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Troubleshooting - section d – Gorman-Rupp Pumps 06D17-GAR 708768 thru 1000782 User Manual

Page 18

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Check driver output; consult vehicle
operation manual.

TROUBLE

POSSIBLE CAUSE

PROBABLE REMEDY

PUMP FAILS TO
PRIME

Strainer clogged.

Check strainer and clean if neces-
sary.

Leaking or worn seal or pump gasket.

Check pump vacuum. Replace

leaking or worn seal or gasket.

Lining of suction hose collapsed.

Replace suction hose.

Air leak in suction line.

Correct leak.

PUMP STOPS OR
FAILS TO DELIVER
RATED FLOW OR
PRESSURE

Air leak in suction line.

Correct leak.

Strainer clogged.

Check strainer and clean if necessary.

Pump speed too slow.

Suction intake not submerged at
proper level or sump too small.

Check installation and correct
submergence as needed.

Not enough liquid in casing.

Add liquid to casing. See
PRIMING.

Pump speed too slow.

Check driver output; consult vehicle
operation manual.

Lining of suction hose collapsed.

Replace suction hose.

OM−01274

0 SERIES

TROUBLESHOOTING

PAGE D − 1

TROUBLESHOOTING − SECTION D

Review all SAFETY information in Section A.

Before attempting to open or service the
pump:

1. Familiarize yourself with this manual.
2. Switch off the vehicle ignition and re-

move the key, or take other precau-
tions to ensure that the pump will re-
main inoperative.

3. Allow the pump to cool if overheated.
4. Check the temperature before open-

ing any covers, plates, or plugs.

5. Close the suction and discharge

valves.

6. Vent the pump slowly and cautiously.
7. Drain the pump.