How To Replace Chain On Stanley Garage Door Opener

This diy repair guide explains how to replace the chain and cable assembly on a chain drive garage door opener.

How to replace chain on stanley garage door opener.

A replacement garage door opener. Chain driven garage door openers should have some slack in the chain for optimal performance. Documenting how i repaired the garage door. A new front sprocket costs about 150 200 include the labor to install it.

You can put the chain back on your automatic garage door opener using a simple adjustment mechanism. Once your old garage door starts making weird sounds or fails altogether set aside some time on the weekend to replace it. If you are not confident in your ability to diagnose the problem call a local garage door service company. The chain wraps around this sprocket as well as the gear and sprocket at the motor.

Sprocket is at the end of the opener rail closest to the garage door opening. How to replace old garage door openers. Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets. The worm gear attaches to the motor shaf.

The chain and cable assembly connects to the trolley and drives the trolley along the rail to raise and lower the door. Please subscribe to my new channel handy homeowner dedicated to how to videos like this one. If the chain and cable assembly breaks the door won t move. Some of them are fairly simple while others may be really time consuming.

I am not a professional. This video from sears partsdirect shows how to replace the drive and worm gears on a chain drive garage door opener.