Bracket,Ref Fan SVCE (501R, 501F, 511, 532,
          542, 550, 561, 590, 601R, 601F, 611,
          632, 642, 650, 680, 690, 601R-2, 601F-2,
          611-2, 632-2, 642-2, 650-2, 685-2)
  NOTE:   USE REGARDLESS OF SERIAL NUMBER EXCEPT
          FOR THOSE LISTED BELOW.
  561     Use Prior to Serial #1810000.
          Starting With #1810000, See 7017508.
  632     Use Prior to Serial #1810000 & Starting
          With #2064651. From Serial #1810000 to
          #2064651, See 7017508.
  642     Use Prior to Serial #1810000 & Starting
          With #2068491. From Serial #1810000 to
          #2068491, See 7017508.
  680     Use Prior to Serial #1810000 & Starting
          With #2069341. From Serial #1810000 to
          #2069341, See 7017508.
   690    Use Prior to Serial #1810000 & Starting
          With #2066436. From Serial #1810000 to
          #2066436, See 7017508.
   685-2  Use Regardless of Serial Number.