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Alan J B Alan J B is offline
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The unit appears to be very similar to the Chamberlain ML750-GB. I have downloaded the pdf file about fitting one of these, but I'm not sure of 2 things (1) My garage door has a long tensioning spring which runs right across the top of the door, do I have to remove this or take the tension off? (2) The instructions mention reinforcing the door frame, is this necessary? Please e-mail reply to .
Thanks
Alan J B