Change the oil, Lubricating-grease requirements, Regrease the grease-lubricated bearings – Goulds Pumps IC - IOM User Manual

Page 55: Shaft seal maintenance, Mechanical-seal maintenance, Change the oil lubricating-grease requirements, Egrease the grease-lubricated bearings

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Bearing frame size

Oil quantity in quarts (liters)

32

1.16 (1.1 )

42

1.48 (1.4 )

48

1.8 (1.7 )

Change the oil

1. Remove the oil drain plug (903.51).
2. Drain the oil.
3. Flush the pump with fresh oil.
4. Clean the oil drain plug.
5. Close the oil drain.
6. Fill the pump with new oil. See Lubricate the bearings with oil in the Commissioning, Startup,

Operation, and Shutdown chapter.

Dispose of used oil in accordance with local environmental regulations.

Lubricating-grease requirements

Grease quality requirements

Use a high-quality grease lubricant corresponding to NLGI Grade 2.

Grease lubrication

Consider this information when you lubricate with grease:

• Pumps are delivered from the manufacturer with lubricated bearings and are ready to be used.
• The bearings are filled with lithium-based grease, which is suitable for a temperature range from -22°F

to 194°F ( -30°C to 90°C) when measured at the surface of the bearing frame.

• Make sure that bearing temperatures, measured at the bearing frame, are no more than 122°F (50°C)

above the ambient temperature and never exceed 194°F (90°C) when checked weekly.

Regrease the grease-lubricated bearings

NOTICE:
Make sure that the grease container, the greasing device, and the fittings are clean. Failure to do this can
result in impurities entering the bearing housing when you regrease the bearings.

1. Wipe dirt from the grease fittings.
2. Fill the grease cavities through the fittings with a recommended grease.
3. Wipe off any excess grease.
4. Recheck the alignment.

The bearing temperature usually increases by 9°F to 18°F (5°C to 10°C) after you regrease due to an
excess supply of grease. Temperatures return to normal in about two to four operating hours as the pump
runs and purges the excess grease from the bearings.

Shaft seal maintenance

Mechanical-seal maintenance

WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified. Prior to startup,
make sure that all areas that could leak pumped fluid to the work environment are closed.

Maintenance

Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual

53

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