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Henderson 880 Deluxe Garage Door openener. Main travel adjust?

Discussion in 'Windows and Doors' started by carl0s, 26 Oct 2020.

  1. carl0s

    carl0s

    Joined:
    21 Jan 2007
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    Location:
    Manchester
    Country:
    United Kingdom
    Hi.
    Unsure of correct forum. Windows and Doors ?

    Just moved house. the garage door has an electric screw-type Henderson 880 Deluxe. It's an up and over door. The door didn't close all the way. This was due to a bump in some concrete that had been placed around an inspection cover outside the garage. I have ground away the concrete, but the electric opener will not close it all the way. It stops short.
    The limit switches are, as far as I can tell, not actually mechanically connected. The fully-open limit switch appears to be connected - the flap at the back, but the one that attaches to the levers on the door is just flapping about.

    I think I need to adjust the overall travel. It looks like it opens up more than it should, and doesn't close as much as it should. Something needs adjusting with the screw-drive itself, but none of my googling has brought up guidance on that. There's a flat in the end of the screw rod, and a nylon nut. If I turn the rod by hand after it's closed as much as it can, I can wind it further and the door gets to where I want it to go (now that the concrete it flat.), but then when I run the opener, it just opens and closes to the same point.

    Anybody got a manual, or some guidance on how to adjust the screw-rod drive engagement? Seems like the rod needs to be out a bit more vs the drive position or something.
     
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  3. carl0s

    carl0s

    Joined:
    21 Jan 2007
    Messages:
    155
    Thanks Received:
    1
    Location:
    Manchester
    Country:
    United Kingdom
    Ignore the above. It was simply a limit switch after all. The thing that I saw that isn't 'connected', seems to be a mechanical dis-engage for the screw-drive, to allow you to open the door by hand I think. On the other side there was a limit switch, and now my garage closes properly. Yay.
    For anyone else looking in future, the Henderson 880 Deluxe seems to be the same as the Genie Pro 88.
     
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    DIYnot Local

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