PS Magazine - TB 43-PS-701

PS, The Preventative Maintenance Monthly

ISSUE 701

APRIL 2011
PS Magazine - TB 43-PS-701 - Page 16 of 33
28
PS 701
APR 11
29
PS 701
APR 11
gas tube and locking lugs
If they get too gunked up, bolt action slows. Use
your chamber brush to loosen carbon around the
lugs. Then clean the lugs and under the gas tube
with a pipe cleaner and CLP.
BORE
A good cleaning begins with the
bore. Carbon quickly builds up
there during firing. First swab
out the barrel with a patch
moistened with CLP to loosen
carbon. Change the patch
attachment to the brush and
remove the rod’s handle.
Drop the end of the rod
without the brush in the
chamber end with the barrel
pointing down. Reattach the
handle to the end of the rod
sticking out the muzzle and pull
the rod all the way through. Let
the section with the bore brush
turn as you pull it through. That
way the brush bristles follow
the rifling grooves. Don’t pull
the bore brush through a dry
bore or reverse direction. That
damages the brush.
Repeat this brush process
until all the carbon is gone,
periodically running a patch
moistened with CLP through
the bore to help clean out the
carbon.
bolt and
bolt carrier
Clean carbon from
the bolt and bolt
carrier with a worn
bore brush, CLP, and
a pipe cleaner. Use a
pipe cleaner to clean
out tight areas like
inside the carrier key.
Make sure the gaps
in the bolt’s gas rings
are staggered. If
they’re lined up, too
much gas escapes
and the bolt won’t
be pushed back to
the lock position.
Stagger the gaps as
necessary.
I’m contacting the
ps office stateside…
they’ll transmit all
the latest info.
we better
move on
this, connie.
let’s begin with
the cleaning
basics.
at the ps office…
right,
bonnie.
half-
mast
needs
it.
Use a pipe
cleaner in
tight areas.
Stagger
the bolt ring
gaps.
Pull
bore
brush
through
muzzle
Clean
under gas
tube and…
…around
locking lugs
Here’s
the info
on gas
tubes
and
locking
lugs.
701.28-29.indd
1-2
3/1/11
11:53 AM
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