Maintenance
PG Pumps
wc_tx000607gb.fm
32
4.15 Troubleshooting
Problem / Symptom
Reason / Remedy
Pump does not take in water.
•
Not enough priming water in housing.
•
Engine speed too low. Adjust speed.
•
Strainer plugged. Clean strainer.
•
Suction hose damaged. Replace or repair hose.
•
Air leak at suction port. Check that fittings are tight
and sealing properly.
•
Pump too high above water.
•
Debris collecting in pump housing. Clean pump
housing.
•
Too much clearance between impeller and insert.
Pump takes in water, little or
no discharge.
•
Engine speed too low. Adjust speed.
•
Suction strainer partially plugged. Clean strainer.
•
Impeller worn. Adjust clearance by adding shims or
replace impeller.
•
Volute insert worn or damaged. Adjust clearance or
replace insert.
Suction hose leaks at inlet.
•
Clamps are not sealing properly. Tighten, replace, or
add clamp.
•
Hose diameter is too large.
•
Hose is damaged.
Discharge hose does not stay
on coupling.
•
Pressure may be too high for clamps being used.
Add another clamp.
•
Hose kinked or end blocked. Check hose.
Impeller does not turn; pump
is hard to start.
•
Impeller jammed or blocked. Open pump cover and
clean dirt and debris from inside of pump housing.
•
Impeller and insert binding. Adjust clearance by
removing shim from behind insert.
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