Had an issue with my Felder D951 planer. Started getting an encoder error message, and it wouldn't move the table. Spoke with tech support, and after several phone calls, their techs said that the motor was shot and needed to be replaced. Long story short, a week later after a large rush shipping charge from Austria, the motor arrives.
Instructions sent to me from tech support were a little dissapointing. Just a blow-up diagram of all the parts. In German.
But the tech told me that there were really only two bolts to open the machine, and four screws to replace the motor. Sounded good, especially after they quoted me $3300 to send a tech to do that. Yup, not a typo.
So I removed the old motor, but it has a sprocket on it to attach to the chain which is on the old motor very tightly. Is there some trick to remove the sprocket? Here's a picture:
Felder D951 Old Motor with Sprocket for Replacement.jpg
I'm not sure what that slot on the sprocket outside the shaft is for. Perhaps that's the key. There are no little set screws holding it on.