Xylem 8200 Series Base Mounted Centrifugal Fire Pumps AC2675 REV.C - Manual (Page 27)

12. Remove casing rings (3-003-9) from
impeller (4-002-0).
27
13. Remove set screw (3-902-9) from shaft
nuts. Remove shaft nuts (3-015-9),
O-rings (3-914-9), sleeves (3-009-9),
interstage bushing (3-231-0), and
impellers (4-002-0).
NOTE: Apply heat uniformly to the shaft
sleeve to loosen the sealant between the
shaft and sleeve.
CAUTION:
DO NOT EXCEED 275°F. Failure to follow
these instructions could result in injury or property
damage.
To further assist in removing the sleeves, hold the
shaft vertically and drop it on a block of wood. The
impeller weight should force both the impellers
and sleeves from the shaft.