Turbo question

[Steve_D]

In this pic there is an actuator.
I know very little about turbos but assume this is some sort of vacuum unit.



Should it be possible to push this through its range of movement by hand?

If so then my one is FUBAR.

If it is jammed then what would the symptoms be?

Thanks
Steve

[Steve_D]

So how much pressure?
Don't want to blow it inside out by putting the workshop airline on it.

Steve

[Steve_D]

Sorry fail on my part.
Car is a 97 Peugeot 306 1.9 diesel.

Steve