PS Magazine - TB 43-PS-417
PS, The Preventative Maintenance Monthly
ISSUE 417
AUGUST 1987
M249 Machine Gun .±²
Your
M9
is a stUrdy weapn, but lIke
al
machine
g i
you don't Tke
c
of it, you
C
have Problems.
Us
these ±M cHecK to kEP It Fing.
<
Check the piston for burR. If tHe
piston's bUrred, your M249 will be
hard to charge.
@
Make sure all springs are there
and in good condition. If the cover
Spring's broken, the cover acT like
it wiLL s±y up. But when you clear
yOr M249, t² c³er faL´ and mybe
it'll catch your Hand. If the cover
Spring's
OK,
the cover wilL rise soµe
by iTelf when it's unLatched.
±
;f the ¶fe· spring's broken¸ the
safe· won't wo¹ and your M249
won't be safe. ºhe spring's bad if
the ¶fe· flops in and out.
Al³ t
for l»N¼
A
T
P½n
a¾eµbly's hoUsing by Pulling back
and fo¿h on the housinG. Find aÀy
loÁene¾? Âepo¿ it. It's
OK
for tHe
Piston to rotate sLightly.
²
Make sure the ca¿ridge guide
springs And feed pawl springs are in
pLace. If they're Ãissing¸ your MÄ49
wilL jaµ.
³
EyebalL Åe oPeÆÇng
r
spÈng for
flat spoT.
-
7
FeeL the front sight for Looseness.
EyebALl the Éear siGHt for hairline
cÊcks iÀ the siGHt's Ëo WHeels. If
the front sight won't stay in place-
or Ìe Ír sight În't
b
ÏdjusÐd
b·
Îuse
o
cÆcked wheelsÑaccuÆcy's
ruined.
´
Make sure the re±ining cliPs on
the takedown, pivot, handguaÉd anD
feedtÊy cover pins are aLl in place.
If A pin cliP is µi¾ing¸ the Pin could
coµe out during firing.
®
Òhen you ins
t
Ll the firiÀg Pin
sPriÓg, be sure to put the bunched
end on the Ôring Pin ÔRÕ Öthe×ise,
the spring will fly
´f
next tiµe you
reµove the bolt.
If you sPot probLeµs¸ telL your
arµorer.
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