APRON WILL NOT RAISE - Continued
Is the apron binding or jammed as a result of damage to apron or hull?
YES - Clear obstructions and repair mechanical damage.
NO - Go to Step (2).
Perform apron control valve pressure test, using the Hydraulic Diagnostic Center (HDC).
Before performing any hydraulic troubleshooting in the bowl, move ejector forward and
disable it by disconnecting ejector cylinder from hydraulic system. Failure to comply may
result in severe injury or death to personnel.
Move ejector forward, stop engine, and relieve hydraulic pressure.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 1, Item 5) on the HDC
Using LINE UP or LINE DOWN button (Figure 1, Item 3), select V17 on the HDC display
(Figure 1, Item 2).
Close V17 on the HDC display (Figure 1, Item 2) by selecting the CHANGE POSITION button
(Figure 1, Item 4) on the HDC control box.
Have assistant start engine and hold APRON CONTROL lever in UP position (RAISE).
Read transducer T-1 hydraulic pressure on the HDC display (Figure 1, Item 1).