Commissioning, Startup, Operation, and Shutdown
Model 3410 Installation, Operation, and Maintenance Manual
37
Check
Explanation/comment
Checked
Pressure
Check and record both suction and discharge pressure
gauge readings for future reference. Also record the
following:
• Voltage
• Amperage per phase
• Kilowatts (if an indicating wattmeter is available)
• Pump speed
Temperature
Check and record bearing temperatures using a
thermometer. The temperature should not exceed 180°F
(82°C).
Vibration and sound
The acceptable vibration level of a centrifugal pump
depends on the rigidity of the pump and the supporting
structure. Recommended values for vibration can vary
between 0.20–0.60 ips (inches per second) velocity
depending on the operating characteristics and the
structure. Refer to the Centrifugal Pump section of the
Hydraulic Institute Standards for a complete description
and charts on various pumps.
Field sound levels are difficult to measure because of
background noise from piping, valves, drivers, gears,
and other parts. Follow the recommendations in the
Hydraulic Institute Standards.
Check the rotation - Frame Mounted
WARNING:
• Starting the pump in reverse rotation can result in the contact of metal parts, heat
generation, and breach of containment. Ensure correct driver settings prior to starting any
pump.
• Failure to disconnect and lock out driver power may result in serious physical injury or
death. Always disconnect and lock out power to the driver before performing any
installation or maintenance tasks.
• Electrical connections must be made by certified electricians in compliance with all
international, national, state, and local rules.
• Refer to driver/coupling/gear manufacturer's installation and operation manuals (IOM)
for specific instructions and recommendations.
1. Lock out power to the driver.
2. Make sure that the coupling hubs are fastened securely to the shafts.
3. Make sure that the coupling spacer is removed.
The pump ships with the coupling spacer removed.
4. Unlock power to the driver.
5. Make sure that everyone is clear, and then jog the driver long enough to determine that the
direction of rotation corresponds to the arrow on the pump.
6. Lock out power to the driver.
