PS Magazine - TB 43-PS-683

PS, The Preventative Maintenance Monthly

ISSUE 683

OCTOBER 2009

PS Magazine - TB 43-PS-683 - Page 5 of 33
6
PS 683
OCT 09
7
PS 683
OCT 09
When you install the SAU, carefully follow this procedure to torque its screws:
Beginning with captive screw
1 and following the other seven
screws in their numbered order,
torque each of the eight screws
to 13 in-lb. Then follow the same
order to torque the screws to 26 in-
lb. This procedure ensures the SAU
won’t crack when you install it.
Direct sunlight is hard on the
RBD. When sunlight hits the RBD
lens, it breaks down the lens
protective coating. And the lens
magniFes
the
sunlight,
which
causes a focused beam to hit the
cathode ray tube. That heats up
the RBD enough to crack it.
In the heat of Iraq, you can’t keep
the Bradley’s hatches closed to block out
the sun. So the best protection you can
give the RBD is to keep its lens cap on
as much as possible. If the lens cap has
disappeared, order a new one with NSN
w
hether it gets there from rainwater or from washing your vehicle, water always
seems to collect in the hull of your M113-series vehicle. And it can cause a lot
of damage.
That water rusts the fuel
line and ramp pump Fttings
under the floor plates. Pretty
soon, leaks develop and your
vehicle is out of business!
It’s a simple matter to drain
that water. Just open the three
hull drain plugs, NSN 2590-
00-299-0739, on the bottom
of your vehicle. There are
two plugs located at the front
and one at the back.
‘Course, that water is probably going to be contaminated with fuel, oil, hydraulic
fluid or other materials that are considered hazardous waste. So follow your unit’s
SOP on where to drain the hull. That’s most likely at the wash rack, which is usually
equipped to separate fuel, oil and other materials from the water.
If the water level is low, you can also use drip pans. Just make sure you dispose of
the wastewater properly.
M2A3/M3A3-Series Bradley…
CIV PM SOP
M113-Series
±OV…
draining hull
keeps
rust
at bay
Tighten screws in this order Frst to 13 in-lb,
then to 26 in-lb
Keep lens
caps on RBD
lens as much
as possible
if only
they
would
use the
lens
cap!
Water under floor plates will rust Fttings
my hull’s so
full of water,
I’m gonna
blow!!!
The Bradley’s
commander’s
independent viewer
(CIV) won’t be
doing much viewing
if its sensor
assembly unit (SAU)
or remote biocular
display (RBD) is
damaged.
That sun
is
killing
my remote
biocular
display.
Make this
CIV PM SOP…
683.06-07.indd
1-2
8/22/09
3:39:42 PM
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