The starter control valve in the hydraulic system shown in the illustration is malfunctioning. Before removing the valve, you must first __________. MO-0049

Correct Answer: Option C — bleed off all accumulator pressure in "E"

High-pressure hydraulic accumulators store significant potential energy under nitrogen or fluid pressure. Maintenance personnel must safely bleed off all accumulator pressure before removing system valves to prevent severe personal injury from sudden fluid release.