5 Commissioning, Startup, Operation, and
Shutdown
5.1 Preparation for startup
WARNING:
•
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 installa-
tion 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.
•
Electrical connections must be made by certified electricians in compliance with all inter-
national, national, state, and local rules.
•
Running a pump without safety devices exposes operators to risk of serious personal in-
jury or death. Never operate a unit unless appropriate safety devices (guards, etc.) are
properly installed.
CAUTION:
•
Serious damage to the pump may result if it is started dry. Make sure that the pump is
completely filled with liquid before it is started.
System flushing
Flush new and old systems in order to eliminate all foreign matter. Heavy scale, welding splatter, and
wire or other large foreign matter can clog the pump impeller. This reduces the capacity of the pump
which then causes cavitation, excessive vibration, and/or damage to close clearance parts such as wear
rings, seals, and sleeves.
Pre-operation inspections
NOTICE:
Foreign objects in the pumped liquid or piping system can block the flow and cause excess
heat generation, sparks and premature failure. Make sure that the pump and systems are free
of foreign objects before and during operation.
Perform these inspections before you start the pump:
•
Check the alignment between the pump and motor.
See Coupling alignment in the Installation chapter for alignment requirements.
•
Check all connections to the motor and starting device against the wiring diagram.
Check the voltage, phase, and frequency on the motor nameplate against the line circuit.
•
Check the suction and discharge piping and the pressure gauges for proper operation.
•
Check that you can turn the rotating element by hand in order to verify that it rotates freely.
•
Check the stuffing box adjustment, lubrication, and piping.
5 Commissioning, Startup, Operation, and Shutdown
Model 3410 Installation, Operation, and Maintenance Manual
39
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