PTU抑制排故总结

tleispace

PTU相关知识拓展：
The PTU will not operate if:
· The Yellow electric pump is in operation to close the cargo doors or:
· The aircraft is on the ground, only one engine is in operation and the parking brake is ON or:
· The aircraft is on the ground, only one engine is in operation, the parking brake is OFF and the nose wheel steering is deactivated or:
· The PTU P/BSW on panel 40VU is set to OFF.

The PTU will operate if:
· The aircraft is on the ground
· Only one engine is in operation
· The NWS DISC is OFF
· The parking brake is OFF
· The PTU P/BSW on the panel 40VU is not set to OFF
. To close the energized solenoid valves a 28 VDC supply is necessary to automatically prevent operation of the PTU. If no supply is available, the isolation coupling prevents operation of the PTU during maintenance.

lee_teer

优秀 玩得佛

天使痴绝

PTU抑制：1.打开货舱门 2 PTU电门在OFF位  3 一台发动机运转时，前轮转弯失效，或者刹车在刹车位！4 PTU渗漏 5液压流量低！