This was a craftsman model 139 53976srt.
Garage door repair gear replacement.
Insert the gear and sprocket assembly into the motor unit and install the mounting screws.
Apply grease to the helical gear.
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All of our garage door opener gear kits include helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the dual speed sprocket and gears.
Remove retaining screws from the cover.
Put a thin layer of the grease included in the kit on the gear.
Garage door opener gear kits.
It can be a complicated repair but not impossible to do yourself.
With the gears back in place tighten the chain as directed in your owner s manual.
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Start by unplugging the motor.
We offer a full line of services including garage door spring repair opener replacement installation maintenance.
It s one of the most common garage door opener repair problems there is.
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This is a video on how to change the gear sprockets in a craftsman garage door opener.
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Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener.
You ll need to get a replacement gear set.
Keep your garage door opener up and running using garage door opener gear kits from liftmaster.
Several components will need to be removed to get at the gear.