Test the spring by lifting the door about 3 feet.
Replace spring garage door opener with belt.
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Lubricate the spring with garage door lubricant then remove the clamp from the garage door.
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It uses a chain running assembly unit attached to tension springs that lift the garage door up and down.
Using channel lock pliers compress the spring on the spring nut and trolley shaft to create slack in the belt then hook the trolley connector to the front of the trolley.
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Located along the rail the belt connects to the trolley.
Belt drive garage openers use a rubber belt to open the garage door.
This video from sears partsdirect shows how to replace the belt on a belt drive garage door opener.
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If the belt breaks or is worn replace it with the manufacturer approved replacement part.
To test your springs disable your garage door opener if you have one then raise the door manually.
Slowly release the spring.
The rubber belt is used to slide the trolley when the door is triggered to open or close the door.
If the door remains in place the replacement was a.
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The belt connects to the trolley and drives the trolley along the rail to raise and lower the door.
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But it s good to know when it s time to find garage door spring replacements.
Explore liftmaster garage door opener belt kits.
Tighten the spring nut to tension the belt.