Gorman-Rupp Pumps PAH3B60-4045H 1493144 and up User Manual
Page 22
TROUBLE
POSSIBLE CAUSE
PROBABLE REMEDY
BEARINGS RUN
TOO HOT
Bearing temperature is high, but
within limits.
Align drive properly.
Drive misaligned.
Check piping installation for proper
support.
Suction and discharge lines not prop
erly supported.
Check for proper type and level of
lubricant.
Low or incorrect lubricant.
Check bearing temperature regu
larly to monitor any increase.
Check belt tension. Adjust as
required.
Excessive tension on drive belt.
PAH SERIES
OM-06474
TROUBLESHOOTING
PAGE D - 3
PREVENTIVE MAINTENANCE
Since pump applications are seldom identical, and
pump wear is directly affected by such things as
the abrasive qualities, pressure and temperature
of the liquid being pumped, this section is intended
only to provide general recommendations and
practices for preventive maintenance. Regardless
of the application however, following a routine pre
ventive maintenance schedule will help assure
trouble‐free performance and long life from your
Gorman‐Rupp pump. For specific questions con
cerning your application, contact your Gorman‐
Rupp distributor or the Gorman‐Rupp Company.
Record keeping is an essential component of a
good preventive maintenance program. Changes
in suction and discharge gauge readings (if so
equipped) between regularly scheduled inspec
tions can indicate problems that can be corrected
before system damage or catastrophic failure oc
curs. The appearance of wearing parts should also
be documented at each inspection for comparison
as well. Also, if records indicate that a certain part
(such as the seal) fails at approximately the same
duty cycle, the part can be checked and replaced
before failure occurs, reducing unscheduled down
time.
For new applications, a first inspection of wearing
parts at 250 hours will give insight into the wear rate
for your particular application. Subsequent inspec
tions should be performed at the intervals shown
on the chart below. Critical applications should be
inspected more frequently.