TM-5-2350-378-24-P

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

0011 00--7

EJECTOR CREEPS -- Continued

0011 00

Figure 4. HDC Control Box

Figure 5. DCV Bank

EJECTOR CONTROL VALVE LEAKAGE TEST

Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 4, item 5)

on the HDC control box.

Disable ejector by manually closing the ejector inhibit ball valve V23 (Figure 5, item 1) on

the DCV bank. Using LINE UP or LINE DOWN button (Figure 4, item 3), select V1 on

the HDC display (Figure 4, item 2). Close V1 on the HDC display (Figure 4, item 2), by

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

Select V12 on the HDC display (Figure 4, item 2). Close V12 on the HDC display

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

HDC control box. Select V20 on the HDC display (Figure 4, item 2). Open V20 on the

HDC display (Figure 4, item 2), by selecting the CHANGE POSITION button (Figure 4,

item 4) on the HDC control box. Select V13 on the HDC display (Figure 4, item 2).

Close V13 on the HDC display (Figure 4, item 2) by selecting change position button

(Figure 4, item 4) on the HDC control box.

Start engine and hold EJECTOR CONTROL lever in the FORWARD or BACK position

until transducer T--2 hydraulic pressure on the HDC display (Figure 4, item 1) indicates

1,950--2,050 psi (13,445--14,135 kPa). Release EJECTOR CONTROL lever to the

NEUTRAL position, allow hydraulic pressure to stabilize for thirty seconds, then time the

pressure loss for one minute. If pressure loss is greater than 100 psi (690 kPa) per

minute, oil is leaking excessively past the ejector control valve spool.

Stop engine and relieve hydraulic pressure.

Enable ejector by manually opening the ejector inhibit ball valve V23 (Figure 5, item 1)

on the DCV bank.

Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 4, item 5)

on the HDC control box.

TM-5-2350-378-24-P - Page 178 of 790