Garage doors use either torsion springs or extension springs to raise and lower the door.
How to install a sectional garage door motor.
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.
First you need to release the springs.
For doors with torsion springs located over the door spend the 50 or so to have a garage door professional release the tension.
Next part 2 2.
Knowing garage door clearance requirements will help you avoid ordering the wrong garage door set up for your needs.
Make sure you use safety goggles for this part of the operation.
Motors while larger doors like those for two car garages may require anywhere between 3 4 to 1 h p.
Check that the panels supplied overlap the daylight opening width by 25 35mm each.
Sectional door installation guide 6 of 20 section 1.
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.
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.
Torsion springs mount on a bar above the door while extension springs stretch down the side of the upper tracks.
Sectional garage door indsordoorsconz installation instructions safety checklist there are many potential hazards associated with sectional garage door installation.