PS Magazine - TB 43-PS-593
PS, The Preventative Maintenance Monthly
ISSUE 593
APRIL 2002
PS 593
APR 02
45
M2 Machine Gun…
J
amming might be great at a rock concert or on the basketball floor, but it's not
great when you assemble your M2 machine gun.
If you jam on the M2's backplate assembly again and again, it wears out the lock-
ing latch. Then the backplate could come off when you lift up on the backplate han-
dles. If the M2's cocked, the op rod shoots out like a rocket. If you're in the way, that
could severely limit your life possibilities.
To properly install the backplate, fit it on
the receiver grooves, then pull back the
latch lock while lifting up on the latch.
Slide the backplate down until it locks in
the receiver.
Never use backplate handles to carry the
M2. If the backplate latches fail, the M2
takes a tumble, maybe onto your foot. The
best way to carry the M2 is to get a buddy
to hold the barrel support while you hold
the receiver.
PS 593
APR 02
44
M249 Machine Gun…
A
little PM on your part will
smooth out sighting and extracting
on your M249 machine gun.
If the rear sight moves like it has
arthritis, don't wait for your armorer
to fix it. Do it yourself!
Attack the sight with a tooth-
brush. Brush the sight until you've
removed dirt or sand that's jamming
moving parts. Then put a couple of
drops of CLP on both the windage
and elevation knobs and work the
knobs back and forth until they
move smoothly.
If the knobs are still difficult to
move, the sight needs to be taken
apart by your armorer and cleaned.
The pin that holds the extractor in
place can work out. Then your
M249 can jam and leave you with a
stuck live round. When you do your
before-operation PMCS, eyeball the
extractor pin. If it's working out, tell
your armorer. He may need to have
support put in a new pin.
That’s
smooth,
my
man. thanks
for the
sight pm!
Clean rear sight
with toothbrush
Put CLP on windage
and elevation knobs
Pin working
out?
Pull back
on latch
lock while
lifting latch
NO JAMMING ALLOWED!
stop that!
you’re wearing out
my locking latch!
don’t abuse
your m2,
guys. or it
could turn
you into a
shishkabob!
jam it enough
times and I can
do
you
some
real
Damage!
let’s just
jam this back-
plate on!
593. 44-45 (C)
3/1/02
5:32 PM
Page 1
Back to TopBack to Top
