PS Magazine - TB 43-PS-671

PS, The Preventative Maintenance Monthly

ISSUE 671

OCTOBER 2008
PS Magazine - TB 43-PS-671 - Page 17 of 33
31
PS 671
OCT 08
on my first
tour in iraq,
a guy clued
me in on using
15w/40
motor oil
instead of
clp
on my
machine gun.
he said motor oil actually
produces less carbon than
clp
during firing.
motor oil
is for your
truck,
not your
machine
gun!
motor oil
hardens
…
I heard while
I was in iraq
that a
graphite
lubricant would
work better
than
clp.
we
managed
to get
some and
everyone
in our unit
started
using it.
kill this rumor!
a guy gave us the tip
in iraq to keep the
gas plugs from our
m240 and m249s’
spare barrels
soaking in
jp-8
while
we were firing with
the other barrel.
that way the plug
will be clean
when you’re ready
to fire with the
spare barrel.
I’m glad
I soaked
that
plug in
jp-8!
soaking the gas plug in jp-8
and then using the plug without
getting all the jp-8 off makes
carbon buildup
worse.
your machine gun plugs up
quicker
and you can damage it. the way you
prevent carbon plugging up the
gas system is by
changing the
barrels
when you’re supposed to
and cleaning the gas plug with the
scraper,
Changing the
barrel helps
prevent a
plugged gas
plug.
clean the plug with
your combination
tool.
clean the piston
grooves by
scissoring the
scraper
around the
grooves.
I’m
going to
need to
change
barrels
pretty
quick.
if you continue to
use those lubes,
eventually your weapon
will be
trashed.
graphite lubricants
are
bad news
for
weapons. graphite
eats up and destroys
aluminum and other
alloys.
kill
this
rumor!
…and
makes
a
mess
of your
machine
gun.
kill this rumor!
671.30-31.indd
1-2
9/5/08
1:47:31 PM
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