* repair left dust collector door. (Remove stop from top rail, roll door to left to free the center trolley, tighten nuts to relevel/plumb door so that it is plumb-relative to right door, replace end stop) | * repair left dust collector door. (Remove stop from top rail, roll door to left to free the center trolley, tighten nuts to relevel/plumb door so that it is plumb-relative to right door, replace end stop) |