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 216 of 790

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

0012 00--29

EJECTOR DOES NOT EXTEND OR RETRACT -- Continued

0012 00

Figure 20. HDC Control Box

Figure 21. DCV Bank

EJECTOR CIRCUIT PRESSURE CHECK -- CONTINUED

Disable ejector by manually closing the ejector inhibit ball valve V23 (Figure 21, item 1)

on the DCV bank. Using LINE UP or LINE DOWN button (Figure 20, item 3), select V1

on the HDC display (Figure 20, item 2). Close V1 on the HDC display (Figure 20, item

2), by selecting the CHANGE POSITION button (Figure 20, item 4) on the HDC control

box.

Have assistant start engine and hold EJECTOR CONTROL lever in the FORWARD

position. Read transducer T--2 hydraulic pressure on the HDC display (Figure 20, item

1).

Stop engine; relieve hydraulic pressure.

Enable ejector by manually opening ejector inhibit ball valve V23 (Figure 21, item 1) on

the DCV bank. Using LINE UP or LINE DOWN button (Figure 20, item 3), select V1 on

the HDC display (Figure 20, item 2). Open V1 on the HDC display (Figure 20, item 2),

by selecting the CHANGE POSITION button (Figure 20, item 4) on the HDC control box.