TM-5-2350-378-24-P
HYDRAULIC DIAGNOSTIC CENTER (HDC) SUPPORTING ARMORED COMBAT EARTHMOVER (ACE), M9
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
TM-5-2350-378-24-P - Page 600 of 790
TM 5--2350--378--24&P
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REPLACE VALVE V21 (V22), RELIEF VALVE, AND BYPASS HOSE
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THIS WORK PACKAGE COVERS:
Removal, Installation
INITIAL SETUP:
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0071 00, item 7)
Materials/Parts
Dust protective caps (4) (WP 0070 00, item 3)
Dust protective plugs (WP 0070 00, item 7)
O--rings (14) (WP 0072 00, item 9)
Wiping rags (WP 0070 00, item 9)
Personnel Required
Two 62B10
Equipment Conditions
Vehicle MASTER power OFF (TM 5--2350--262--10)
Filter guard protective bracket removed
(TM 5--2350--262--20--2)
Hydraulic pressure relieved (WP 0004 00)
REMOVAL
WARNING
S
High oil pressure is present in the M9 hydraulic system. Do not disconnect any
hydraulic system component unless hydraulic system pressure has been relieved.
After hydraulic system has been relieved, wait at least 4 minutes before
disconnecting any hose or fitting. 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. Failure to comply may result in severe injury or death
to personnel.
S
Do not operate ejector when personnel are in bowl. Do not work in bowl unless
ejector lock is engaged. Failure to comply may result in severe injury or death to
personnel.
S
Do not stand or work in bowl area unless ejector lock is engaged. Do not stand in
bowl to observe roller guide travels. Failure to comply may result in severe injury
or death to personnel.
S
When folding dozer blade, work on blade latches from side of vehicle only. Do not
stand In front of dozer blade while retracting ejector. Failure to comply may result
in severe injury or death to personnel.
CAUTION
Cap or plug all oil port 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.
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