Bell 206 B3 hydraulic problem

[zlydzidek]

Hi

Although PSI gauge is in green and pressure at hydraulic amplifiers is nominal there is no hydraulic power at controls
Helicopter was park without engine for few months.

P​lease advice on this issue or direct me to other maintenance forum

thank you

[Tony Mabelis]

Its 30 years since I last worked on the B206, but I have a distant memory of an Hydraulic shut off switch on the instrument panel.
Go and have a look.
Tony

[Ascend Charlie]

Umm... the B206 doesn't have a hydraulic pressure gauge.

Are you referring to the pressure from a ground test rig? If so, check the connections, check HYD switch is ON.

If the HYD circuit breaker is OUT, you will still get hyd power as it is a failsafe switch and requires electrical power to be turned OFF.

[zlydzidek]

Problem was solved - air bubble
thank you.