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Troubleshooting - section d – Gorman-Rupp Pumps 3D-E1.5 1P 883504 and up User Manual

Page 15

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TROUBLE

POSSIBLE CAUSE

PROBABLE REMEDY

PUMP FAILS TO
PRIME

PUMP STOPS OR
FAILS TO DELIVER
RATED FLOW OR
PRESSURE

D SERIES

OM-03604

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 man­

ual.

2. Lock out and tag out incoming

power to ensure that the pump will
remain inoperative.

3. Allow the pump to completely cool

if overheated.

4. Drain the pump.

Air leak in suction line.

Correct leak.

Lining of suction hose collapsed.

Replace suction hose.

Integral suction or discharge check

Clean valves, check that flange nuts

valve clogged, binding, or not seating

are tight.

properly.

Cracked or broken diaphragm.

Replace diaphragm.

Diaphragm not securely in place.

Secure diaphragm.

Strainer clogged.

Check strainer and clean if necessary.

Air leak in suction line.

Correct leak.

Suction intake not properly submerged. Check installation.

Lining of suction hose collapsed.

Replace suction hose.

Cracked or broken diaphragm.

Replace diaphragm.

Diaphragm not securely in place.

Secure diaphragm.

Strainer clogged.

Check strainer and clean if necessary.

Integral suction or discharge check

Clean valves, check that flange nuts

valve clogged, binding, or not seating

are tight.

properly.

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