PS Magazine - TB 43-PS-611
PS, The Preventative Maintenance Monthly
ISSUE 611
OCTOBER 2003
For detailed instructions on how to
install the modified shield and guard, con-
tact TACOM-Rock Island’s Steve Stroyan
at DSN 793-2777 or (309) 782-2777. His
email address is:
stroyans@ria.army.mil
1
1
1
3
Item
NSN
Qty
Lubrication fitting
Shield assembly
Elastic cord assembly
Guard
Here
are the
parts
you’ll
need…
M
echanics, you need to take note of a new
PMCS semiannual breech check that was
added to TM 9-2350-264-20-2-1 (Feb 03).
The new check is Item 14 on Page 2-32.
Without it, main gun accuracy degrades
until it becomes difficult to hit a target.
First, you’ll need to fabricate the piston
seating gauge shown on Page D-11 of TM 9-
2350-264-20-2-4. Use gauge stock, NSN
5210-01-023-0334, to make the tool. Order
the stock on DD Form 1338-6 and put “NSN
not on AMDF” in the REMARKS block.
Once you have the stock, cut off a 6-in
long piece and paint the GO area green and
the NO GO area red.
Next, slide the gauge through the slot on
the gun mount assembly’s breech ring
adapter plate. If the GO section of the gauge
is not visible at the top edge of the breech
ring, the tank is NMC. Support will need to
adjust the gun mount.
PS 611
OCT 03
3
M1A1 Tank…
New Check for Breech
PS 611
OCT 03
2
M1A1/A2 Tanks…
A Little Lube
Wins
the Race
W
ithout proper lube, the race ring on your M1A1 or M1A2 tank will quickly come
to a grinding halt.
Trouble is, those tanks that are equipped with the new wire race ring, NSN 1015-
01-433-7999, don’t have easy access to the lubrication fittings. The harder the fit-
tings are to reach, the less likely they are to be lubed.
With your unit commander’s permission, mechanics can now fix that problem by
installing a modified shield and guard with new fittings that make lubing the race
ring during PMCS much easier.
6.00
NO GO
GO
3.00
2.50
2.00
1.38
.50
Insert
gauge
here
The tm says I
need to do a
new check on
your breech ring
adapter plate.
that’s right.
I need it to
keep my main
gun accurate!
a little
lube sure
would make
my race ring
feel better!
yeah, but
the lube
fittings are
so
hard
to reach!
Gauge measurements
are in inches
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