PS Magazine - TB 43-PS-637
PS, The Preventative Maintenance Monthly
ISSUE 637
DECEMBER 2005
T
here are several configurations of the commander’s power distribution panel on
the M1A1 tank. Most of them can be tested using the direct support electrical sys-
tem test set (DSESTS) with the operator interface unit (OIU).
The only exception is the latest panel, NSN 6110-01-497-3343 (PN 12549797-3).
That panel can be tested
only
using the DSESTS with the common support function
module (CSFM) using DSPS 32.1 software.
If your unit has the new panel, but does not have the capability to test it, go to the
PM Combat Systems web site:
PS 637
DEC 05
3
M1A1, M1A2 Tanks…
M
echanics, it’s not surprising if you’re confused about what you’re supposed to
do during annual and semiannual PMCS for M1A1 and M1A2 tanks.
Why? Because only the semiannual kit, NSN 2540-01-255-3347 (PN 5705438),
was listed under
Mandatory Replacement Parts
on Page 2-9 in TMs 9-2350-264-20-
2-1 and 9-2350-288-20-2-1.
Although the annual kit, NSN 2530-01-117-7943 (PN 5705145), was left out, it’s
scheduled to appear in the next update to both TMs. Make a note until that happens.
Once you have the kits, make sure you know when and how to use them.
Semiannual PMCS must be performed every six months, every 150 vehicle operat-
ing hours, or every 1,500 miles (2,400 kilometers), whichever comes first. Annual
PMCS must be performed every 12 months, every 300 vehicle operating hours, or
every 3,000 miles (4,800 kilometers), whichever comes first.
When you perform the annual PMCS, you must also perform the semiannual
PMCS.
All parts
included in the annual and semiannual kits are
mandatory
replacement parts.
PS 637
DEC 05
2
M1A1 Tank…
it depends on
what configura-
tion you have. let
me take a look.
it’s time for
my annual pmcs,
so I need an
annual kit!
but
the tm
says to
use the
semi-
annual
kit!
you’re
both
right!
both kits
are
manda-
tory!
my power distribution
panel is on the
fritz!
can you test it?
The POCs are listed
under
Abrams
Program Management
Office and Wolverine
and
Integrated
Logistics Support.
Who Ya Gonna Call?
Once there, click on
Points of Contact in
the left-hand column.
637.02-03(C).qxd
10/31/05
8:07 PM
Page 1
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