Dave Sr. from SWISCO responded:
August 3, 2016
I'm afraid I cannot confirm exactly what roller the Traco 8300 series door uses, but I've known them to use our 81-018 tandem roller in the past. Since you're in san Francisco, you might want to consider the stainless steel version, the 81-149, instead. The adjusting screw is on the bottom door rail facing the interior. Look for a plastic plug covering the screw head. At the end of the day, though, the only way to be sure of what roller you need is to take yours out of the door and refer to our pictures and information. I know that's a project, but it's just how these doors were designed, I'm afraid.
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Dave Sr. from SWISCO responded:
August 5, 2016
Yes, I believe you must remove the outside stationary door first, then the sliding door. They should all be removed from the outside of the building.
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