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 34 of 790
TM 5--2350--378--24&P
0004 00--9
INTRODUCTION TO TROUBLESHOOTING AND REPAIR OF THE M9 ACE HYDRAULIC
SYSTEM -- Continued
0004 00
GENERAL HYDRAULIC SYSTEM REPAIR METHODS
This section contains repair methods for the hydraulic system. If special repair methods or procedures are
required for the hydraulic system components or parts, specific repair instructions are included in the individual
maintenance tasks in TM 5--2350--262--20--1.
GENERAL HYDRAULIC SYSTEM REPAIR
WARNING
S
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 hydraulic control lever is moved several times through all positions,
and hydraulic tank dipstick is slowly loosened to relieve pressure. Failure to
comply may result in severe injury or death to personnel.
S
Main hydraulic pump weighs approximately 130 lb (59 kg). Severe injury to
personnel could result if pump is not handled with caution.
S
Before performing any hydraulic troubleshooting in the bowl, move the ejector
forward and disable it by disconnecting the ejector cylinder or by engaging the
ejector lock. Failure to comply may result in severe injury or death to personnel.
S
Spilled hydraulic oil is very slippery. Be careful when entering or working in bowl
area. Wip up any spilled oil immediately. Failure to comply may result in severe
injury to personnel.
S
Ensure personnel are clear of bilge pump area before starting engine. Failure to
comply may result in injury to personnel.
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