Owner's manual

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY

PUMP FAILS TO

PRIME

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE

D SERIES OM−01477

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.