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6.1.5.1 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.
319H
319Y
Figure 50: Grease-lubricated bearings
1.
Wipe dirt from the grease fittings(319H).
2.
Fill both of the grease cavities through the fittings with a recommended grease until the fresh
grease comes out of the relief fittings (319Y).
3.
Make sure that the grease retention rings (253) are seated in the bearing housing.
If they are not, press them in place with the drains located at the bottom.
4.
Wipe off any excess grease.
5.
Recheck the alignment.
The bearing temperature usually rises after you regrease due to an excess supply of grease. Tempera-
tures return to normal in about two to four operating hours as the pump runs and purges the excess
grease from the bearings.
6.1.5.2 Lubricate the bearings after a shutdown period
1.
Flush out the bearings and bearing frame with a light oil to remove contaminants.
During flushing, make sure to rotate the shaft slowly by hand.
2.
Flush the bearing housing with the proper lubricating oil to ensure oil quality after cleaning.
3.
Refer to
Reassembly
section for proper bearing greasing procedure.
6.1.6 Shaft-seal maintenance
6.1.6.1 Mechanical-seal maintenance
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified.
WARNING:
The mechanical seal used in an ATEX classified environment must be properly certified.
6.1 Maintenance schedule
XHD Installation, Operation, and Maintenance Manual
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