Gorman-Rupp Pumps 16C2-4045T 1514991 and up - Manual (Page 18)

10 SERIES OM-06541
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. Switch off the engine ignition and dis­
connect the positive battery cable to
ensure that the pump will remain in­
operative.
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
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.
Suction check valve or foot valve
clogged or binding. Clean valve
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.