1
.”
“Clean
carbon
out of the
op
rod piston
and
gas cylinder
with the combination tool.”
“Ream the plug
and gas port
hole again. Use
the gas cylinder
brush to clean
the cylinder
bore. You're
done.”
“For more info,
see Chapter 3 of
TM 9-1005-313-10.”
Turn scraper
clockwise until all
carbon is removed
…or you’ll damage
the cylinder
Make sure the tool
is seated right…
I’m all
stopped
up with
carbon!
Ream plug
and…
…barrel gas
port hole
gunners!
If you
forget
your M240 machine gun's
gas system…
If gas can't go
where it's
supposed
to go in the M240's
gas system,…
…then rounds
don't chamber
and you
don't
fire!
“CLP actually
turns into
carbon
because of the
heat produced
during firing.”
“One cleaning
product to
avoid
is CLP.”
If you
can't
remove all the
carbon, tell
your armorer.
He can use
dry cleaning
solvent
to
remove the
rest.
591. 44-45 (X)
1/8/02
2:02 PM
Page 1
Back to TopBack to Top
