Gorman-Rupp Pumps 02D3-X2 1P 357921 and up - Manual (Page 16)

0 SERIES OM-01123
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. Disconnect the incoming power to
the motor and lock it out to ensure
that the pump will remain inopera­
tive.
3. Allow the pump to completely 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.
TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP FAILS TO
PRIME
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 PRIM­
ING.
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.