APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
Perform main hydraulic pump pressure test using the HDC.
· Do not operate ejector when personnel are in bowl. Do not work in bowl unless
ejector lock is engaged. Failure to comply may result in severe injury or death to
· Do not stand or work in bowl area unless ejector lock is engaged. Do not stand in
bowl to observe roller guide travels. Failure to comply may result in severe injury or
death to personnel.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 5, Item 5) on the HDC
Figure 5. Hydraulic Diagnostic Center (HDC) Control Box.
Disable ejector by manually closing the ejector inhibit ball valve V23 (Figure 6, Item 2) on the DCV bank.
Using LINE UP or LINE DOWN button (Figure 5, Item 3), select V1 on the HDC display
(Figure 5, Item 2).
Close V1 on the HDC display (Figure 5, Item 2) by selecting the CHANGE POSITION button