Set it securely on top of a stepladder so it s conveniently close to the ceiling.
How to install a garage door opener chain.
How to put a chain back on an automatic garage door opener step 1.
Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley.
The exact location depends on the type of door.
Fix the door bracket in place.
To install a garage door opener first assemble the rail carriage pulley and motor compartment according to the instructions.
Press the wall control button or remote so that the opener completes its close cycle and the sprocket on.
Align the opener s rail with the center of the garage door.
The garage door opener mounting bracket also called the header bracket secures the carriage tube to the wall above the door.
Lift the power unit.
Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door.
After that start installing the sensors.
Attach brackets to the ceiling and door and position the end of the rail above the closed door.
With a safety ring and a steel pin join the free end of the rail with the header bracket.
After that attach the motor to the brackets and verify the rail is perfectly horizontal with a bubble level.