Before you start working you need to take some safety.
Tighten up garage door chain.
This will cause premature wear on the chain rollers.
The trolley is a piece of metal that moves along the.
After close examination we found the chain was off track.
Adjust the chain on a garage door opener with help from a garage door spec.
Climb up on a stepladder and take a look at the trolley assembly.
Open the garage door and find the trolley on the opener rail.
You loosen the locking inner nut and turn the outer nut clockwise to adjust the excess slack from the chain.
Adjust it tight enough so that the center of the chain sags about 1 2 down from parallel with the track graphic below right.
Turn it counterclockwise holding the other nut in your hand to prevent it from turning.
Divide that measurement in half.
The reason the chain went off track was because the chain.
Using your wrench you can start to loosen up the adjusting nut on the side of your carriage closest to the opener head.
Watch this video and see the professional at town country door llc demonstrates the.
The chain is a very important component that makes up a garage door opener system.
Do not over tighten the chain.
Disconnect the power supply and disengage the opener.
How to troubleshoot a loose chain on your garage door step one.
Garage door didn t open in the morning.
How to make a chain tighter on a garage door 1.
Locate the adjustment bolt.