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 130 of 790

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

0008 00--9

APRON, BILGE PUMP, AND LEFT--HAND WHEEL CONTROL INOPERATIVE -- Continued

0008 00

Figure 6. DCV Bank

Figure 7. HDC Control Box

13R MAIN RELIEF VALVE ADJUSTMENT

Loosen jam nut (Figure 6, item 2) on main relief valve 13R.

Have assistant simultaneously hold EJECTOR CONTROL lever in BACK while holding

the right--hand SUSPENSION CONTROL lever in RAISE.

Read transducer T--3 hydraulic pressure on the HDC display (Figure 7, item 1).

While reading transducer T3 hydraulic pressure on the HDC display (Figure 7, item 1),

rotate adjusting screw (Figure 6, item 1) clockwise to increase pressure; counterclock-

wise to decrease pressure, until correct pressure is indicated. Tighten jam nut (Figure 6,

item 2).

Stop engine; relieve hydraulic pressure.

Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 7,

item 2) on the HDC control box.