Goulds Pumps API 3171 - IOM - Manual (Page 37)

A 370C
240
134
370D
415
• A—Feeler guage
7. Evenly tighten the jam nuts (415).
8. Make sure the shaft turns freely.
9. Replace the coupling.
10. Replace the coupling guard.
Pump priming
WARNING:
These pumps are not self priming and must be fully primed at all times during operation. Loss of prime
can lead to excessive heat and severe damage to the pump and seal.
CAUTION:
Do not run the pump dry.
Never start the pump until it has been properly primed. Fully submerge the pump casing prior to starting
the pump.
For dry pit/outside tank mount units:
1. Ensure the suction supply line has adequate fluid head to prime the pump.
2. Slowly open the suction valve.
Install the coupling guard
WARNING:
• Never operate the pump without the coupling guard correctly installed.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• The coupling used in an Ex-classified environment must be properly certified and must be
constructed from a non-sparking material.
This pump is shipped without the coupling guard installed, because the motor and coupling are also not
installed.
Commissioning, Startup, Operation, and Shutdown
Model API 3171 Installation, Operation, and Maintenance Manual 35