TM 5-2350-378-23&P
0007
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
STEP
1.
Perform main relief valve pressure test using the HDC.
WARNING
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.
a.
Move ejector forward, stop engine, and relieve hydraulic pressure.
b.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 1, Item 5) on the HDC
control box.
1
2
3
4
5
T00505HDC
Figure 1. Hydraulic Diagnostic Center (HDC) Control Box.