Goulds Pumps 3620 - IOM - Manual (Page 54)

Maintenance
2. Drain the liquid from the piping; flush the pump if necessary.
3. Disconnect all auxiliary piping, tubing, and equipment that will interfere with the removal of
the head and the rotor.
4. Remove the oil drain plugs (408A) from the bottom of the bearing housings (134) and drain
the oil.
Dispose of the oil in accordance with applicable regulations.
5. Remove the oiler bottle (251) and store it in a safe place.
6. Remove the coupling guard (501B).
Refer to Remove the coupling guard in the Commissioning, Startup, Operation, and
Shutdown chapter.
7. Unbolt and remove the coupling spacer (235B).
Follow the instructions provided by the coupling manufacturer for assistance.
8. Remove the coupling guard pump endplate (234A).
9. Remove the coupling nut (520) from the tapered shaft end on the pump.
10. Remove the coupling hub (233) from the pump.
• Scribe the shaft (122) for relocating the coupling hub during reassembly.
• Use a spanner type puller or puller holes provided in the hub. Refer to the instructions
provided by the coupling manufacturer for further assistance.
• At this point, you can remove the pump from the baseplate.
11. Reposition the setting tabs in order to maintain the position of the mechanical seal.
Refer to the seal installation drawing provided by the manufacturer.
Position both seals at this time.
52 Model 3620, API Type BB2 Single Stage / ISO 13709 1st/2nd Ed. / API 610 8th-11th Ed. Installation, Operation, and
Maintenance Manual