beautypg.com

Gorman-Rupp Pumps T6A61S-B /F,/FM User Manual

Page 19

background image

SUPER T SERIES

OM-05268

OPERATION

PAGE C - 4

Temperatures up to 160

_

F (71

_

C) are considered

normal for bearings, and they can operate safely to
at least 180

_

F (82

_

C).

Checking bearing temperatures by hand is inaccu­
rate. Bearing temperatures can be measured ac­
curately 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 cor­
rect level (see LUBRICATION in MAINTENANCE
AND REPAIR
). Bearing overheating can also be
caused by shaft misalignment and/or excessive vi­
bration.

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.