PS Magazine - TB 43-PS-680
PS, The Preventative Maintenance Monthly
ISSUE 680
JULY 2009
25
PS 680
JUL 09
Before headspacing, make sure the barrel is completely screwed in the barrel
extension so that the breech end of the barrel protrudes through the barrel extension.
This is a
must
before headspacing because if the barrel isn’t completely screwed in
you’ll get bad headspacing. If the barrel can’t be screwed in completely, tell your
repairman. He can inspect the barrel extension threads for damage as shown in Step
3 of WP 0010 of TM 9-1005-213-23&P.
Another
before Fring
check gunners need to do is look for cracks in the barrel
extension. Lift the feed tray and eyeball the barrel extension side rails for cracks
around the forward corners. If you spot cracks, tell your repairman. Any M2 with
cracks should not be Fred.
Look for
Barrel
Extension
C
r
a
c
k
s
M2 Machine Gun…
Look for
Barrel
Extension
C
r
a
c
k
s
a cracked barrel extension on
your m2 machine gun can lead to
damage to both the weapon and,
more importantly,
to you.
that’s why it’s
critical
that you spot barrel
extension cracks asap.
ow!
that just
cracked
my barrel
extension!
Of course, the best course
is to operate your M2 so
you don’t cause cracks.
Gunners, look
for cracks
here.
Don’t let the bolt slam
forward on an empty
chamber or with the
barrel not installed.
That damages not only
the extension, but also
the barrel and bolt.
How
do
you
do
that?
take it easy,
willya?
you
just let my bolt
slam forward!
680.24-25.indd
1-2
6/9/09
4:45:36 PM
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