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TROUBLESHOOTING GUIDE ( CONTINUED )
Symptom
Rapid overheating of motor
6
EN
Possible Cause(s)
1. Duty cycle too long
2. Strainer clogged
3. Suction pipe clogged
or damaged
4. Gears worn
5. Fuel level low
6. Running too long in
bypass mode
Corrective Action
1. Pump operation should
not exceed the standard
duty cycle of 30 minutes
ON, and 30 minutes
OFF. Allow the pump to
cool for 30 minutes
2. Remove strainer
coverplate. Remove
and clean strainer.
Install again
3. Remove pump from
tank. Inspect suction
pipe. Clean or replace,
as necessary
4. Remove gear coverplate
and inspect gears and
drive key. Make sure
gears turn freely with
key removed. Replace,
if necessary
5. Fill tank
6. Limit bypass operation
to 10 minutes
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