This is a quick video to show a common fix on the Liftmaster 8500W and 8900W. I recommend you do this prior to installation. It is a very easy fix for a common problem with these operators.
This is an overall great unit from Liftmaster and very popular amongst homeowners looking to take advantage of the latest technology and keep a clean look in their garage.
It is designed for high lift and other special installations but can be used on standard garage doors with some slight adjustments or modifications to insure year's of reliable use.
![](https://s2.save4k.ru/pic/XZIGbgEmEQM/maxresdefault.jpg)