After that attach the motor to the brackets and verify the rail is perfectly horizontal with a bubble level.
How to install garage door opner on garage door.
Then install the motor brackets.
Set it securely on top of a stepladder so it s conveniently close to the ceiling.
Follow the included instructions to hook up the opener and fasten it to the spring system with a pulley and cable.
Garage door openers come in several varieties.
Install the garage door opener.
Connect the bracket and the end of the assembly as directed in the installation instructions.
To install the opener you ll need to hang another angle iron from the center joist on your garage s ceiling.
Lean the end of the assembly opposite the motor compartment up above the garage door.
Align the opener s rail with the center of the garage door.
Attach the bracket the opener came with to the wall above the door and then insert the end of the assembly into it.
With a safety ring and a steel pin join the free end of the rail with the header bracket.
Place the opener on a ladder and use scrap lumber to get it at the height you need.
Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door.
The garage door opener mounting bracket also called the header bracket secures the carriage tube to the wall above the door.
After that start installing the sensors.