PS Magazine - TB 43-PS-555
PS, The Preventative Maintenance Monthly
ISSUE 555
FEBRUARY 1999
Dear Sergeant J.P.B.,
Good question! There were some 12-blade fans bought and mixed in with the
13-blade fans. As long as they are marked with PN 12268231, they work fine.
However, there are also some 12-blade fans out there that were used on the old
M109. This fan, NSN 4140-00-756-
3612, is stamped with PN 7768905
and is lubed with grease instead of
oil.
Don’t use it
.
It does not cool as well as the new
12- and 13-blade fans. You may not
notice a problem in regions with
moderate temperatures, but de-
ploying to a desert area could result
in overheating and engine damage.
Dear Editor,
During field exercises, there’s a constant flow of traffic in and out of
the command post carrier. Before long, the floor is covered with dirt, mud
and oil. Footing on the metal floor plates becomes treacherous.
We’ve solved this slippery problem by putting down ribbed rubber
matting. Even when it’s wet and muddy, the matting provides better
footing than the metal floor.
The matting is easy to remove and hose off, too. It makes cleaning the
carrier a lot easier when the exercise is over.
Ribbed matting comes in rolls that are 36 inches wide by
1
/
8
inch thick.
A 30-ft long roll comes with NSN 7220-00-753-2982. Use NSN 7220-
00-254-4240 to get a 75-ft long roll. Just roll it out and cut it to fit.
SPC James Warner
6/32d FA
Ft Sill, OK
Dear Half-Mast,
We just received a new
vaneaxial fan, NSN 4140-
01-284-5722, to replace
the broken one in our
M109A6 Paladin.
The new fan has only 12
blades, not 13 like the one
it’s supposed to replace.
Is it OK to use?
SGT J.P.B.
Compressed Air
N
eed a quick, simple way to clean dust off your optics while avoiding the risk
of scratches? Compressed air does the job. A 10-oz can of compressed air comes
with NSN 6850-01-368-4797. Order it on a DD Form 1348-6 from RIC GSA
and put “NSN not on AMDF” in the Remarks block.
You’re really on a roll with that
idea!
M577-Series, M1068 Command Post Carriers . . .
M109-Series SP Howitzers, M992-Series Ammo Carriers . . .
hey, am
i getting the
red carpet
treatment
?
well, not
exactly, but
i think yo
u'll
like it
.
thirteen
is my
lucky
number
!
twelve
isn't bad either-
-
sometimes
!
PS 555
21
FEB 99
PS 555
20
FEB 99
Use oil-lubed 12- or 13-blade fans.
..
...not grease-lubed ones
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