PS Magazine - TB 43-PS-555
PS, The Preventative Maintenance Monthly
ISSUE 555
FEBRUARY 1999
them off before you apply TW-25B.
They hurt the TW-25B’s effectiveness.
Use this guide for how much to lube
and what to apply it with:
Light
—white grease is slightly vis-
ible. Use a small brush or cleaning
patch. They’re part of the Avenger BII.
Moderate
—grease is visible. Use
a brush or patch.
Heavy
—grease is plentiful. Use a
large brush.
For firing, lube all parts as shown.
When the M3P is going to the arms
room, give all the parts a light lube only.
During firing, the barrel extension of-
ten becomes sticky and gritty. That
makes it difficult for the bolt to move
and the M3P to fire. But you can clean
the extension while the gun is mounted.
Let the gun cool enough so it’s safe to
touch. Follow the steps for reloading
until reaching the point where the feed
cover’s up. Make sure the ARM switch
is set to SAFE so the bolt is locked to
the rear by the remote charger.
Heavy
Moderate
Light
Light
Moderate
Light
No lube
*
*
*
Moderate
Moderate
Moderate
No lube
on front
of bolt
Light
Light
Light
Heavy
Moderate
No lube
Light
or your Avenger’s M3P machine gun
to fire smoothly, you need to keep its
parts moving smoothly with proper
lubing.
Rule No. 1 when lubing the M3P is
to use only TW-25B lubricant, NSN
9150-01-439-0859. The usual gun
lubes—CLP or LSA—won’t do the job.
The only exception is the elastic cradle,
which is lubed with LSA.
If any other lubricants or solvents
have gotten on the M3P during main-
tenance of the rest of the Avenger, wipe
Machine gun lubrication
PS 555
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FEB 99
PS 555
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FEB 99
Moderate
No lube
Heavy
Light
Use a clean rag wrapped around a
stick to check inside the barrel exten-
sion, especially along the inner walls.
Be careful—the barrel grooves can be
razor sharp. If the extension is sticky
or gritty, clean it with the rag. Use a
small brush to apply a moderate coat
of TW-25B. If the inside of the exten-
sion is dry, just lube it.
Check the extension after every
1,250 rounds fired.
After lubing the M3P, always cycle
the gun to spread the lube.
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