Question: how to change garage door opener sprocket?
Answer: Disconnect power. [00:31] Take the garage door opener down. [00:37] Remove the chain and cable assembly. [01:47] Remove the gear and sprocket assembly. [02:07] Install the new gear and sprocket assembly sears! [02:38] Reinstall the chain and cable assembly. [03:25] Tighten the chain and cable assembly. [03:47] Reinstall the garage door opener. [03:59]