Adjusting Tension On Liftmaster Garage Door Opener

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Adjusting tension on liftmaster garage door opener.

The average life of a belt drive garage door ranges from 7 to 10 years with some which will need belt changing after only a few years while others might not for nearly two decades it depends on the quality of the product. Adjust the garage door opener mechanism. A belt drive garage door opener uses a rubber belt instead of chain links to open the garage door this makes it relatively soundless compared to its chain counterpart. The chain on my garage door opener seems to be sagging and rubbing on the track.

On the garage door motor there will be two knobs or dials to adjust the opener and the reverse sensor. There may be an adjustment linked to the chain or an adjustment to the length of the door opener track. The garage door is even with but not past the garage door opening header. The proper fully closed position is when the seal on the bottom of the garage door is resting on the floor.

Locate the manual force adjustment dials at the back of the liftmaster garage door opener. Both adjustment types should be done with the door closed and disconnected from the opener using the emergency release. 2 disconnect the power to the door opener. You might damage the motor of your garage door opener if there is a lot of resistance from the door tracks.

Double check that it s properly closed and let everyone at home know you will be working on the door so nobody attempts to open it while you are adjusting the belt. The garage door opener trolley should stop in the fully open position at minimum 1 inch from the stop bolt on the opener rail. The opener should not close to the. How do i adjust it.

The travel distance limit setting and the downward force limit setting. Adjusting these dials alters how far the garage door travels while closing and how much force in kilograms the motor uses. You should find the power outlet for the door opener mounted on the. Refer to the owner s manual to determine which is.

There are two types of adjustable down limit on liftmaster garage openers.