PS Magazine - TB 43-PS-679
PS, The Preventative Maintenance Monthly
ISSUE 679
JUNE 2009
18
PS 679
JUN 09
19
PS 679
all Charged Up
and Ready to Go!
Repairmen
First, get a hand-held battery load tester, NSN 6130-01-447-7294. It will quickly
tell you a battery’s state of charge or if it’s bad.
If you add distilled water to a battery, charge the battery before you test it. That
mixes the water and electrolyte so that you get a good reading.
To charge the batteries,
start the HMMWV and run
it for 20 minutes at 1,200-
1,500 rpm. Then test and
charge longer if necessary.
Once the Avenger is properly
charged, have the operators
charge
the
batteries
for
20 minutes during weekly
services.
Of course, all that charging won’t do much good if the HMMWV charging system
is in bad shape. At least every six months, test the charging system like it says in
Para 2-29 in TM 9-2320-280-20-1.
and Ready to Go!
Avenger Missile
System…
all Charged Up
and Ready to Go!
an avenger with
even just one
weak battery is an
avenger ready to
give you problems.
if
your
avenger doesn’t
have
all
of its batteries
charged up and ready to
go, expect bIt faults
and power supply or
distribution problems.
so the most
productive
avenger
pmcs you can
perform is on
the batteries.
I’m going
to need
at least
20 minutes
of running
before I’m
charged
again!
I just don’t seem
to have any energy.
I don’t know if I’m
fit to fire.
Of course
you have no
energy!
Your crew
forgot the
importance of
battery PM!
679.18-19.indd
1-2
5/4/09
5:51:03 PM
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