TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP REQUIRES
TOO MUCH
POWER
BEARINGS RUN
TOO HOT
PUMP CLOGS
FREQUENTLY
EXCESSIVE
NOISE
OM−02806
0 SERIES
TROUBLESHOOTINGPAGE D − 2
Pump speed too high. Check engine output.
Discharge head too low. Adjust discharge valve.
Liquid solution too thick. Dilute if possible.
Discharge flow too slow. Open discharge valve fully to in-
crease flow rate, and run engine
at maximum governed speed.
Discharge throttling valve partially Open discharge valve fully; check pip-
closed; check valve is installed improp- ing installation.
erly.
Discharge line clogged or restricted; Check discharge lines; straighten
hose kinked. hose.
Cavitation in pump. Reduce suction lift and/or fric-
tion losses in suction line. Record
vacuum and pressure gauge read-
ings and consult local representa-
tive or factory.
Pumping entrained air. Locate and eliminate source of air
bubble.
Pump or drive not securely mounted. Secure mounting hardware.
Impeller clogged or damaged. Clean out debris; replace damaged
parts.
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.
Suction and discharge lines not Check piping installation for proper
properly supported. support.
Drive misaligned. Align drive properly.
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