Flowserve M-series PolyChem - Manual (Page 42)

USER INSTRUCTIONS PolyChem M-SERIES ENGLISH 71569218 07-11
flowserve.com
Page 42 of 60
®
Figure 6-21
The retainer ring [2530] is
manufactured from carbon steel and may attach to
the containment shell [3500] upon removal due to the
presence of magnets in the inner magnet assembly.
b)
Remove the twelve (12) retainer
ring/containment shell cap screws [6570.7].
Remove the retainer ring [2530]. In the event the
retainer ring is lodged in place, two (2) tapped
holes have been provided on this ring to aid in its
removal. The recently removed cap screws can
be used for this purpose.
c) Remove the containment shell [3500]. See
Figure 6-22.
Figure 6-22
d)
Remove the impeller [2200].
If the impeller remains attached to the shaft
it may be necessary to utilize an arbor press to aid in
its removal as well as the removal of the inner
magnet. If an arbor press is utilized, a nonmetallic
spacer should be placed between the ram of the
press and the shaft.
e)
The assembly comprised of the impeller [2200],
shaft [2100.1], holder [3830], and inner magnet
[0220] should be placed on a nonmetallic surface
under an arbor press. See Figure 6-23.
f) Using a nonmetallic spacer, press the end of the
shaft [2100.1] until it is disengaged from the
impeller [2200].
Make sure that the shaft is free to
travel downward. Do not allow the shaft to fall as it is
being pressed free of the impeller and inner magnet.
Figure 6-23
g)
Remove the impeller [2200] and holder [3830].
h) Continue pressing the end of the shaft [2100.1]
until it disengages from the inner magnet [0220].
i) Remove the keys [6700.2] from the shaft.
j) Place the holder [3830] under the arbor press in
the same orientation as shown in Figure 6-23.
Using a nonmetallic spacer press the inboard
bushing [3300] until it becomes disengaged.
k) Remove o-ring [4610.2] from holder [3830] and
discard.
6.7.6
Disassembly of drive end
Be aware of strong magnetic forces of
the outer magnets. Keep magnetic material away
from these magnets. Observe previous warnings
concerning these magnets.
Impeller
[2200]
Holder
[3830]
Nonmetallic
Material
Inner Magnet
[0220]
Key
[6700.2]
Shaft
[2100.1]
Nonmetallic
Spacer