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    jumpingdoor's Avatar
    jumpingdoor Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 3, 2010, 06:58 PM
    Why does my garage door open jerky
    My door starts opening then it starts jerking and bouncing until it is almost all the way up it smooths out. Then again some times will just stop. The tension spring looks fine at least from the out side. What's going on?
    creahands's Avatar
    creahands Posts: 2,854, Reputation: 195
    Ultra Member
    		  
    #2

    Oct 3, 2010, 11:48 PM

    The door may have shifted and is hitting track. There should be at least 1/2 inch space between door side and track.

    Lubricate rollers and track with lithium grease.

    Chuck
    john_H's Avatar
    john_H Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Oct 26, 2010, 04:00 PM
    Check the rollers you may have one or more that had become bent or shifted and not parallel with the track.
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