Gorman-rupp-pumps 03B51-B 1371962 and up Manuel d'utilisateur télécharger pdf (Page 17)

0 SERIES

OM-01239

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 or disconnect the power

source to ensure that the pump

will remain inoperative.

3. Allow the pump to completely cool

if overheated.

4. Check the temperature before

opening any covers, plates, or

plugs.

5. Close the suction and discharge

valves.

6. Vent the pump slowly and cau

tiously.

7. Drain the pump.

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY

PUMP FAILS TO

PRIME

Suction check valve contaminated or

damaged.

Clean or replace check valve.

Air leak in suction line.

Lining of suction hose collapsed.

Correct leak.

Replace suction hose.

Leaking or worn seal or pump gasket. Check pump vacuum. Replace

leaking or worn seal or gasket.

Suction lift or discharge head too high. Check piping installation and in

stall bypass line if needed. See

INSTALLATION.

Strainer clogged. Check strainer and clean if neces

sary.

Not enough liquid in casing. Add liquid to casing. See PRIMING.

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE

Air leak in suction line.

Lining of suction hose collapsed.

Correct leak.

Replace suction hose.

Leaking or worn seal or pump gasket. Check pump vacuum. Replace

leaking or worn seal or gasket.

Strainer clogged. Check strainer and clean if neces

sary.

Suction intake not submerged at

proper level or sump too small.

Check installation and correct sub

mergence as needed.

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Gorman-rupp-pumps 03B51-B 1371962 and up Manuel d'utilisateur Page 17

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