How To Change Drive Gear On Craftsman Garage Door Opener

Step by step garage door opener gear fix.

How to change drive gear on craftsman garage door opener. With the gears back in place tighten the chain as directed in your owner s manual. Lay the chain on the garage floor while you complete the repair. Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener. Slide the new drive gear onto the drive shaft and line up the mounting hole in the drive gear with the hole in the drive shaft.

Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Insert the new roll pin through the gear and drive shaft. Pull the drive gear off the drive shaft. 2 drive out the roll pin holding the old gear in place with a pin punch and hammer.

Put a thin layer of the grease included in the kit on the gear. Pull the chain off the motor unit sprocket and out of the chain spreader. Slide the outer trolley away from the inner trolley. How to replace a gear and sprocket in a chamberlain liftmaster sears craftsman garage door opener duration.

Nick sgaragedoorservice 148 624 views 41 15. 4 replace gear mechanism lining up the screw holes on top. This was a craftsman model 139 53976srt. Replace the drive gear.