If the door is closing and the beam between the eyes is interrupted the door will automatically reverse.
How to install a single garage door opener.
Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door.
If the eyes aren t connected the door won t operate.
Then install the motor brackets.
Attach the straps to the power unit with the hardware provided.
Securely mounted hardware and rails.
Align the opener s rail with the center of the garage door.
For instructions on how to install a new garage door opener see how to install a garage door opener.
My 1st attempt at installing an electric garage door opener.
Bolt the angle irons to a rafter or rafters with lag screws.
Begin by putting together the main assembly.
Place the opener on a ladder and use scrap lumber to get it at the height you need.
Fix the door bracket in place.
Attach them together as.
First put the rail together.
Attach the rail.
This should come in several pieces that fit easily together.
This was installed on a door that was always a manual door.
After that attach the motor to the brackets and verify the rail is perfectly horizontal with a bubble level.
Most units hang from angle irons and metal straps that have holes drilled in them at regular intervals.
After that start installing the sensors.
With a safety ring and a steel pin join the free end of the rail with the header bracket.
This is the piece of the opener that.