PS Magazine - TB 43-PS-568
PS, The Preventative Maintenance Monthly
ISSUE 568
MARCH 2000
PS 568
45
PS 568
44
MAR 00
MK 19 machine guns are suffering
damage because gunners and armorers
don’t know or don’t remember what
helps or hurts the gun.
Easy does it with the rear sight
.
It’s broken more than anything else on
the MK 19. Keep the sight down when
you’re not firing. Put the sight bar down
before you put the sight down. Push in
MK19 Machine Gun . . .
tang it works out during firing and
makes the MK 19 unserviceable.
Support the bolt when you remove
it
. If you use the drive spring guides to
pull out the bolt, the weight of the bolt
bends the guides. Support the bolt with
your other hand as you pull it out of
the receiver.
Align tang with keyway before pushing in pin
Guide tray down
the elevation screw knob before you
push down the sight. If you forget any
of these steps, you may be sightless.
Guide the feed tray cover to the
latched position
. If you slam the cover
shut, it chips or breaks the cover lock.
Eventually, the cover can’t be latched.
Slamming also knocks the primary
drive lever out of alignment with the
secondary drive lever. That causes feed-
ing problems.
Remember the tang
. The feed tray
cover pin has a tang that must be
aligned with its hole’s keyway when
you install the pin. Make sure the
pin is all the way in before closing
the cover. Otherwise, you break the
tang. The pin fits, but without the
Do not dunk the sear assembly,
bolt, or ogive plunger in cleaning sol-
vent
. They are sealed assemblies, but
solvent still gets in and washes out their
lubricant. Without lube, they will be
ruined during firing. If you must use
solvent to clean them, put the solvent
on a rag or brush and use that to clean.
Remember, anytime you clean with sol-
vent you must lube the weapon again.
Solvent not only cleans away carbon,
but also lubricant. Make sure all sol-
vent is wiped off before relubing.
Push
elevation
knob
before
pushing
down
sight
he y
!!
did
you forget
everything you
knew about
mk 19
s
?!
ye-
O
-ouch!
HUH?
WHADDYA
MEAN?
Keep
the bolt,
sear and
ogive
plunger
out of
solvent!
Support bolt when removing
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