Replacing the Drive and Worm Gears on a Chain-Drive Garage Door Opener

[@howdypete8271]

Wonderfully helpful - thank you!

[@motocruiser5966]

Thank you for a very helpful video.

[@MrTynanDraper]

thanks for the video. . seems a #3 allen key is a bit too small to remove the fasteners from the set collar. . . have to see if the hardware store has 3.5

[@dennydeckerful]

Do you have a video on a screw driven opemer?

[@bryanska]

Has anyone done this, swapped both gears, and then had a loud rattle coming from the gears? When the door is raising, these gears rattle like crazy. I tightened all the mounting screws and confirmed everything is in the correct order.

[@dennydeckerful]

My screw driven craftsman is making that exact noise and not raising the door all the way.

[@bryanska]

@@dennydeckerful Turns out it was a worn motor. Some bushing internal to the motor casing was worn, and the armature assembly was moving fore and aft inside the motor housing. The gears became misaligned with each movement and made noise.

[@Russell_L365]

@@bryanska So you end up replacing the motor?

[@crooked-halo]

Removing the entire unit is not necessary and much more work then needed. WHY are they removing it? I did this job while it was fully connected. I suggest other videos, not this one.

[@searspartsdirect]

You’re correct that removing the entire unit isn’t necessary in every situation for this repair. Some DIY viewers may find it easier to complete the repair by pulling the motor unit down, so we show the long method in this video.

[@Marie-AnneGobeaux]

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