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Gorman-Rupp Pumps 83A52-B 1332148 and up User Manual

Page 18

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OM−00881

80 SERIES

OPERATION

PAGE C − 4

curately by placing a contact-type thermometer
against the housing. Record this temperature for
future reference.

A sudden increase in bearing temperatures is a
warning that the bearings are at the point of failing
to operate properly. Make certain that the bearing
lubricant is of the proper viscosity and at the cor-

rect level (see LUBRICATION in Section E). Bear-
ing overheating can also be caused by shaft
misalignment and/or excessive vibration.

When pumps are first started, the bearings may
seem to run at temperatures above normal. Con-
tinued operation should bring the temperatures
down to normal levels.