Hello Craftsmen Door Guy Experts (Pretty soon I will be able to join your ranks I think).

One of you advised me about 2-3 years ago (Doorman06?) when I replaced the drive gear on my Craftsman 1/2 HP Unit. Today I needed to replace the drive gear AND sprocket. (Replacement Part 41C4220A) It seems some type of bearing had worn out, the sprocket had all types of play, and the chain would not stay put. Anyway, after two or three hours spent replacing the drive gear and sprocket, I believe I may have upset something inside the unit and the motor runs continually even after the limit terminals make contact.

What did I do wrong? Better yet, what do I do now?

Thanx

Nick