TROUBLESHOOTING PROCEDURES - ALL HYDRAULIC FUNCTIONS INOPERATIVE
Tools and Special Tools
Tool Kit, General Mechanic's: Automotive
Parts Kit, Hydraulic (WP 0054, Table 1, Item 3)
Vehicle MASTER power OFF (TM 5-2350-262-10)
Vehicle on jack stands (TM 5-2350-262-20)
Construction Equipment Repairer 91L (Two)
ALL HYDRAULIC FUNCTIONS INOPERATIVE
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.
· 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