Goulds Pumps VIT - IOM - Manual (Page 33)

Runout of
driver shaft
Procedure
Concentricity
of the head
shaft
1. Reinstall the mechanical seal if it was removed for the flatness or concentricity
measurement.
2. Install the coupling assembly and adjust the impeller.
3. Attach the base of the dial indicator on the discharge head or driver support.
4. Place the stylus on the shaft between the top of the seal and the bottom of the
pump coupling.
5. Rotate the driver shaft slowly 360°.
6. Check that the shaft runout is within 0.004 in. (0.10 mm) TIR, or as required by
specification.
7. Drill and dowel the pin in three places to secure the driver to the motor base
after you obtain the required runouts.
Installation (Continued)
Model VIT Installation, Operation, and Maintenance 31