How To Replace A Chain Drive Garage Door Opener

Press the wall control button or remote so that the opener completes its close.

How to replace a chain drive garage door opener.

Remove the fastener ring from the straight door arm connected to the outer trolley. How to put a chain back on an automatic garage door opener. Shut the garage door if it s not already closed. Pull the chain cable out of the rail window.

Use a step ladder to access the garage door opener s power cord and motor unit. Remove the chain and cable assembly. Please subscribe to my new channel handy homeowner dedicated to how to videos like this one. Place the opener on a ladder and use scrap lumber to get it at the height you need.

If you liked the video don t forget to leave a thumbs up. Position a work table near the area under your motor unit to hold the garage door opener during the repair. Install the new gear and sprocket. Pull out the idler pulley bolt and slide the idler pulley out of the rail window.

Pull the emergency release rope to release the trolley from the garage door. Disconnect the trolley threaded shaft from the chain by removing the master link clip on spring master link cap and master link bar. Align the opener s rail with the center of the garage door. Start your garage door replacement project by removing the old one.

Remove the chain and cable assembly. Lower the motor unit down. 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. Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door.

An instructional video on removing or replacing the chain on a garage door opener. Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage. Unplug the garage door opener. If your old opener is extremely noisy it is probably an older chain drive unit.