PS Magazine - TB 43-PS-708
PS, The Preventative Maintenance Monthly
ISSUE 708
NOVEMBER 2011
4
PS 708
NOV 11
Keep
on the
Outside
C
rewmen, you’d be surprised how much water can collect in the hull of your Stryker. It
drips off wet boots and uniforms, trickles in through open hatches, is left behind after
leaving the wash rack, and seeps in through loose hull drain plugs during fording.
The Problem
Water can take three forms—solid, liquid and gas. All three create problems for
your Stryker.
Solid:
If you’re in a cold-weather
environment, the water in the hull
and under the floor plates freezes.
Since water expands as it freezes,
lines and fittings are ruptured,
causing all kinds of damage.
Liquid:
Water under the floor
plates will rust the ramp chains;
connectors on the air, hydraulic
and fuel lines; the ABS system; and
pretty much anything else that’s
made of metal.
Gas:
As temperatures go up, the water evaporates and condenses on radios and other
electronic gear. Enough moisture can short out electronic equipment.
The Solution
The only way to empty that water is to open the hull drain plugs on the bottom of your
Stryker. There are quite a few plugs, so make sure you open all of them or you’ll leave
water behind.
Make sure any water drained from the hull goes into a drip pan and is disposed of
according to your unit’s SOP.
Of course, you don’t want water to get back in through the plugs, so make sure you
reinstall ‘em before operation. And do it right. Plugs that are too loose will vibrate free.
Plugs that are too tight are hard to open and are more likely to be left closed when
draining is needed again.
Apply a little anti-seize com-
pound, NSN 8030-01-087-8254, to
the threads before installing the
plugs. That lets you tighten the
plugs enough to keep them from
vibrating loose, but makes them
easier to open next time.
Just make sure you put the
compound on each plug’s threads
and the threaded portion of the
hull. That way, all the threads are
coated and the plugs won’t stick.
water
Stryker…
Keep
WATER
on the
Outside
Water under floor plates rusts metal fttings
Apply
anti-seize
compound
here…
…and
here
man, it’s
really
cuh-cold
out
today!
you
suh-
said
it! The
wuh-water
in
m-my
hull
is
fuh-fuh-
frozen suh-
solid!
708 04-05.indd
1-2
9/26/11
5:48 PM
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