PS Magazine - TB 43-PS-670
PS, The Preventative Maintenance Monthly
ISSUE 670
SEPTEMBER 2008
18
PS 670
SEP 08
Check cables.
The cables
for the EU, EB, and Fre
control unit sometimes aren’t
completely
tightened
after
maintenance. Then you get
Fre control panel faults and
LDS
malfunctions,
which
can cost you troubleshooting
time Fguring out what’s the
problem. Before you Fre, make
sure all the cables to the EU, EB, and Fre control unit are tight, especially the J5 and
J7. If you start getting faults, make these EU and EB cables your Frst check.
Be careful connecting the cables. The cable connectors should slide in place easily.
If one doesn’t, check that you have it correctly aligned. Don’t force it.
No storage.
The area around
the EU and EB may look like
convenient places for storage, but
they’re deFnitely not. If you stick
stuff like chock blocks or duffel
bags there, the launcher will
crush them when it’s stowed.
Keep ‘em dry.
If water gets
inside the EB or EU, it causes
all sorts of serious electrical
problems. Keep hoses away from the
EB and EU. Never spray water on the
boxes. If you take your MLRS through
the wash rack, make sure you Frst
cover those boxes with a tarp.
Leave the lids on the EU and EB.
Only support should take off the lids. If
you remove them, the gaskets that keep
the lids watertight are ruined.
Make sure all four bolts that hold the
EB to the battery box are in place and
are tightly screwed in with the correct
washers and gaskets. Often the two
bottom bolts are forgotten and that can
let water into the EB.
MLRS…
the electronics
unit (eu) and
electronics box
(eb) are the
heart of your
mlrs.
if they have
problems,
count on your
mlrs having
major
problems.
make
these eu
and eb
checks
sop.
you
really
should
have
done a better
job
protecting
my
eu
and
eb!
Make sure EU and EB cables are tight
Don’t use area around EU and EB for storage
Leave lids on EU and EB
All four bolts in place?
670.18-19.indd
1-2
7/25/08
2:49:18 PM
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