Window Motor will not lift ball anymore. It did, but it wont any more.

[Chris_Ely]

Originally Posted by ShaneKent253

In a no load application where we are only lifting our arm assembly without the ball the motor works fine. Only when we try to lift with the ball does the window motor not work.

Any ideas?

The window motor has an internal thermal breaker in it which opens to prevent the motor from burning out. It appears that you have the motor attached directly to the pivot of the arm. This will place a large load on the motor. When the ball is added, the motor stalls, and the internal breaker trips.
Try using a different motor, and using a gear/chain/belt reduction before the arm.