How To Replace Garage Door Opener Gear And Sprocket Assembly

Check the manual or replacement parts diagram for specific part information before.

How to replace garage door opener gear and sprocket assembly. Compatible with chamberlain models pd752 pd758s pd752d pd758d all models may not be listed. Replacement gear and sprocket assembly compatible with chamberlain estate series chain drive garage door openers. Replacement gears and sprockets for genie model garage door openers. Simply remove those for replacement.

Replace a broken gear and sprocket assembly with the manufacturer approved replacement part. If it is just a gear you are replacing you should remove it after you have unbolted assembly and replace it with a new one by going in reverse order. See more product details. Remove the two screws closest to the back of the opener securing the gear and sprocket assembly with a 5 16 hex nut driver.

Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears. See full descriptions for garage door opener compatibility by model numbers. High quality rigorously tested and durable only liftmaster parts are recommended for repairing your garage door opener.

Remove the third screw securing the gear and sprocket assembly with a 5 16 open end wrench or a 1 4 socket wrench with a 5 16 socket. From logic boards to chain kits to safety reversing sensors find the right liftmaster replacement part to help you with any garage door opener repair project. This gear and sprocket assembly is compatible with various chain drive garage door openers. This was a craftsman model 139 53976srt.

If the gear and sprocket assembly breaks the motor runs but the door won t move. This is a video on how to change the gear sprockets in a craftsman garage door opener. There should be three nuts holding the sprocket assembly. If it is the entire assembly you need just replace the assembly with your new one.