I installed a new 3/4 horsepower Craftsman garage door opener. Went well, no problems. Close position set and open position sets well. However, when in the open position, and I push the botton to close the door, the initial motion is extremely bouncy and tourques the arm upwards before continuing on it's path to close.
The mounting is solid and the open position is proper (i.e it is open just short of level and not at a backwards slant).
Is my problem the angle of the arm from the wall to the motor unit? I have a feeling the downward slant is not enough such that the motor unit should be set lower. Or...any other ideas?
Thanks Steve-O