Paul from SWISCO responded:
November 12, 2015
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Paul from SWISCO responded:
November 17, 2015
Yes, it can be used for both the top and bottom.
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Dave Sr. from SWISCO responded:
November 18, 2015
Check to see if the adjustment screw is getting hung up in the door rail. That could be what is preventing the spring action. Also, see if the cut out opening were the wheel is inserted is bent and holding up the wheel.
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