Shut down the pump, Make the final alignment of the pump and driver, Doweling the pump casing – Goulds Pumps 7200CB - IOM User Manual

Page 48: Dowel for motor installation

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Commissioning, Startup, Operation, and Shutdown

Shut down the pump

WARNING:
The pump can handle hazardous and toxic fluids. Identify the contents of the pump and observe proper
decontamination procedures in order to eliminate the possible exposure to any hazardous or toxic fluids.
Wear the proper personal protective equipment. Potential hazards include, but are not limited to, high
temperature, flammable, acidic, caustic, explosive, and other risks. You must handle and dispose of
pumped fluid in compliance with the applicable environmental regulations.

1. Slowly close the discharge valve.
2. Shut down and lock the driver to prevent accidental rotation.

Make the final alignment of the pump and driver

WARNING:

• 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.

• Follow shaft alignment procedures in order to prevent catastrophic failure of drive components or

unintended contact of rotating parts. Follow the coupling installation and operation procedures from
the coupling manufacturer.

You must check the final alignment after the pump and driver are at operating temperature. For
initial alignment instructions, see the Installation chapter.
1. Run the unit under actual operating conditions for enough time to bring the pump, driver,

and associated system to operating temperature.

2. Shut down the pump and the driver.
3. Remove the coupling guard.
4. Check the alignment while the unit is still hot.

See Pump-to-driver alignment in the Installation chapter.

5. Reinstall the coupling guard.
6. Restart the pump and driver.

Doweling the pump casing

You must dowel the pump casing to the baseplate pedestals in order to maintain the proper
pump position. There are two methods for doweling the pump casing, depending on whether
the pump is used in a cold application or a hot application. Hot doweling is required above
250°F (121°C). All pumps are equipped for hot doweling.
When the driver is mounted at the factory, the pump is doweled for both cold and hot
applications; the driver is not doweled in order to allow for final field alignment. When the driver
is mounted in the field, the pump is not doweled. Therefore, these doweling procedures,
typically done at the factory, must be done in the field.

NOTICE:
You should dowel only after completing the final alignment.

Dowel for motor installation

1. Center the pump on its pedestal so that the hold-down bolts are centered in the tapped

holes of the pump pedestal.

2. Place the motor on the baseplate with the proper shaft separation (DBSE = distance

between shaft ends).

3. Tighten the pump hold-down bolts.

46

Model 7200CB, API Type BB5 Barrel Multistage / ISO 13709 2nd Edition / API 610 11th Edition Installation, Operation, and

Maintenance Manual

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