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
-30°C to 90°C | -22°F to 194°F when measured at the surface of the bearing frame.
•
Make sure that bearing temperatures, measured at the bearing frame, are no more than 50°C |
122°F above the ambient temperature and never exceed 90°C | 194°F when checked weekly.
6.4.4 Regrease the grease-lubricated bearings
NOTICE:
Risk of equipment damage. Ensure that the grease container, the greasing device, and the fit-
tings are clean. Failure to do so can result in impurities entering the bearing housing while re-
greasing 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 5°C to 10°C | 9°F to 18°F 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.
6.5 Shaft seal maintenance
6.5.1 Mechanical-seal maintenance
WARNING:
The mechanical seal must have an appropriate seal flush system. Failure to do so will result
in excess heat generation and seal failure.
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified.
CAUTION:
Running a mechanical seal dry, even for a few seconds, can cause seal failure and physical
injury. Never operate the pump without liquid supplied to the mechanical seal.
Cartridge-type mechanical seals
Cartridge-type mechanical seals are commonly used. Cartridge seals are preset by the seal manufactur-
er and require no field settings. Cartridge seals installed by the user require disengagement of the hold-
ing clips prior to operation, allowing the seal to slide into place. If the seal has been installed in the pump
by ITT, these clips have already been disengaged.
6.5 Shaft seal maintenance
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Model ICO i-FRAME, ICOH i-FRAME Installation, Operation, and Maintenance Manual
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