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 288 of 790

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

FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE --

Continued

0014 00

Figure 9. HDC Control Box

FORWARD MANIFOLD PRESSURE TEST

Stop engine; relieve hydraulic pressure.

Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 9,

item 5) on the HDC control box.

For front left (left forward manifold): Using LINE UP or LINE DOWN button (Figure 9,

item 3), select V9 on the HDC display (Figure 9, item 2). Close V9 on the HDC display

(Figure 9, item 2), by selecting the CHANGE POSITION button (Figure 9, item 4) on the

HDC control box.

Have assistant start engine and move the SPRUNG/UNSPRUNG control valve lever to

SPRUNG mode. Read transducer T--7 hydraulic pressure on the HDC display

(Figure 9, item 1).

Continued on page 0014 00--19.

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