PS Magazine - TB 43-PS-667
PS, The Preventative Maintenance Monthly
ISSUE 667
JUNE 2008
13
PS 667
JUNE 08
PMCS
To do a PMCS that gives you an
accurate diagnosis of your Sentinel,
you need to power it up until the
TRANSMITTER
READY
light
comes on and then rotate the radar.
If you don’t give the Sentinel that
much time, it won’t have enough
time to show you faults. You won’t
discover problems until you’re ready
to operate for real.
In the desert, clean all seven Flters
daily, even if you’re not operating
daily. Blowing sand can quickly clog
them and that leads to overheating
and transmitting faults.
Remember, trailer PM for the
Sentinel is important, too. Some
units disagree who’s responsible
for the trailer, the vehicle mechanic
or Sentinel repairmen. As a result,
no one services the trailer. But if
it can’t go anywhere, neither can
the Sentinel.
On the Level
The Sentinel needs to be level
to operate. So when you emplace
it, try to put it on as solid ground
as possible. In the desert, that’s not
always possible. In those cases,
put something solid under the jack
pad, such as a flat piece of metal
or sturdy plywood, to increase the
footprint of the jack pad. Use heavy duty
materials that can support the weight of
the trailer.
When you’re Fnished checking the
circular levels, put their caps back on.
If the gauges are left exposed, sun and
moisture can ruin them.
Reel Facts
It can be very discouraging to look back
while on the road and see the Sentinel’s data
cable reel unreeling. Before hitting the road,
make sure all cable reel straps are fastened
and the cable reel nuts are tightly locked. Also
check that both cables have their protective
caps installed so that their connectors don’t
Fnish the trip plugged up.
The power cable reel has a cotter pin
to keep the reel’s hub bolt tight. If the
pin’s missing, the bolt can work loose
and the reel takes a tumble. Check that
the cotter pin is installed and its ends
are bent so it can’t work its way out.
PM
can have a powerful effect on your Sentinel’s ability to alert you to the enemy.
Here’s how you can tap in to the power of positive PM:
Carefully follow the lube
instructions in Appendix G
of
TM
9-2330-392-14&P,
particularly
the
part
about
the wheel hubs. In the desert,
they may need lubing monthly
instead of semiannually. Check
the brake fluid more frequently
in the desert, too.
Sentinel Radar System…
The Power of Positive PM
I’ve decided
to use the
power of
positive pm.
I see
powerful
results
ahead
for us!
Wait until TRANSMITTER READY
light comes on before doing PMCS
Clean all seven Flters daily in desert
Wheel hubs
need lubing
more often
in desert
Reel
straps
tightly
locked?
Cotter pin
in place and
ends bent?
Put circular level
caps back on
hey,
charlie!
I’m
s’posed to be
level!
667.12-13.indd
1-2
5/5/08
6:13:13 PM
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