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Horizontal End Suction Pump for Chemical Process, ASME B73.1-2001
Installation, Operation, and Maintenance Manual – CPP21
Figure 8.7 Positioning the rotor assembly on the power frame (from coupling side).
9. Tighten the bearing lock nut as tight as possible by hand using a spanner wrench. Ensure at the end of
the tightening process that one of the lock washer tabs lines up with the slot in the locknut.
Figure 8.8 Tightening the locknut.
10. The tab that aligns with one of the slots is bent into the slot so it works as a lock and the locknut cannot
be loosened. Use a screwdriver and a hammer.
Figure 8.9 Bending a tab of the lock washer in the locknut.
• Wear sufficient hand protection to avoid personal injury.
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