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 146 of 790

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

0009 00--13

APRON WILL NOT RAISE -- Continued

0009 00

Figure 9. Apron Control Valve

Figure 10. HDC Control Box

Figure 11. DCV Bank

CIRCUIT 19 RELIEF VALVE ADJUSTMENT -- CONTINUED

When transducer T--1 hydraulic pressure on the HDC display (Figure 10,

item 1) indicates 3,500 psi (24,131 kPa); tighten jam nut (Figure 9, item 1).

Stop engine; relieve hydraulic pressure.

Manually open ejector inhibit ball valve V23 (Figure 11, item 1) on the DCV bank. Using

LINE UP or LINE DOWN button (Figure 10, item 3), select V1 on the HDC display

(Figure 10, item 2). Open V1 on the HDC display (Figure 10, item 2) by selecting the

CHANGE POSITION button (Figure 10, item 4) on the HDC control box. Select V17 on

the HDC display (Figure 10, item 2). Open V17 on the HDC display (Figure 10, item 2)

by selecting the CHANGE POSITION button (Figure 10, item 4) on the HDC control box.