Gorman-Rupp Pumps 16C2-F4L 913960 thru 1013565 - Manual (Page 18)

10 SERIES OM−00725−06
TROUBLESHOOTING PAGE D − 3
TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
BEARINGS
RUN TOO HOT Bearing temperature is high, but
within limits. Check bearing temperature regu-
larly to monitor any increase.
Low or incorrect lubricant. Check for proper type and level of
lubricant.
Suction and discharge lines not
properly supported. Check piping installation for
proper support.
Drive misaligned. Align drive properly.
EXCESSIVE NOISE Cavitation in pump.
Impeller clogged or damaged.
Pump or drive not securely mounted.
Pumping entrained air.
Reduce suction lift and/or friction
losses in suction line. Record vac-
uum and pressure gauge readings
and consult local representative or
factory.
Locate and eliminate source of air
bubble.
Secure mounting hardware.
Clean out debris; replace dam-
aged parts.