Manage My Life

How do I put the chain back on the sprocket on my garage door opener?

by Manage My Life Last activity date:
September 5th, 2007

The chain came off the sprocket of my garage door opener. How do I fix this?

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Manage My Life
To reinstall the chain on the sprocket, first with the door closed pull the rope hanging down from the trolley on the t-bar. This will release the door from the garage door opener. The chain is attached to a threaded rod that is attached to the trolley. Loosen the inside nut and back it off 6-8 turns, back the outside nut off 5-6 turns, this will give you some slack in the chain. Make sure the cable is inside the cable pulley and run the chain around the sprocket. Hold the chain to keep it from twisting and tighten the outside nut until the chain is 1/2 inch above the t-bar. Tighten the inside nut to lock it down and reattach the door to the trolley.

When the door is attached to the trolley and is open, it is normal for the chain to sag slightly.
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by Manage My Life
September 5th, 2007
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