Gorman-Rupp Pumps PA4A60C-B-E30 575/3 1482736 and up - Manual (Page 24)

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP FAILS TO
PRIME
Strainer clogged. Check strainer and clean if neces-
sary.
Suction lift or discharge head too high. Check piping installation and install
bypass line if needed. See INSTAL-
LATION.
Leaking or worn seal or pump gasket. Check pump vacuum. Replace
leaking or worn seal or gasket.
Lining of suction hose collapsed. Replace suction hose.
Air leak in suction line. Correct leak.
Discharge check valve contami-
nated, damaged, or unable to seat. Clean or replace check valve.
PUMP STOPS OR
FAILS TO DELIVER
RATED FLOW OR
PRESSURE
Air leak in suction line. Correct leak.
Lining of suction hose collapsed. Replace suction hose.
Leaking or worn seal or pump gasket. Check pump vacuum. Replace
leaking or worn seal or gasket.
Air compressor damaged/belts broken. Check and repair/replace.
Eductor clogged. Check and clean eductor.
PA SERIES OM−06440
TROUBLESHOOTING PAGE D − 1
TROUBLESHOOTING − SECTION D
Review all SAFETY information in Section A.
The following information is divided into two cate-
gories; Pump Troubleshooting and Control Box
Troubleshooting. Additionally, there is a Pump Pre-
ventive Maintenance Schedule at the end of this
section. Refer to the appropriate chart for possible
causes and remedies for your specific problem.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Turn the control box selector
switch to ‘OFF’ and lock it out to en-
sure that the pump will remain in-
operative.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau-
tiously.
7. Drain the pump.
This pump may be equipped with an op-
tional automatic starting system, and
therefore subject to automatic restart.
Keep hands and clothing away from the
unit to prevent injury during automatic
operation. Disconnect the positive bat-
tery cable before performing any main-
tenance. Failure to do so may result in
serious personal injury.
Obtain the services of a qualified elec-
trician to troubleshoot, test and/or ser-
vice the electrical components of the
control box.
Pump Troubleshooting