TM 5-2350-378-23&P
FIELD MAINTENANCE
TROUBLESHOOTING PROCEDURES - ALL HYDRAULIC FUNCTIONS INOPERATIVE
INITIAL SETUP:
Tools and Special Tools
References (cont.)
Tool Kit, General Mechanic's: Automotive
(WP 0054, Table 1, Item 7)
Parts Kit, Hydraulic (WP 0054, Table 1, Item 3)
Equipment Condition
Vehicle MASTER power OFF (TM 5-2350-262-10)
Personnel Required
Vehicle on jack stands (TM 5-2350-262-20)
Construction Equipment Repairer 91L (Two)
References
TROUBLESHOOTING PROCEDURE
ALL HYDRAULIC FUNCTIONS INOPERATIVE
WARNING
High oil pressure is present in the M9 ACE 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 four 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.
NOTE
The hydraulic control valves on the Directional Control Valve (DCV) bank are activated
by mechanical linkages from the operator's compartment which then activate hydraulic
functions of the vehicle.
Perform this procedure only when all hydraulic functions are inoperative. Refer to
0006-1
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