Bell & Gossett Series User Manual

ADDENDUM

ADDENDUM

Revision to Impeller Assembly Process Effective August, 2006
To Be Used With Model and IOM Form Number:
Series 3530 Centrifugal Pump – P81845

DISASSEMBLY

To remove impeller, apply localized heat to the impeller hub to a temperature between 150oC - 250oC if needed. Heat Impeller hub for 1-3 minutes. This will
decrease the breakloose strength of the Loctite 243 and allow for easy removal.

ASSEMBLY

To install impeller clean shaft thoroughly with denatured alcohol let dry. Apply Loctite 7649 primer to shaft, impeller threads and allow 3-5 minutes to dry. Apply
3 drops of Loctite 243 medium strength threadlocker to shaft threads and 2 drops to the impeller threads. Tighten impeller to 144 lb-in or 12 lb-ft. No Jam nut
needed. Allow impeller to cure for 30 minutes before testing or running.

Xylem Inc.

2881 East Bayard Street Ext., Suite A, Seneca Falls, NY 13148
Phone: [phone] Fax: [phone]
www.xyleminc.com/brands/bellgossett

Bell & Gossett i s a tr ade mar k o f Xylem, Inc. or one of its s ubsidi ari es.

© 2012 Xylem Inc. ADDENDUM Rev ision C July 2012