To hold the level in place tape it to the section.
How to put in a new garage door opener.
To hold the section in place lightly toenail a 16d nail into the frame and bend it over the section.
Attach brackets to the ceiling and door and position the end of the rail above the closed door.
After that attach the motor to the brackets and verify the rail is perfectly horizontal with a bubble level.
Place the opener on a ladder and use scrap lumber to get it at the height you need.
Roll up the door about 4 feet to check for the alignment of the tracks and make any adjustments.
Otherwise install the torque tube according to the manufacturer s directions.
Fix the door bracket in place.
After that start installing the sensors.
Then install the motor brackets.
Lift the motor compartment into place on the ceiling and attach the rail and carriage to the bracket on the door.
Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door.
Attach the new wires to the safety lenses with a screwdriver and install them on either.
With a safety ring and a steel pin join the free end of the rail with the header bracket.
To install a garage door opener first assemble the rail carriage pulley and motor compartment according to the instructions.
Add brackets and rollers before setting them in place and stack one section on top of another toenailing as you go up.