MWO-5-2350-262-35-4
ARMORED COMBAT EARTHMOVER (ACE), M9
MODIFICATION WORK ORDER
MWO-5-2350-262-35-4 - Page 31 of 207
MWO 5--2350--262--35--4
3--2
SECTION I PREPARATION FOR MODIFICATION
WARNING
High pressure is present in the M9 hydraulic system. Do not disconnect any hydraulic
system component unless hydraulic system pressure has been relieved. Ensure each of
the hydraulic control levers is moved several times through all positions, and the
hydraulic tank dipstick is slowly loosened to relieve pressure. After hydraulic pressure
has been relieved, wait at least four (4) minutes before disconnecting any hose or fitting.
Failure to comply may result in severe injury to personnel.
WARNING
Do not operate ejector when personnel are in bowl. Do not stand or work in bowl unless
ejector lock is engaged. Do not stand in bowl to observe roller guide travels. Failure to
comply may result in serious injury or death to personnel.
CAUTION
All exposed electrical contacts and connectors should be capped, protected, or sealed to
prevent damage.
CAUTION
Cap or plug all oil ports and ends of hoses and tubes when oil hoses or tubes are
disconnected or removed to prevent contamination. Failure to comply may result in
damage to equipment.
NOTE
Schematic diagrams for the M9 ACE vehicle hydraulic system for both the unmodified
vehicle and for the HDC modified vehicle are included on FO 3--1, 1 of 3 through 3 of 3
for reference.
NOTE
Use Teflon tape when connecting straight pipe fittings.
a.
Drain oil and collect into suitable containers when hoses and tubes are disconnected or removed.
b.
Raise and lock apron in full--up (full--open) position per TM 5--2350--262--10.
c.
Remove ejector from vehicle if possible, or move ejector to front of vehicle. Refer to TM
5--2350--262--20--1, Ejector Replacement, or TM 5--2350--262--10, as appropriate.
d.
Relieve hydraulic pressure in vehicle per TM 5--2350--262--10, Relieving Hydraulic Pressure.
e.
Disconnect vehicle battery power per TM 5--2350--262--20--1, Battery Cable Replacement, Negative Cables
Disconnect.
f.
As applicable throughout these procedures, remove and discard old band markers and install new band
markers as appropriate, in accordance with bowl area band marker kit, 12496929.
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