Vans Drawing C4 and Spinner documentation Positioned the S-602B rear doubler ring on the S-602-1 by aligning the four mounting holes. Inserted spacers into the 4 mounting holes to keep the plates aligned and match drilled the pattern of holes for the AN470 rivets shown in DWG C4 Detail ‘B’, Marked the position of the inner edge of S-602B on S-602-1. Removed S-602B. Removed the inner portion of S-602-1. Deburred all the holes and edges of both plates. Primed and rivet the S-602B and S-601-1 together.
