PS Magazine - TB 43-PS-625

PS, The Preventative Maintenance Monthly

ISSUE 625

DECEMBER 2004
PS Magazine - TB 43-PS-625 - Page 6 of 33
Dear Editor,
During our months fighting in Iraq we learned a couple of important lessons
for our Sentinels that will help other radar crews.
Seal out sand.
The doors that cover the compartments on the Sentinel do not always do
a good job of sealing out sand. The sand causes abrasions and other prob-
lems on the Sentinel’s electronic components, especially if you are dealing with
the fine sand of Southwest Asia. The Sentinel compartment doors have an
electromagnetic inter-
ference (EMI) seal/tape
installed around each
door. You cannot add
weather stripping to the
Sentinel compartment
doors without affecting
the EMI shield, which
protects the crew and
system from RF energy.
What you
can
do is try
to keep the access
doors closed as much
as possible, wipe the
compartments
clean
daily, and daily check
and clean if necessary
all the air filters.
Keep an eye on the trailer's brake fluid and
wheel hub grease.
We found the heat and
rough terrain of the
desert were tough on the
trailer. We lost one trail-
er axle because of no
grease and discovered
that the trailer needed
much more brake fluid out
there. You may need to
check the brake fluid
weekly in the desert
instead of monthly like the
PMCS in TM 9-2330-
392-14&P says.
Carefully follow the lube
instructions in Appendix
G of the TM, particularly
the ones about the wheel
hubs. The hubs may need
lubing monthly instead of
semiannually in the desert.
SGT James Lightner
PFC Scott Mitchell
HHB, 1/3 ADA
Ft Stewart, GA
PS 625
DEC 04
8
Sentinel Radar System…
(Editor’s note:
Thanks for sharing your
Sentinel tips. Sentinel crews should keep
them on their radar screens.)
Wipe out compartment daily
Brake fluid
reservoir full?
THiS DESERT
SAND AND HEAT AND
ROUGH COUNTRY
are
KiLLiNG
ME!
these two guys have
some good ideas, so
give ‘em a listen…
and
help me out!
Check trailer
wheel hubs
for grease
625.08-09(C!)
10/29/04
9:43 AM
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