Pump Operation Precautions - Goulds Pumps 3700 Installation, Operation And Maintenance Manual

NOTICE:
Risk of equipment damage on pure or purge-oil mist-lubricated units. Remove the viewing port
plugs to verify that oil mist is flowing properly. Reinstall the plugs after confirming.
Before you start the pump, you must perform these tasks:
• Open the suction valve.
• Open any recirculation or cooling lines.
1. Fully close or partially open the discharge valve, depending on system conditions.
2. Start the driver.
3. Slowly open the discharge valve until the pump reaches the desired flow.
4. Immediately check the pressure gauge to ensure that the pump quickly reaches the correct
discharge pressure.
5. If the pump fails to reach the correct pressure, perform these steps:
a) Stop the driver.
b) Prime the pump again.
c) Restart the driver.
6. Monitor the pump while it is operating:
a) Check the pump for bearing temperature, excessive vibration, and noise.
b) If the pump exceeds normal levels, then shut down the pump immediately and correct
7. Repeat steps 5 and 6 until the pump runs properly.

Pump operation precautions

General considerations
NOTICE:
On ring oil-lubricated pumps, remove oil ring viewing port plugs to verify the following:
• The oil rings are properly positioned in the grooves on the shaft.
• The oil rings are turning.
• The oil rings are throwing oil.
Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance
Manual
the problem.
A pump can exceed normal levels for several reasons. See Troubleshooting for
information about possible solutions to this problem.
Commissioning, Startup, Operation, and Shutdown
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