Goulds Pumps 3355 - IOM - Manual (Page 32)

Commissioning, Startup, Operation, and Shutdown
3. Open the air vents in the seal covers.
4. Open the valve in the outside supply line until only liquid escapes from the vent valves.
5. Close the vent valves.
6. Close the outside supply line.
Other methods of priming the pump
You can also use these methods in order to prime the pump:
• Prime by ejector
• Prime by automatic priming pump
Start the pump
WARNING:Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop
the driver immediately, reprime, and attempt to restart the pump.
CAUTION:
• Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop the
driver, reprime, and attempt to restart the pump.
• Observe the pump for vibration levels, bearing temperature, and excessive noise. If normal levels
are exceeded, shut down the pump and resolve the issue.
• On pure or purge-oil mist-lubricated units, remove the viewing port plugs to verify that oil mist
flowing properly. Replace the plugs.
• On frame mounted units, ensure that the oil level is correct prior to starting pump. Close coupled
pumps do not have oil lubricated bearings.
• Ensure all flush and cooling systems are operating correctly prior to starting pump.
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
the problem.
7. Repeat steps 5 and 6 until the pump runs properly.
30 Model 3355 Installation, Operation, and Maintenance Manual