PS Magazine - TB 43-PS-583
PS, The Preventative Maintenance Monthly
ISSUE 583
JUNE 2001
PS 583
JUN 01
21
M113A3 FOV . . .
C
rewmen, when it’s time to check the
engine belts on your M113A3 carrier,
don’t forget the one for the generator.
Sure, removing the bottom access panel
is a hassle. But if you don’t remove it, you
can’t get a good look at the generator belt.
A worn belt will snap during operation
and you’ll lose power as soon as the bat-
teries run down.
Take a close look at the pulleys, too.
Nicked or bent pulleys will make a good
belt go bad quickly.
PS 583
JUN 01
20
M88A1 Recovery Vehicle…
echanics, when you pull the powerpack in your M88A1 recovery vehicle for
scheduled services, pay special attention to the engine mounting bracket, NSN
The bracket is a claw-like device that holds the bottom of the powerpack and
attaches it to the hull.
Problem is, dirt and oil from the bottom of the engine compartment collects on
the mount and keeps it from opening or closing completely.
You don’t want that to happen when you try to reinstall the powerpack. The pow-
erpack won’t lock down because it’s sitting on top of a mounting bracket that’s still
partially closed, and the PTO shaft won’t line up. That means the transmission
won’t engage and you’re going nowhere fast.
And don’t even think about trying to open the mounting bracket with the power-
pack in place. That just breaks the $400 bracket. Plus, you’ll still have to pull the
powerpack again to replace the bracket.
So save yourself a lot of time, money and aggravation the next time you pull the
powerpack. Clean the engine mounting bracket thoroughly. Use a nylon brush to
clean off heavy dirt and oil. Then use the engine mount release to make sure the
bracket opens and closes completely before reinstalling the powerpack.
Check for Worn Belt
Clean mounting bracket
before reinstalling powerpack
Use engine mount release to open
and close bracket after cleaning
We wouldn’t
be
in this
fix if you’d
checked my
generator
belt
before
it snapped!
I don’t get
it! Why won’t
your PTO shaft
line up?
Maybe it’s because
you put my
powerpack
on
top
of my engine
mounting bracket!
Damaged generator belt
will snap if not checked
583. 20-21 (I!2)
4/28/01
6:43 PM
Page 1
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