Goulds Pumps 3620 - IOM - Manual (Page 64)

Maintenance
Disassemble the rotating assembly
1. Loosen and remove the head to case nuts (425).
2. Use the jackscrews provided with the pump in order to loosen the head (184) from the
casing (100).
WARNING:
Never use heat to disassemble the pump due to the risk of an explosion from trapped liquid.
3. Push the shaft assembly towards the radial end until it stops. Maintain this position until the
next step is completed.
4. Insert eyebolts (not supplied) in the pre-drilled threaded holes in the top outside perimeter
of the head.
WARNING:
Use the eyebolts to lift only the head. They will not support the weight of the entire pump.
5. Slide the head out of the pump without the rotor.
6. Remove the head (184) from the casing (100) to the work area.
7. Use a sling in order to pull the shaft out of the pump only as far as the radial end is still
supported by the radial end throat bushing (125).
CAUTION:
Support the thrust end of the shaft before you position the slings to remove the rotor.
62 Model 3620, API Type BB2 Single Stage / ISO 13709 1st/2nd Ed. / API 610 8th-11th Ed. Installation, Operation, and
Maintenance Manual