Goulds Pumps API 3171 - IOM - Manual (Page 38)

1. Wrap the expanded metal shield (501) around the motor support.
2. Install the two guard springs (501L).
Start 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.
Before you start the pump, you must perform these tasks:
• Open any recirculation or cooling lines.
• Start the external bearing flush, if specified.
• Make sure the shaft rotates freely.
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.
A pump can exceed normal levels for several reasons. See Troubleshooting for information about
possible solutions to this problem.
7. Repeat steps 5 and 6 until the pump runs properly.
Commissioning, Startup, Operation, and Shutdown
36 Model API 3171 Installation, Operation, and Maintenance Manual