removal of the old 81-004 roller

A quick learner from Dallas, Tx says:
Think I have 81-004 but cannot decide how to remove the old one, if it is screwed in from the top (10/32) screw, is there an easy way to get the screw out? If my instincts are correct, the glass prevents access to that screw.
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Dave Sr. from SWISCO responded:
You must remove the bottom rail off the glass to get to the screw that holds the roller housing into the door. Be careful not to damage the glass (or hurt yourself). First remove the two screws that hold the bottom rail to the door. Next use a block of wood to gently tap the rail off the glass.
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