How To Replace A Craftsman Garage Door Opener Gear

Lower the motor unit down.

How to replace a craftsman garage door opener gear.

Step by step garage door opener gear fix. Pull the chain off the motor unit sprocket and out of the chain spreader. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Clean the shaft with acetone or similar and the new one will go on pretty easy.

This was a craftsman model 139 53976srt. Remove the gear and sprocket assembly. Select the parts section of your craftsman garage door opener that you want to view. Key the model number into the search bar on the sears partsdirect webpage to view parts for your craftsman garage door opener.

Unplug the garage door opener. Now you need to install the new helical gear assembly. Put a thin layer of the grease included in the kit on the gear. Careful prying with a screwdriver will ease it off.

Use a step ladder to access the garage door opener s power cord and motor unit. Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener. Slide the outer trolley away from the inner trolley. With the gears back in place tighten the chain as directed in your owner s manual.

Make sure everything is seated back in the original positions and the interrupter wheel is fully seated. Remove the chain and cable assembly. Select the craftsman garage door opener replacement parts you need using the key number on the parts diagram as a reference.