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 134 of 790

TM 5--2350--378--24&P

0009 00--1

APRON WILL NOT RAISE

0009 00

INITIAL SETUP:

Tools and Special Tools

General Mechanic’s Tool Kit (WP 0071 00, item 7)

Personnel Required

Two 62B10

References

TM 5--2350--262--20--2

WP 0035 00

Equipment Conditions

Vehicle MASTER power OFF (TM 5--2350--262--10)

Vehicle on jack stands (TM 5--2350--262--20--1)

The apron cylinders receive oil flow from main control valve circuits 19 and 20. Relief valves at ports 19 and 20 of

main control valve limit pressure to apron cylinders to 3,500 psi (24,131 kPa).

WARNING

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 pressure 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.