PS Magazine - TB 43-PS-600

PS, The Preventative Maintenance Monthly

ISSUE 600

NOVEMBER 2002
PS Magazine - TB 43-PS-600 - Page 25 of 33
PS 600
47
PS 600
NOV 02
46
FED SHTU Battery…
“Keep Alive”
Goes It Alone
T
he keep alive battery (KAB),
in the forward entry device
(FED) simplified handheld ter-
minal unit (SHTU), can now be
replaced without replacing the
entire battery assembly.
But the
assembly
is
no
longer
available.
Finally!
after
twenty-four
hours
of grueling
surgery, I have
successfully
removed the
creature’s head!
Err…
master…
I should have
told you… all
you needed
to do was
replace the
battery.
Just replacing the
battery requires a
little
extra
work
on your part,
though. Here’s
how you do it…
You can
replace
just
the
battery
Until now,
replacement of the
battery required
removing and
replacing the
assembly, NSN
1.
Leave the power running
to the SHTU during KAB
replacement. That way,
you won’t lose data stored
in the RAM disk.
3.
Lift the KAB up and carefully rotate it away from
the SHTU to get to the battery leads.
4.
Unplug both battery
leads from the KAB
assembly by pulling the
connector end straight out
from the KAB assembly
jack. Don’t pull on the
wire or you could break
the connection hidden
under the shrink tubing.
5.
With diagonal pliers, clip off
the axial leads of the battery as
close to the battery as possible.
6.
Depending upon the assem-
bly you have, the battery may
be held in place in one of two
ways. Either a clip holds it, in
which case you can remove
the battery by pulling it out, or
a clamp holds it, in which case
you will need to remove the
screw holding the clamp first.
2.
Loosen the three screws holding
the assembly to the SHTU using a
cross-tip screwdriver.
7.
Put in the
new KAB
with the
positive end
nearest the
red jack
on the
assembly
cover.
Assembly, NSN
don’t
shut me
off!
600. 46-47 (C)
9/23/02
2:24 PM
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