PS Magazine - TB 43-PS-557
PS, The Preventative Maintenance Monthly
ISSUE 557
APRIL 1999
PS 557
43
APR 99
AN/PDR-75 Radiac Set . . .
Calibrate the CP-696 before each
use. Otherwise, you get bad readings.
If the key used to turn the calibration
screws breaks or is lost, don’t order
a new one for $14. Substitute a small
flat-tip screwdriver. It works just as
well.
Calibrate
before
reading
Close
drawer
before
operating
CP-696
are used to read the dosimeter and they
can cause cataracts.
Wear
dosimeter
on
dominant
wrist
Remember, you must wait 24 hours
after a dosimeter’s been worn before
checking it. If you check it earlier, you
get bad readings.
Close the dosimeter drawer on the
CP-696 when you’re taking a reading
and never look in the drawer while the
CP-696 is turned on. Ultraviolet rays
VOS
Make operating the MM1 easier by getting
a copy of “MM1 Operational Procedures”.
It lists the MM1 startup and shutdown proce-
dures in an easy-to-follow booklet. Contact
Half-Mast if you need a copy.
Never spray water into the NBC area of
the Fox. That damages expensive electronic
components like the MM1. If you must
clean, use a sponge and bucket.
t
t
t
Need a copy? Tell Half-Mast
PS 557
with
pm
, i'm
fearless
!
42
Don’t step on VOS!
The biggest threat to the vehicle orientation
system (VOS) is your feet. Watch where you’re
stepping when you climb in the commander’s side.
If your VOS gives you faults instead of
locations, try special mode 799. It reboots the
VOS and gives it a fresh start. To access 799, press:
SELECT
➡
5
➡
INPUT
➡
7,9,9
➡
ENTER
➡
7,7,9,9
When the VOS is finished rebooting, input these
values: 701, 704, 727, 729. After using special
mode 799, you may need to re-initialize the VOS like it says on Page 2-16 in
TM 3-6665-342-10.
If you’re getting fault 64 a lot, try turning off the VOS for 10 seconds and then
turning it back on. That often does the trick. If it doesn’t, go into special mode
701 and check that you have the proper gyro number. Change the gyro number if
necessary. If that doesn’t work, tell your repairman.
i'm detecting
radiation--thanks
to
pm
!
t
he AN/PDR-75 radiac set will stay
on the radiation trail if you NBC NCOs
keep track of these radiac reminders:
Have your soldiers wear the dosim-
eter on their right wrists if they’re
right-handed or left wrist if they’re
left-handed. That way the dosimeter
receives maximum exposure and gives
a truer reading.
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