I just got a NIB WOZ pinball machine last week and am totally new to pinball ownership. I had a few minor issues with the machine that I overacme with the help from the members over at the WOZ owners thread. I did not want to add a bunch of discussion on a single technical issue to that thread so I created a new one specific to this issue. I am having an issue where the single right castle door will not open. A ball gets stuck up behind the door and then I am unable play. I read some similar posts about this issue and thought I knew how to address it.
I have removed the castle playfield and confirmed that the post attached to the door is not secured to the motor which is preventing the door from opening. There are two small setscrews on the door post but they are not accessible when the door is in position and over the motor. As such I am unable to tighten the setscrew onto the motor shaft.
What is the fix for this issue? Do I just slightly tighten the setscrews with the door off the playfield and the try and slide/force the post over the motor drive shaft?