PS Magazine - TB 43-PS-672
PS, The Preventative Maintenance Monthly
ISSUE 672
NOVEMBER 2008
37
PS 672
NOV 08
To prevent sand buildup and extend gun use, the
TACOM head shed says it’s OK to use TW-25B as an
alternate lubricant on the flex-chute, the rails of the
ammo handling system, and components in the gun’s
receiver assembly.
First, you should always clean old grease off parts
with isopropyl alcohol before applying TW-25B.
When you touch up gun parts like the roller chain,
drive gear/bearing, and the bearing surfaces where the
rotor mates, apply heavy lubricant. Use a brush, caulk or
grease gun, or bearing packer to apply it. When you’re
±nished, white grease should be visible and plentiful.
P/N
NSN 9150-01
Size
-448-2266
-439-0859
-439-1873
-448-2298
-439-0858
-535-8338
-535-8687
-439-1864
-439-0857
TW25B-1SY12
TW25B-1SP11
TW25B-4SP14
TW25B-CA16EP
TW25B-1JSL16
TW25B-1JSL17
TW25B-1JSL18
TW25B-INC17
TW25B-6NZ17
0.5 oz syringe
1.5 oz tube
4 oz tube
16.9 oz EP spray
8 oz jar
16 oz jar
32 oz jar
16 oz caulk
16 oz cartridge
For the forward and aft tracks,
bolt and cam area, bolt locking lugs,
receiver walls, breech, barrel support,
gun support bearings, and ammo
rails, use a brush, cloth, or syringe and
apply a light to moderate amount of
lubricant. When done, white grease
should be slightly visible.
Make sure you don’t get lubricant
on areas of the feeders that contact
the
ammunition,
and
limit
the
amount you apply to areas that the
feeders slide on.
lubrication options
for your gun
if you need more info
from the head shed,
contact nate birks at
(309)
7
82-
3589
,
dsn
7
93-3589 or email
nate.birks@us.army.mil
order the lubricant oil
you need for the type of
maintenance being done
and follow the application
instructions to the tee.
order
from this
list.
mechanics, in the
desert the 30mm gun
on your ah-64 needs
all the help it can
get to stop sand
from ruining its day.
I’m going
in for a
grease job!
Use TW-25B on gun parts such as the rail…
…and on the roller chain
30 MM Gun…
Keep in mind that you should still use
Moly-B lubricant, NSN 9150-00-
7
54-2595,
on parts of the gun not exposed to sand
or where sand does not get in, like on
the constant speed drive.
hey, bub! I
don’t think
you have to
have a needle
on that thing
just to add
some lube!
672.36-37.indd
1-2
9/19/08
5:06:17 PM
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