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Horizontal End Suction Pump for Chemical Process, ASME B73.1-2001
Installation, Operation, and Maintenance Manual – CPP21
8.3 REASSEMBLY
• Observe the plant's safety precautions when lifting heavy components. Request
help when moving or positioning them.
• Mounting of bearings should be carried out in a dry, dust free area away from
metal working or other machines producing shavings and dust to avoid
contamination of bearings.
• The bearings should remain in their original packaging. Once they are to be
assembled in the shaft, they must be removed from their packaging, and the
preservative in the outside diameter and the bore must be wiped out.
• Bearings should be demagnetized before mounting them, to avoid
contamination.
Reassemble as follows:
1. Place and heat the thrust bearing in an induction heater. Turn on the heater. Continuously measure the
temperature of the inner race, looking to reach 230 °F (110 °C).
• Measure the temperature continuously with an infrared thermometer, pointing
to the inner race of the bearings.
Figure 8.1 Heating the thrust bearing.
2. Position the shaft vertically (with the coupling side upward) in a press.
• Cover the jaws of the press with soft material to prevent damaging the shaft.
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