10. Next, remove the impeller by pulling it off the shaft. If
it is stuck, insert an existing bolt from the pump cover
into one of the threaded pulling holes located on the
impeller. Remove the impeller by pulling on the bolt.
11. It’s okay if there is some light scoring or scratches on
the face of the impeller. As long as it can be shimmed
for proper clearance, the impeller may be re-used.
However, if any fins are damaged or broken, it will
need to be replaced. The matching model number is
stamped on the back of the impeller as well.
This is an example of an impeller that has discolored as
a result of heat caused by dry-running. This is the usual
cause of seal failure and excessive impeller wear. This
impeller is not damaged. As long as it can be shimmed
for proper clearance, the impeller may be re-used.
12. Next remove the woodruff key. With a pair of diagonal
cutting pliers, grab the key firmly and slowly roll up. DO
NOT drive the key out from the top with a screwdriver. You
may bend the shaft which will cause repetitive seal failure.
13. Before you remove the seal clamp ring, prevent the
pump shaft from rotating by inserting a screwdriver
between the fan blades and through the fan guard at
the rear of the motor. Remove the sleeve screws and
clamp ring using the Phillips screwdriver. A magnetic
screwdriver can make this a bit easier.
14. Remove the screwdriver from the fan guard at the
rear of the motor. To remove the locking pin, rotate
12
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