Motors while larger doors like those for two car garages may require anywhere between 3 4 to 1 h p.
How to install a sectional garage door motor.
Average weight double doors or heavier single doors may require 1 2 h p.
These hazards can result in serious injury or death and all precautions should be taken by the installer to minimise the risk of such hazards.
Garage doors use either torsion springs or extension springs to raise and lower the door.
Once the replacement sectional garage door arrives you need to remove the old door.
Knowing garage door clearance requirements will help you avoid ordering the wrong garage door set up for your needs.
Check that the panels supplied overlap the daylight opening width by 25 35mm each.
After your new door is installed remove the old stop material on the outside of the door and replace it with the type that has a rubber weatherstrip gasket available at home centers.
Make sure you use safety goggles for this part of the operation.
This is done by inserting the inch rods through the holes in the torsion spring cone on top.
Pre installation checks a sectional overhead door is designed to be fitted behind the opening so the following dimensions need to be checked before fully unpacking the door for installation.
For doors with torsion springs located over the door spend the 50 or so to have a garage door professional release the tension.
Garage door openers will have a screw or belt driven openers or chain openers that make more noise but are easier to repair.
Next part 2 2.
First you need to release the springs.