How hard is it to set-up/adjust the actuator? My car is producing too much boost and i am putting it down to

1. Actuator been played with by previous owner
2. Actuator failed is there a way of testing?
3. Wastegate jammed is there away of removing the actuator arm to see if the wastegate can be moved freely?
4. Does it matter how long the vacuum hose is that goes to the amal valve? Mine are on the long side as they were replaced