PS Magazine - TB 43-PS-669

PS, The Preventative Maintenance Monthly

ISSUE 669

AUGUST 2008
PS Magazine - TB 43-PS-669 - Page 8 of 33
13
PS 669
AUG 08
Y
ou’ve probably noticed the label on
your vehicle’s lead-acid battery. You
know, the one with the removable tabs
for month and year.
You’re
supposed
to
remove
the
appropriate tabs when you install the
battery. That way, if and when the battery
goes dead, you know if it died before
its time.
But too many operators aren’t taking
advantage of the label. It only takes a
few seconds. And when that battery fails,
you’ll be glad you remembered to do it.
Y
ou’ve just deployed to the sandbox again, but this time something’s different.
There’s a new vehicle in your unit’s motor pool. Now you have the IMG mine
resistant ambush protected (MRAP) vehicle, NSN 2355-01-553-4634.
Whenever a new vehicle comes on the scene, the challenge of maintaining it
comes right along with it. And knowing how to remove and install the battery is a
basic maintenance task that you mechanics ought to know.
Not sure how to do this on the MRAP? You have to follow the right instructions,
or you could blow the transmission control module 10-AMP fuse. Then you won’t
be able to start your engine. The battery cable disconnect procedures aren’t correct in
the TMs, so here’s the solution for you.
Removing the Battery
1. Disconnect the clean power harness connectors.
2.
Disconnect the ground terminal. The conduit is black.
3.
Disconnect the positive 24-volt terminal. It has a blue conduit.
4.
Disconnect the remaining battery terminals.
5.
Remove the battery hold-down clamp.
6.
Remove the batteries.
Installing the Battery
1.
Install the batteries.
2.
Install the battery hold-down clamp.
3.
Connect the positive 24-volt terminal, shown with the blue conduit.
4.
Connect the remaining cables.
5.
Connect the ground terminal, shown with the black conduit.
6. Connect the clean power harness connectors.
Y
ou’ve probably noticed the label on
your vehicle’s lead-acid battery. You
know, the one with the removable tabs
for month and year.
You’re
supposed
to
remove
the
appropriate tabs when you install the
battery. That way, if and when the battery
goes dead, you know if it died before
its time.
But too many operators aren’t taking
advantage of the label. It only takes a
few seconds. And when that battery fails,
you’ll be glad you remembered to do it.
For more information on this, eyeball TACOM LCMC’s MAM 08-017. You can
view it on the AEPS website using your AKO user name and password:
MRAP…
Battery Removal
and Installation
Lead-Acid Batteries…
Use the
Label!
Remove tabs to mark
installation date
looks
like the
batteries
died!
but I
just
installed those
batteries—it wasn’t
that
long ago…
…I
think?
When replacing batteries or disconnecting
battery cables on IMG MRAPs, always disconnect
clean power harness connectors frst
Clean power
harness connector
I thought you
just replaced
the batteries!
I hope it’s
not a blown
transmission
control module
10-amp fuse again.
I followed what
the tm told me!
669.12-13.indd
1-2
7/7/08
6:08:20 PM
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