This gear kit on amazon.
How to replace belt on craftsman garage door opener.
If yours is a belt drive you need a kit like this https amzn to 2zqns.
This was a craftsman model 139 53976srt.
This is a video on how to change the gear sprockets in a craftsman garage door opener.
Reinstall the garage door opener.
Recently the wall switch that powers opening and closing is not lit and will not activate the opener.
315 series 139 53939d is a residential garage door opener.
Install the new belt.
I have a 1 2 hp craftsman garage door opener that is about 20 years old.
This is dangerous to anyone standing close or for vehicles driving under the door.
Unplug the garage door opener.
Take the garage door opener down.
The garage door opener uses a belt drive to move.
The garage door opener belt is an important part of the workings inside the opener when the belt is not working correctly the door will slip fail to open or come crashing down.
As soon as you understand the problem you will be able to decide whether you can make craftsman garage door repair by yourself.
Craftsman 315 series 139 53939d garage door opener troubleshooting.
I have checked that there is power to the opener and that is not the problem however if i tap the underside of the opener motor with a stick the unit lights up and the.