PS Magazine - TB 43-PS-610
PS, The Preventative Maintenance Monthly
ISSUE 610
SEPTEMBER 2003
Dear Editor,
We've come up with three suggestions that will help repairmen and
crews keep their MLRSs moving and shooting.
•
As MLRSs grow older, the engines often have more of a blowby prob-
lem, no matter how careful you are about proper idling. The oil from the
blowby comes out of the crankcase and drips on the hot manifold. That
makes a mess and could be a fire hazard.
We direct the blowby
away from the engine by
attaching 18 inches of
3/4-in hose to the
breather with a standard
hose clamp. Position the
hose so it sends the oil
onto the hull floor. Of
course, you need to clean
the hull floor when the oil
collects there. But that's
easier than cleaning the
gunk off the engine.
PS 610
SEP 03
16
MLRS…
Prevent Fires,
Breakdowns,
Damage
•
The voltage meter measures the output of both generators, which can
sometimes lead to problems. One generator may not be doing its job, but
the voltage meter still reads in the green. Then you get to the field and
start having problems with the fire control panel because the
batteries have gotten weak.
We head off those problems by testing both generators with a multi-
meter before we go to the field. That way we catch generator problems
while they're easily fixable and don't run into surprises in the field.
To check the generators, do a voltage check at the J10 connector
behind the slave receptacle door. For the front generator, Pin N to
ground should read 28 volts and, for the rear, Pin R to ground should be
28. If you don't get 28 for both, troubleshoot the generators.
•
The locking mechanism for the doors
to the engine access panel generally
gets missed during lubing. If the mech-
anism goes unlubed long enough, it can
stick in the up position and the doors
go too far back. Then when the launch-
er comes down it catches on the
doors. This can damage the doors
and
cage and your unit's bank account.
Preventing that is as simple as spray-
ing a light oil such as WD-40 on the
locking mechanism and working the pin
up and down to spread the lube. Do
that at least monthly and you won't
have have trouble with a sticking lock.
SSG Brett Baker
SSG Scott Wozna
3/27 FA
Ft Bragg, NC
I just
don’t seem
to have any
energy…
something
must be
wrong.
but the
voltage
meter says
you’re
getting
enough
juice!
Lube locking mechanism
at least monthly
Attach hose to breather to direct
blowby away from engine
these
repairmen
have some
good ideas
for keeping
your MLRS
rocking and
rolling!
listen up,
all a’ ya!
you tell ‘em,
sergeants!
610. 16-17 (C)
7/28/03
7:54 PM
Page 1
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