PS Magazine - TB 43-PS-670

PS, The Preventative Maintenance Monthly

ISSUE 670

SEPTEMBER 2008
PS Magazine - TB 43-PS-670 - Page 14 of 33
24
PS 670
SEP 08
25
SEP 08
2.
Fully insert the coupling into the
keyhole, then rotate the round to
align with the adjoining rounds.
Dear Half-Mast,
Is there an NSN for
the M240B machine
gun’s ammo pouch? We
could sure use more of
the pouches.
SSG J.B.
T
he Army is felding a new pivoting coupling that lets MK 19 gunners link
individual grenade rounds or partial or ±ull ammo belts together without hand tools.
The new couplings are gold, not black like the old ones. Be±ore using them, heed
these warnings:
•
Do not couple target practice and high explosive rounds together. You don’t want any
confusion over what you’re Fring.
•
Do not re-couple rounds if the link is off the rotating band. The link or rotating band
may be deformed, which would cause the MK 19 to stop Fring.
•
Do not uncouple belted ammo. That can damage the coupling and keyhole.
•
Improperly linked ammo can cause the MK 19 to stop Fring.
1.
Hold the round 90° ±rom the mating round.
Align the keyhole and coupling. Use your
middle fnger to support
the coupling ±or
better control.
Dear Half-Mast,
TM 9-1010-230-23&P is confusing on what level of maintenance
should disassemble the MK 19’s top cover assembly. WP 004700-1 says
the armorer should inspect, remove and repair the top cover assembly.
But the note on the next page says not to disassemble the top cover
unless you need to replace a part. In the repair parts list on WP 010500-
3/4, it states that all the top cover repair parts are at the direct support
level. So what’s right?
D.H.
Dear Mr. D.H.,
The armorer is
not
authorized to
disassemble the top cover assembly. The
only part of the assembly the armorer
should inspect is the latch mechanism.
All repairs and disassembly of the top
cover should be done by support.
The TM will be changed to make
this clear. Thanks for
pointing this out.
Dear Sergeant J.B.,
Yes, you can order
more pouches with NSN
pouch holds
50 rounds.
3.
Tug on the newly attached round
to ensure it’s secure.
MK 19 Machine Gun…
MK 19 Machine Gun…
Who
Disassembles
Cover
Assembly?
link
rounds
like
this…
New
Coupling
for Easier
Linking
this is
good
news!
now you can add
individual rounds
to my ammo belt
or join belts.
this will
save lots
of time.
M240B Machine Gun…
Ammo
Pouch
NSN?
it says right here that
as your armorer I can
take your top cover
assembly apart.
no, no,
no!
only
support can
do that.
check
with
half-
mast.
here’s
how to
get more
ammo
pouches
for me!
Pouch comes with
Only direct support can disassemble
and repair top cover assembly
Keyhole
Coupling
670.24-25.indd
1-2
7/26/08
1:57:57 PM
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