PS Magazine - TB 43-PS-572
PS, The Preventative Maintenance Monthly
ISSUE 572
JULY 2000
PS 572
47
JUL 00
Brace door
before
unlocking
t’s rough enough to wear your
M40/M42 mask for long periods. You
don’t want to make it rougher than it
has to be.
So pay attention to the outlet valve
disc. Unless it’s seated properly, you’ll
be breathing in and out of the outlet
valve. You’ll have no protection against
real or simulated chemical agents. As
part of your before-operation PMCS,
make sure the disc is seated tight in
the outlet valve.
M40/M42-Series Masks . . .
self hoarse during a mission. The rem-
edy is the M7 amplifier, NSN 5996-
01-381-9012. It greatly amplifies your
voice and makes shouting unnecessary.
The M7 is part of the AAL for the
M40A1/M42A2 masks.
Your mask doesn’t have to be skin-
tight to protect you. In fact, if the straps
are too tight, you’ll develop a terrific
headache. After you put on the mask,
pull the harness cheek straps snug, but
don’t muscle them tight.
It’s tough to make yourself heard
with your mask on, so if you’re a squad
leader or higher, you can shout your-
Tighten straps snug, but not super-tight
Outlet valve disc seated tight?
When closing the lower door, brace
it with your foot before unlocking it.
That keeps it from flying up.
PMCS
Hydraulic and transmission fluid and
radiator coolant checks are part of
after-operation PMCS. But if your Fox
has been sitting for weeks, fluids could
have leaked. Check the ground under-
neath the drain valve for the engine
and transfer case compartment for signs
of lube or coolant leakage. Report any
leakage to your mechanic so he can
check it out, then check your fluid
levels before you leave the motor pool.
Check fluids before
leaving motor pool
PS 572
To lock the two top hatches, push
the locking handles
all
the way to
the closed position while pulling down
on the latch. If you don’t, the hatches
aren’t locked shut and they will leak.
When opening the top deck hatches,
ensure the handles are fully opened and
the locking cams are fully engaged. If
the handles aren’t in the fully opened
position, you could damage the hatch
and injure crew members.
Before you crank open the M21
hatch, make sure you’ve unlocked the
hatch’s handle. If you forget, you will
damage the crank.
Locking cams
fully engaged?
THIS IS
SOME CRAFTY
INFO!
it's
time to
move
out!
time
?
it's about
1615.
Unlock hatch handle
before cranking
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