[HayZee518]

OK - in the front is an idler sprocket, in the back is a driven sprocket, in the middle on one side is the trolley and its connection to the chain. take the chain off and check EVERY tooth on the driven end. from side pressure and constant use, the sprocket teeth will wear down. a tooth may be missing or bent throwing the whole chain out of kilter. if you can find a piece of white coriander countertop, make a guide where the chain goes into the motor housing (both sides) to lift up the chain to a more pleasing angle of attack going into the motor drive. the chain needs to just slide on top of the guide piece.