How To Replace A Garage Door Opener Gear

Remove the fastener ring from the straight door arm connected to the outer trolley.

How to replace a garage door opener gear.

Shine the flashlight directly at the gear set. Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener. This was a craftsman model 139 53976srt. If you have any other broken gears or parts replace those as well.

Push the pin in with a nail set in order to remove the gear. If not your opener might simply be shot and you ll need a new one. Press this lever and you will be able to remove the belt from the gear and pulley. Slide the outer trolley away from the inner trolley.

Only replace the parts that are used on your garage door opener. I only had one stripped gear while the rest of the parts looked ok. Install the new worm gear making sure the roll pin is properly seated in the new gear. With the gears back in place tighten the chain as directed in your owner s manual.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Re install other components in reverse order. Lay the chain on the garage floor while you complete the repair. Remove retaining screws from the cover.

This is a video on how to change the gear sprockets in a craftsman garage door opener. Position a work table near the area under your motor unit to hold the garage door opener during the repair. Pull the emergency release rope to release the trolley from the garage door. Set the new gear in place and secure with the metal pin.

Step 5 replace garage door opener gear. Release the tension on the belt with the small lever near the gear. Remove the 3 nuts that hold the motor to the frame and then remove the worm gear. Use all necessary replacement parts and reassemble the garage door opener in the reverse order.

If the gears have screwed up teeth you can likely just replace them to solve the problem.