EBARA EFQU4 User Manual
Page 18
EBARA Fluid Handling
17
Checking bearing temperatures by hand is
inaccurate. Bearing temperatures can be
measured accurately by placing a contact-type
Thermometer against the housing. Record this
temperature for future reference.
A sudden increase in bearing temperature 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
correct level (see LUBRICATION in
MAINTENANCE AND REPAIR).
Bearing 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.
Continued operation should bring the temperatures
down to normal levels.