PS Magazine - TB 43-PS-730
PS, The Preventative Maintenance Monthly
ISSUE 730
SEPTEMBER 2013
36
PS 730
SEP 13
Don’t use CLP–ever!
CLP
should
never
be
used on the MK 19. It
is not strong enough to
withstand
the
heat
the
MK 19 produces and will
actually gum up the gun’s
moving parts. And it can
degrade the grease that’s
in the MK 19’s bearings.
The best lube choice
is LSAT. NSN 9150-00-
949-0323 gets 8 ounces
and
NSN
9150-01-109-
7793
brings
1
pound.
GMD is the other choice.
NSN
gets
a
14-oz
tube
and
NSN
a 6
1
/
2
-lb can.
But remember, you can’t interchange lubes. Stick with one. If you do need to
switch to a different one, completely wipe off the old lube Frst. Mixing lubes
weakens them.
When you go to the Feld, take the LSAT or GMD with you. They won’t do much
good sitting in the arms room.
Lubing to remember.
When
you are lubing with LSAT or
GMD, give extra attention to
the
feed
pawls,
the
cocking
lever rails, the pivot posts on the
primary drive lever and the bolt
assembly. If just one of those
doesn’t get enough lube, you’ll
have trouble Fring.
Disassembly don’ts.
When you take your MK 19 apart, don’t be rough. It’s easy to
damage things like the roller bearings on top of the bolt or the vertical cam assembly.
If you touch the vertical
cam, wipe it clean ASAP. The
oil in your skin can cause rust
in the cam and then it’s ruined.
If the cam has pits, nicks or
aluminum buildup that can’t
be removed with crocus cloth,
it needs to be replaced.
Hands off the safety wire
securing the two nuts in the
bolt. If the safety wire is cut,
the screws start working loose
and then the bolt malfunctions.
If the nuts are missing their
safety wire, report it.
MK 19
Machine
Gun…
On
Target
with
PM!
Wipe vertical
cam clean
and lube it
Bolt nuts
safety-
wired?
Pay attention to
cocking lever
rails when
lubing
Leave!
leave
and
never
come
back!
the mk 19
machine gun will
stay on target
if
you target it
with this pm…
what a big
difference
pm makes.
bulls-
eye!
we don’t
get along
and we
never
will!
we’re what
your mk 19
needs!
730 36-37.indd
1-2
7/30/13
1:55 PM
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