PS Magazine - TB 43-PS-560
PS, The Preventative Maintenance Monthly
ISSUE 560
JULY 1999
PS 560
52
JUL 99
CECOM Safety-of-Use Message
(SOUM) 92-02-01 said to apply MWO
11-5985-357-30-1 to the OE-254 an-
tenna, NSN 5985-01-063-1574.
The MWO extends the life of the
antenna support sleeves, mast sections,
and mast and base assembly by elimi-
nating a cause of stress cracks.
But some antennas never got modi-
fied since many units were deployed
to Operation Desert Storm when the
MWO came out. So, CECOM reissued
the SOUM in Mar 96.
Now another problem has surfaced.
All the antennas in the supply system
were bought before the MWO was first
issued. Depot maintenance tried to
modify all existing antenna stock, but
OE-254 Antenna
. . .
E
ver wish your AN/ASM-146 main-
tenance shelter had the workhorse ca-
pabilities of the AN/ASM-189 van?
Well, the CECOM genies have
granted that wish.
You can now add a more powerful
DC power supply (100 amps) and a
variable frequency converter to your
shelter.
Both are off-the-shelf and state-
of-the-art. You can also upgrade the
main electrical service, the power en-
trance box and the power distribution
box.
This modification upgrade is no free-
bie, though. It will have to come out of
your unit’s funds.
For more info on this mod, call
CECOM at DSN 992-5549.
Or e-mail
them at:
Shedlock@mail1.monmouth.army.mil
some unmodified antennas slipped
through.
So check out your OE-254 to make
sure the MWO has been done. If the
MWO has been done, the tabs and
notches will be removed from the mast
sections. If your mast still has its tabs
and notches, send it off to support for
the MWO. Also send the mast and base
assembly and the two antenna support
sleeves.
ve vant
you
to
pump us up!
p
u
mp
pump
let's get
this antenna
set up
.
first, let's
check
the
mast
to see if its been
modified
.
Tabs? Notches?
If yes, turn them in
AN/ASM-146 Shelter . . .
It’s Time to PUMP Them Up
Before you send it off, though, check
it over.
Inspect the antenna mast section
poles for stress cracks at the squared
corners of the notch. If you find any
cracks that extend more than 2
1
/
2
inches from the bottom of the pole, it
can’t be modified, so just turn it in and
get a new one.
The modified mast will be one sec-
tion shorter, but will transmit as well
as ever and last longer, too.
If support doesn’t have a copy of the
MWO, they can get it from the local
CECOM Logistics Assistance Repre-
sentative or from Half-Mast.
i'm
hans
und he's
franz
.
PS 560
53
JUL 99
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