PS Magazine - TB 43-PS-740
PS, The Preventative Maintenance Monthly
ISSUE 740
JULY 2014
8
PS 740
JUL 14
9
PS 740
JUL 14
Dear Editor,
While doing scheduled services on the M777A2 howitzer, we often find the
breech pivot pin, NSN 5315-00-821-2435, frozen with rust. If the pivot
pin is frozen, the howitzer is NMC.
To
prevent
this,
we
suggest
units
check
the breech block roller
to make sure it’s rolling
freely. If it’s not, it could
prevent the breech from
locking. Lube the pivot pin
and roller with CLP, NSN
If the roller still won’t roll
freely, report it to your
repairman.
Lube the pivot pin and
breech
block
roller
at
least quarterly to prevent
a frozen pivot pin.
Another good way to
protect the breech from
corrosion
is
to
make
sure the breech cover,
NSN
1025-01-529-
4351, is in good shape
and
installed
when
the
howitzer is not in use.
Peter Kohler
Guenther Loeffelmann
Vilseck, Germany
Dear Half-Mast,
Somebody noticed that the BII for our vehicles has been “wandering off.”
So to secure it, everything got locked up in the motor pool building. Since
they’re part of the B
II
, all of our vehicle operator’s TMs were included in the
lockup.
Problem is, we can’t get to the TMs when it’s time to do our PMCS. We
often end up working from memory. That doesn’t seem like a good idea to me.
What do you think?
SPC T.W.C.
Dear Specialist T.W.C.,
I wholeheartedly agree. TMs are vital if
Soldiers are going to pull a complete and
accurate PMCS. It’s never a good idea to
rely on memory when it comes to keeping
your equipment and vehicles up-to-snuff.
A better idea is to lock those TMs inside
your vehicle. Since you’ll need to get
inside the vehicle to do a complete PMCS
anyway, the TMs will be easily accessible
while keeping them from “wandering off.”
BAD
Keep Breech Pivot Pivoting
Combat and Tactical Vehicles…
Keep Breech Pivot Pivoting
Locking Up TMs is a
BAD
Idea
Editor’s note:
Great idea!
You guys are on your toes.
Apply CLP
here to
keep breech
pivot pin
and breech
block roller
moving
freely
Install
breech
cover
when
howitzer
is not
being
used
Operator’s TM must
be accessibe for PMCS
uh-Oh!
my breEch
Pivot pin
has
froZen
with rust!
looks
like I’m
NMC.
I think these
repairmen in
GermAny may
have a way to
prevent
that!
Hey, Matthews.
Where’s your
operator’s TM?
it’s locked up
in the building
and I
really
need it to do a
good PMCS!
M777A2 Towed Howitzer…
740 08-09.indd
1-2
5/22/14
3:40 PM
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