How To Replace A Craftsman Garage Door Opener Gear

Pull the chain off the motor unit sprocket and out of the chain spreader.

How to replace a craftsman garage door opener gear.

With the gears back in place tighten the chain as directed in your owner s manual. This is a video on how to change the gear sprockets in a craftsman garage door opener. Slide the outer trolley away from the inner trolley. Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener.

Remove the chain and cable assembly. Key the model number into the search bar on the sears partsdirect webpage to view parts for your craftsman garage door opener. Use a step ladder to access the garage door opener s power cord and motor unit. Remove the gear and sprocket assembly.

Put a thin layer of the grease included in the kit on the gear. Lower the motor unit down. Step by step garage door opener gear fix. This was a craftsman model 139 53976srt.

Select the craftsman garage door opener replacement parts you need using the key number on the parts diagram as a reference. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Now you need to install the new helical gear assembly. Unplug the garage door opener.

Clean the shaft with acetone or similar and the new one will go on pretty easy. Lay the chain out on the garage floor while you complete the repair. Careful prying with a screwdriver will ease it off.