PS Magazine - TB 43-PS-731

PS, The Preventative Maintenance Monthly

ISSUE 731

OCTOBER 2013
PS Magazine - TB 43-PS-731 - Page 3 of 33
2
PS 731
OCT 13
3
PS 731
You might think you’ve come up with a “homemade tool” that’s a “better way” to
clean your M1’s cannon tube. But you better think again, unless you want to explain
why your cannon tube has to be replaced before its time.
The only approved method
of cleaning your tank’s cannon
tube is spelled out in the -10-
3 TMs. To clean the cannon,
you’ll need CLP; a bore brush,
NSN
a
chamber brush, NSN 1015-01-
511-7872; and a cleaning staff,
TM tells you exactly how to
use ‘em.
Bore
Evacuator.
Condemn
the
bore
evacuator when visible damage to the
composite
material
(e.g.,
breaks
in
the
Fberglass)
on
the
exterior
surface
(punctures, cracks, dents, severe abrasion,
distortion,
hammer
marks)
is
present.
Condemn the bore evacuator when visible
damage to the interior surface (erosion of
the resin from the Fberglass, distortion of
the metal liner away from the composite
[±ig B-7 and B-8]) is present. Nicks, burrs,
or cracks across the sealing surface (45°
chamfer on the ends) will render the bore
evacuator unserviceable. Small nicks or
burrs can be blended providing that no
more than 20 percent of the sealing surface,
resin
only–no
Fberglass,
is
removed
during the blending. Irregular distance
between the metal liner and the “end cap”
is normal as a result of the manufacturing
process (±ig B-9). A bore evacuator with
that condition is serviceable.
M1-Series
Tanks…
M1-Series
Tanks…
Bore Evacuator
Criteria Expanded
Crewmen, there’s
only
one way
to clean your
120mm cannon tube and
that’s the
right
way!
Don’t
Reinvent
Cleaning Tools
Use the right tools for cleaning
your M1’s cannon tube
Hey! what’s
all that for?
gonna try
a
new way
to
clean your
cannon!
the heck
you are!
that’s
not
what the tm
says to do!
TM 9-1000-
202-14
(Feb 99),
Evaluation of
Cannon Tubes,
comes up a
bit
short
on
condemnation
criteria for
M1-series
tank bore
evacuators.
As a result,
Para B-6
d
(3)
is being
changed to…
Unserviceable bore evacuator
Unserviceable bore evacuator
731 02-03.indd
1-2
8/23/13
1:22 PM
Click here for a copy of this article to save or email.
Click here for a copy of this article to save or email.
Back to Top
Back to Top