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 450 of 790
TM 5--2350--378--24&P
VEHICLE DOES NOT RESPOND TO DRIVER CONTROLS -- Continued
0019 00
MAIN RELIEF VALVE ADJUSTMENT -- CONTINUED
Loosen jam nut (Figure 13, item 1) on main relief valve 13R.
Have assistant start engine and simultaneously hold EJECTOR CONTROL lever in
BACK while holding the right--hand SUSPENSION CONTROL lever to RAISE.
Rotate adjusting screw (Figure 13, item 2) clockwise to increase pressure and
counterclockwise to decrease pressure as necessary to obtain desired pressure.
Tighten jam nut (Figure 13, item 1).
Stop engine; relieve hydraulic pressure.
Enable ejector by manually opening the ejector inhibit ball valve V23 (Figure 15, item 1)
on the DCV bank.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 14,
item 5) on the HDC control box.
Figure 13. Main Relief Valve 13R
Figure 14. HDC Control Box
Figure 15. DCV Bank
END OF WORK PACKAGE
0019 00--17/18 blank
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