08-01-2005, 04:59 AM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,663
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My opinion is that the screw drive sections slide together with a pin to hold them aligned so that the threaded portion is continuous with no gaps. Check n see if this is not true. Wipe off the grease and take a good look. Seems as the trolley mechanism travels over this screw, if the threads do not line up it's binding on the screw. Once this is fixed you may have to adjust the up - down limits again.
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