Most long arms and mid arms have a pretension. This one is no exception. Right now this machine has the thread stand on top rather than on the side as most other machines do. This has caused issues with how the thread feeds off the top of the cone. The first thing I did was remove the mounted cone stand. It is cheaply made with no locking mechanism to hold the cone steady. This allows the cone to wobble and not feed properly into the pretension. I have a new thread holder ordered but in the interim I put a heavy stand to the back of the machine.
Additionally, the eyes of the pretension were at an odd angle. That didn’t allow the thread from the top of the machine to feed evenly. I loosened the hex screw so I could reposition the eyes on the pretension. A problem this machine had was throwing thread into the flywheel space. It’s easy to see how this fix moved the thread further from the space.
Don’t go away, there is more coming in the next few days.