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Gorman-Rupp Pumps 4D-B 461594 and up User Manual

Page 14

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TROUBLE

POSSIBLE CAUSE

PROBABLE REMEDY

PUMP REQUIRES

TOO MUCH

POWER

PUMP

CLOGS FRE-

QUENTLY

EXCESSIVE NOISE

BEARINGS

RUN TOO HOT

OM--01505

D SERIES

TROUBLESHOOTING

PAGE D -- 2

Liquid solution too thick.

Dilute if possible.

Integral discharge check valve clogged Clean valve.
or binding.

Bearings in motor or gearbox

Check bearings.

worn or binding.

Integral suction or discharge check

Clean valves, check that flange nuts

valve clogged, binding, or not seating

are tight.

properly.

Liquid solution too thick.

Dilute if possible.

Pump, gearbox, or motor not

Check and tighten mounting bolts.

securely mounted.

Gearbox or motor not properly

See

LUBRICATION in MAINTE-

lubricated.

NANCE AND REPAIR.

Bearing temperature is high, but within Check bearing temperature regularly
limits.

to monitor any increase.

Low or incorrect lubricant.

Check for proper type and level of
lubricant.

Drive misaligned.

Align drive properly.