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1. After removing the bushing from the impeller, insert the inner drive
removal tool (PT0820) into the bushing bore of the impeller. Then
while holding the tool in place, drop the tool and the impeller
assembly on to a hard surface from a height of approximately six
inches. The gap will allow the weight of the inner drive to separate
the snap fit tabs while ensuring the inner drive does not contact the
hard surface. Caution: Proper use of the tool allows convenient
and safe separation of the parts. (Do not pry parts apart. Prying
causes damage to the plastic surfaces.)
Figure 7-14: Separation of
the impeller and inner drive
2. To remove the mouth ring from the impeller eye use a screwdriver
or other flat bladed tool. Note: The silicon carbide mouth rings
should be removed only if inspection shows that replacement is
required. Removal is likely to damage the SiC mouth ring.
K+ mouth ring removal
1. Cut exposed TFE O-ring.
2. Pull out the O-ring sections with pliers.
3. Carefully use screwdriver to loosen and remove.
Figure 7-15: Remove Mouth
Ring
2. Removing the containment shell from the rear support is a simple
process. The two components easily pull apart. Occasionally the
stainless steel ring in the containment shell may stick into the rear
support. If this happens, rest the rear support bolt lugs on some
locks and gently tap on the stainless steel ring using a long arbor.
This will release the containment shell from the rear support
Note: 8” K+ models must be removed by tapping gently on the
dome with a soft hammer.
Figure 7-16: Remove
Containment Shell
Cut
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