PS Magazine - TB 43-PS-742
PS, The Preventative Maintenance Monthly
ISSUE 742
SEPTEMBER 2014
18
PS 742
SEP 14
A Keen Edge
The earthmover blade’s cutting edge protects the moldboard.
If the edge wears down too far, the moldboard gets damaged
and has to be replaced or sent back to sustainment for repair.
So get down on your hands and knees, clear away the dirt
and mud, and eyeball the blade’s cutting edge. Better yet,
fold the blade—like you do for cross-country travel—to get a
closer look.
If the edge is worn to less than
3
/
4
-in, about the diameter
of a penny, report it. Your mechanic can reverse the edge or
replace it entirely if it has already been reversed.
Fold the Blade
As always, follow the word in WP 0013-10
of TM 5-2350-262-10 (Jun 12) and fold the
blade when traveling cross-country. That’s the
rule no matter what the soil conditions are,
even if it’s sand or loosely packed dirt. That
way the blade can’t dig into a ridge or other
obstruction and cause extensive damage to
the vehicle’s blade, moldboard, ejector and
hydraulic system.
It’s no secret that the ACE is temperamental when
it comes to its hydraulics, especially when you’re
digging in the hard stuff. So keep a close eye on the
hydraulic pressure gauge. It should stay between
1,500 and 2,000 psi. Lower than that and you’ve
probably got a leak somewhere. Your ACE is NMC
until it’s found and repaired.
Hydraulics Break
M9 ACE…
Operators, your
armored combat
earthmover has
a Lot
oF dirt To
Move.
Keep these PM
pointers in mind
before
you head
back for the
next load.
if you remember
to do your PM,
you’re well on
the way to a job
well done.
Hydraulic pressure gauge should be between 1,500 and 2,000 psi
I
won’t
be
moving much
dirt if
you
don’t keep up
with my PM!
This moldboard
is like a set
of dentures…
eventually it
wears out!
Fold blades…
…to inspect moldboard…
…and for cross-country travel
742 18-19.indd
1-2
7/29/14
4:38 PM
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