How To Replace A Chain Drive Garage Door Opener

Remove the gear and sprocket assembly.

How to replace a chain drive garage door opener.

Shut the garage door if it s not already closed. An instructional video on removing or replacing the chain on a garage door opener. If the noise level bothers you or you would simply like to have a less noisy opener you could replace the old chain drive unit with a newer belt or screw drive. Pull out the idler pulley bolt and slide the idler pulley out of the rail window.

Install the new gear and sprocket. Position a work table near the area under your motor unit to hold the garage door opener during the repair. Unplug the garage door opener. Place the opener on a ladder and use scrap lumber to get it at the height you need.

Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage. Align the opener s rail with the center of the garage door. Remove the chain and cable assembly. Remove the fastener ring from the straight door arm connected to the outer trolley.

Pull the emergency release rope to release the trolley from the garage door. Remove the chain and cable assembly. If your old opener is extremely noisy it is probably an older chain drive unit. If you liked the video don t forget to leave a thumbs up.

Disconnect the trolley threaded shaft from the chain by removing the master link clip on spring master link cap and master link bar. How to put a chain back on an automatic garage door opener. Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door. Lower the motor unit down.

Press the wall control button or remote so that the opener completes its close. Use a step ladder to access the garage door opener s power cord and motor unit. Look to the end of the rail that hides the screw belt or chain to find the manual pull handle and the bracket to which it. Please subscribe to my new channel handy homeowner dedicated to how to videos like this one.