Gorman-Rupp Pumps T10A71S-B /FM - Manual (Page 19)

OM-05353 SUPER T SERIES
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 or lock out the power
source, or take other action to ensure
that the pump will remain inopera­
tive.
3. Allow the pump to completely cool if
overheated.
4. Vent the pump slowly and cautiously.
5. Close the suction and discharge
valves.
6. Check the temperature before open­
ing any covers, plates, or plugs.
7. Drain the pump.
Table 1. Trouble Shooting Chart
TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP FAILS TO PRIME Not enough liquid in casing.
Suction check valve contaminated or
damaged.
Air leak in suction line.
Lining of suction hose collapsed.
Leaking or worn seal or pump gas­
ket.
Suction lift or discharge head too
high.
Strainer clogged.
Add liquid to casing. See PRIMING.
Clean or replace check valve.
Correct leak.
Replace suction hose.
Check pump vacuum. Replace leak­
ing or worn seal or gasket.
Check piping installation and install
bypass line if needed. See INSTAL­
LATION.
Check strainer and clean if neces­
sary.
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.