Troubleshooting - section d – Gorman-Rupp Pumps 2D-E.50 1P 1485341 and up User Manual
Page 15
TROUBLE
POSSIBLE CAUSE
PROBABLE REMEDY
PUMP FAILS TO
PRIME
PUMP STOPS OR
FAILS TO DELIVER
RATED FLOW OR
PRESSURE
D SERIES
OM−01476
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.