PS Magazine - TB 43-PS-630
PS, The Preventative Maintenance Monthly
ISSUE 630
MAY 2005
Battery Box Checkup
621B Scraper…
you ready for
your battery
checkup?
O
perators, your scraper’s batteries and battery box need their checkups every so
often, just like you do.
The box collects sand and dirt that
turns into mud during wet weather. Mud
holds moisture that can close the circuit
between the positive and negative termi-
nals. A closed circuit causes the batter-
ies to discharge and die.
With the box open, remove any sand
you find. Then make sure the foam pads
on the box’s access doors are in place.
The pads keep the doors from touching
the battery clamps, battery posts and the
box’s support. Without the pads in
place, the batteries can be shorted out.
If a pad is torn or missing, your
mechanic can replace it. NSN 9320-00-
060-9363 brings a 24 x 24-in rubber
sheet. Keep the pads in place with adhe-
sive, NSN 8040-00-142-9193. This
NSN will bring you ten 1-oz bottles.
Any time the batteries are removed, eyeball the condition of the battery box. Mop
up any moisture you find in the bottom of the box. It could cause the box to rust.
Your mechanic can use a wire brush to scrape off rust and old paint. After clean-
ing, protect the bare metal inside the box with bituminous coating compound, NSN
clean out
dirt and sand
before
it
gets packed in!
Battery box pads in place?
PS 630
MAY 05
27
PS 630
MAY 05
26
OK. Fort Watkin’s
Organization Day
Boat Race is
about to begin.
You three
teams will be
competing for
the battalion
trophy.
Alpha Unit gives
us Private Jones,
PFC Miller and
Specialist
Hernandez…
…Representing
Delta Unit is
private Chang,
PFC Johnson,
and private
Williams.
…and the
Omega Team
is Sergeant
Palmer, PFC
Jones, and
private Sims.
630.26-27(C)
3/28/05
8:32 PM
Page 1
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