PS Magazine - TB 43-PS-556
PS, The Preventative Maintenance Monthly
ISSUE 556
MARCH 1999
Pull
hood
back
with
fingers
spread
and
thumbs
along
jawline
Place
hands
together,
palm-to-
palm
peed is vital when it comes to put-
ting on your M40 or M42 mask. Being
just a few seconds slow could be fatal.
Here are some ways to make masking
quicker:
When you take off your mask,
loosen the cheek straps so that their
metal ends stick out one inch past the
buckles. That gives the straps just the
M40-, M42-Series Masks . . .
he new AN/PDR-77 radiac set is
the most sensitive radiation device the
Army has ever fielded. But it will be
about as sensitive as a drill sergeant if
you don’t remember a few things about
handling and PM:
The $600 crystal on the bottom of
the x-ray probe is fragile. Even setting
the probe down hard can break it, so
be careful
!
Handle the probe gently
and keep it in its case when you’re not
probing.
AN/PDR-77 Radiac Set . . .
Remember to remove the batteries
when you finish your mission. Left in,
the batteries can leak and damage the
probe or meter.
Before a mission, check both battery
compartments for corrosion that can
block power. Wipe out any corrosion
with a pencil eraser and a clean cloth.
Use PEAK ALIGN only for extreme
cold—below 4
°
F. That assures the
probe’s accuracy.
Turn off the AN/PDR-77 before
switching probes. If you forget, you
could short out the system when you
install the new probe. Plus, the radiac
set will think you’re still detecting in
the previous mode.
Use new 9-volt batteries and take
extras to the field. Put three in the
meter, two in the x-ray probe, and five
extras in the storage compartment. The
radiac set can eat up batteries fast if
you’re doing much detecting.
Be careful—crystal is fragile
Use fresh batteries and take extras
Stow your mask upright in the
carrier with the eyelenses facing away
from the body. Then you can pull the
mask out of the carrier and put it on
without having to turn it over.
right looseness. If the straps are left
tighter, you have trouble getting the
harness over your head. If they’re
looser, you lose time groping for the
strap ends when you put on the mask,
especially when you have gloves on.
After you seal and clear your mask,
tilt your head slightly forward and put
your hands in a praying posture inside
the hood. With both hands’ fingers
spread, pull the hood over your head
with the thumbs following the lines of
the jaw. This stretches the hood’s elas-
tic band so it doesn’t hang up on the
canister.
Pull tip 1 inch beyond buckle
i'll
never
get this thing
on
!!
➥
➥
our
radiac
sets
have no
sensitivity
.
Just like
sergeant
m
c
gruff.
➥
Clean out corrosion
PS 556
45
MAR 99
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