PS Magazine - TB 43-PS-585
PS, The Preventative Maintenance Monthly
ISSUE 585
AUGUST 2001
PS 585
AUG 01
17
M2/M3-Series Bradleys . . .
PS 585
AUG 01
16
M1-Series Tanks . . .
Standby for Cooling
T
he T in TRU stands for thermal, gunners.
And that means heat—in more ways than one.
During those blistering hot summer days, the
thermal receiver unit (TRU) on the gunner’s pri-
mary sight has trouble coping with the heat. If
it’s left on too long, it burns out. Replacing it
sets your unit back more than $77,000!
When it’s on, the TRU cools itself only when
in standby mode. So make a habit of flipping the
THERMAL MODE switch to STBY when the
TRU is not in use. If the TRU won’t be used for
some time, flip the switch to OFF.
Your TRU will stay cooler and you can put
your maintenance bucks to better use.
rivers, the job’s not finished when you
remove and lock up your Bradley’s IR
night sight after every operation.
You still need to hook the 1W17P10
night sight cable, NSN 5995-01-271-0367,
to the dummy mount on the hatch.
H
umidity in the ammo compartment will rust and corrode onboard ammo, whether
your tank stays uploaded all the time or only during exercises.
Sure, you can slow the damage by occasionally wiping out any condensation in
the ammo compartment. But to really put the
brakes to corrosion, you’ve got to stop moisture.
A few bags of desiccant will do the trick. Just
open each ammo door and put a bag on the floor
between the ammo tube and the compartment
wall. NSN 6850-00-264-6571 gets a drum of
300 bags of desiccant.
When it’s time to pull PMCS on the hull
ammo compartment, check the desiccant bags.
Put bag of desiccant here
Put THERMAL MODE switch
in STBY to cool TRU
If you
do
forget and the cable connector
is ruined, make sure you get DS to replace
it with NSN 5935-01-132-1570. That’ll
save your unit more than $200 when com-
pared to the cost of a new cable.
Otherwise, the cable is left dangling. When
the hatch is closed, the cable connector
gets crushed.
Dangling cable
gets crushed
when hatch
is closed
If they’re
moist
to
the touch or if the
compartment walls
are
wet,
it’s time
for
new desiccant.
oops!
THERE
GOES MY
Night sight
cable!
Plug connector into dummy mount
well, I’m locked
up tight except for
my driver’s hatch…
585. 16-17
(C)
6/23/01
8:43 PM
Page 1
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