Pump control valve
A control valve in a hydraulic system that allows the pilot to manually direct the output of the hydraulic pump back to the reservoir when no unit is being actuated.
Aviation Maintenance Technician Handbook — Airframe, p. G-27
A control valve in a hydraulic system that allows the pilot to manually direct the output of the hydraulic pump back to the reservoir when no unit is being actuated.
Aviation Maintenance Technician Handbook — Airframe, p. G-27