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 220 of 790

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

0012 00--33

EJECTOR DOES NOT EXTEND OR RETRACT -- Continued

0012 00

Figure 23. HDC Control Box

Figure 24. DCV Bank

Figure 25. Ejector Control Valve

EJECTOR CONTROL VALVE ADJUSTMENT -- CONTINUED

Disable ejector by manually closing the ejector inhibit ball valve V23 (Figure 24, item 1)

on the DCV bank. Using LINE UP or LINE DOWN button (Figure 23, item 3), select V1

on the HDC display (Figure 23, item 2). Close V1 on the HDC display (Figure 23, item 2)

by selecting the CHANGE POSITION button (Figure 23, item 4) on the HDC control box.

Start engine. With the engine at idle speed and EJECTOR CONTROL lever in

FORWARD position, loosen jam nut (Figure 25, item 1) on ejector control valve and turn

adjusting screw (Figure 25, item 2) clockwise to increase pressure; counterclockwise to

decrease pressure. Transducer T--2 hydraulic pressure on the HDC display (Figure 23,

item 1) should indicate 1,950--2,050 psi (13,445--15,135 kPa).

Stop engine; relieve hydraulic pressure

Manually open the ejector inhibit ball valve V23 (Figure 24, item 1) on the DCV bank.

Using LINE UP or LINE DOWN button (Figure 23, item 3), select V1 on the HDC display

(Figure 23, item 2). Close V1 on the HDC display (Figure 23, item 2) by selecting the

CHANGE POSITION button (Figure 23, item 4) on the HDC control box.