Page 241 - Know and Understand Centrifugal Pumps

Know and Understand Centrifugal Pumps

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Ficlure 14-24

Install the pump back plate and seal chamber assembly. Mount the dial
indicator on the shaft and place the needle onto the outer diameter of
the lip or face of the seal chamber (Figure 14-24). An alternate method
would be to place the indicator needle inside the seal chamber bore.
Rotate the shaft. This will verify that the shaft is concentric with the seal
chamber bore. If it is not concentric, the seal may rub against the bore
when the pump is started.

With the indicator still in this same position, place the needle onto the
lip or face of the seal chamber (Figure 14-25). Rotate the shaft. This

Fiaure 14-25

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