SnockZilla said:PSB, really appreciate the help. Instructions for the motor say to be careful removing the arm because the "slider" could drop into the motor. I would like to work on it off the motor though.
Actually the manual meant not to loosen the slider limit screws too far, it doesn't have anything to do with the arm(mounting tube).
That part of the manual only has to do with setting the EAST & WEST limit sliders. (So you don't whack into solid object nearby). I didn't bother messing with mine. On top of the roof, you shouldn't need to bother yours either.
You can take the arm off without fear of losing anything. (see attachment pic)