Category: Windows / Others

License: Freeware

Limitations :

OS: Windows All

Size: 1.03 MB (1,075,990 bytes)

Introduction: Basically, there are three basic types of garage door openers - chain, screw and belt drive. Screw drive systems require no chains or belts, and never require adjustment. This how-to focuses on a screw drive system, although the most basic elements of installation are similar for the different systems. The motor sizes are either 1/3 or 1/2 horsepower. All new models include federally mandated safety features that reverse the door if it hits an object. Better models also include an infrared beam system that reverses the door if anything crosses the beam while the door is in operation. For additional security, features such as "rolling code" systems which reset a new code each time the opener is used are also available.