How To Replace Garage Door Opener Gears

Before doing any work on the garage door opener you must unplug the opener to guard against the possibility of an accident. So if you suddenly find that the motor on your garage door opener sounds like it s running but the door is not moving checking for worn gears is the first thing you should do. Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.

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This video from sears partsdirect shows how to replace the drive and worm gears on a chain drive garage door opener.

How to replace garage door opener gears.

Step 1 unplug opener. This gear kit on amazon. If yours is a belt drive you need a kit like this https amzn to 2zqns. This is a video on how to change the gear sprockets in a craftsman garage door opener.

This was a craftsman model 139 53976srt. Shredded plastic gears are a common problem with chain driven garage door openers. The worm gear attaches to the motor shaf. If the gear and sprocket assembly breaks the motor runs but the door won t move.

Https amzn to 2uwvnkj i m working on a chain drive opener. This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener. Replacing a garage door opener gear is not a difficult project but does require some care and attention to detail this gear is situated between the belt and the motor drive. Fortunately the repair is neither difficult nor expensive and it should only take an hour of your time.

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