How To Get Chain On Gear Garage Door Opener

How to put a chain back on an automatic garage door opener.

How to get chain on gear garage door opener.

This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener. Sprocket is at the end of the opener rail closest to the garage door opening. Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage. A new front sprocket costs about 150 200 include the labor to install it.

This was a craftsman model 139 53976srt. Press the wall control button or remote so that the opener completes its close. Automatic garage doors reduce the raising and lowering of the massive doors to a click of a button to allow you quick entry and exit from the garage. Although there are more designs available chain drive and belt drive openers are the most popular models in australia.

Periodic maintenance of a liftmaster chain driven garage door opener includes lubricating the chain and greasing the chain rail. I replaced just the main gear with the sprocket and shaft assembly for 25 or so from a supplie. If yours is a belt drive you need a kit like this https amzn to 2zqns. The chain wraps around this sprocket as well as the gear and sprocket at the motor.

If you are not confident in your ability to diagnose the problem call a local garage door service company. As a homeowner knowing the correct type of lubricant for the chain. This is a video on how to change the gear sprockets in a craftsman garage door opener. If the gear and sprocket assembly breaks the motor runs but the door won t move.

This gear kit on amazon. Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.