Gorman-Rupp Pumps 02C3-X.75 User Manual
BC
OM-01094-04
May 11, 1981
Rev. B 05‐31‐2013
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
0 SERIES PUMP
MODEL
02C3-X.75 3P
THE GORMAN‐RUPP COMPANY MANSFIELD, OHIO
www.grpumps.com
GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A.
1981 The Gorman‐Rupp Company
Register your new
Gorman‐Rupp pump online at
www.grpumps.com/register.
Valid serial number and e‐mail address required.
RECORD YOUR PUMP MODEL AND SERIAL NUMBER
Please record your pump model and serial number in the
spaces provided below. Your Gorman‐Rupp distributor
needs this information when you require parts or service.
Pump Model:
Serial Number:
TABLE OF CONTENTS
INTRODUCTION PAGE I - 1.................................................
SAFETY - SECTION A PAGE A - 1...........................................
INSTALLATION - SECTION B PAGE B - 1....................................
Pump Dimensions PAGE B - 1.....................................................
PREINSTALLATION INSPECTION PAGE B - 2............................................
POSITIONING PUMP PAGE B - 2.......................................................
Lifting PAGE B - 2.................................................................
Mounting PAGE B - 2.............................................................
SUCTION AND DISCHARGE PIPING PAGE B - 2.........................................
Materials PAGE B - 3..............................................................
Line Configuration PAGE B - 3......................................................
Connections to Pump PAGE B - 3..................................................
Gauges PAGE B - 3...............................................................
SUCTION LINES PAGE B - 3...........................................................
Fittings PAGE B - 3...............................................................
Strainers PAGE B - 3..............................................................
Sealing PAGE B - 3...............................................................
Suction Lines In Sumps PAGE B - 3.................................................
Suction Line Positioning PAGE B - 4................................................
DISCHARGE LINES PAGE B - 4........................................................
Siphoning PAGE B - 4.............................................................
Valves PAGE B - 4................................................................
Bypass Lines PAGE B - 5..........................................................
ELECTRICAL CONNECTIONS PAGE B - 5...............................................
OPERATION - SECTION C PAGE C - 1......................................
PRIMING PAGE C - 1.................................................................
STARTING PAGE C - 1................................................................
OPERATION PAGE C - 1..............................................................
Lines With a Bypass PAGE C - 1....................................................
Lines Without a Bypass PAGE C - 2.................................................
Leakage PAGE C - 2..............................................................
Liquid Temperature And Overheating PAGE C - 2.....................................
Strainer Check PAGE C - 2.........................................................
Pump Vacuum Check PAGE C - 2..................................................
STOPPING PAGE C - 3................................................................
Cold Weather Preservation PAGE C - 3..............................................
TROUBLESHOOTING - SECTION D PAGE D - 1..............................
PREVENTIVE MAINTENANCE PAGE D - 3...........................................
PUMP MAINTENANCE AND REPAIR - SECTION E PAGE E - 1................
PERFORMANCE CURVE PAGE E - 1...................................................
PARTS LIST:
i
TABLE OF CONTENTS
(continued)
Pump Model PAGE E - 3..........................................................
PUMP AND SEAL DISASSEMBLY AND REASSEMBLY PAGE E - 4.........................
Pump Disassembly PAGE E - 4.....................................................
Impeller Removal PAGE E - 4......................................................
Seal Removal and Disassembly PAGE E - 5..........................................
Seal Reassembly and Installation PAGE E - 5........................................
Impeller Installation PAGE E - 6.....................................................
Pump Reassembly PAGE E - 7.....................................................
Final Pump Assembly PAGE E - 7..................................................
LUBRICATION PAGE E - 7.............................................................
Seal Assembly PAGE E - 7.........................................................
ii
0 SERIES OM-01094
INTRODUCTION
Thank You for purchasing a Gorman‐Rupp pump.
Read this manual carefully to learn how to safely
install and operate your pump. Failure to do so
could result in personal injury or damage to the
pump.
This Installation, Operation, and Maintenance
manual is designed to help you achieve the best
performance and longest life from your Gorman‐
Rupp pump.
This pump is an 0 Series, enclosed impeller, self‐
priming centrifugal model with straight‐in suction,
without a suction check valve and close‐coupled to
an explosion‐proof electric motor. The pump is de
signed for handling clean liquids that do not con
tain large entrained solids. The basic material of
construction is gray iron, with bronze impeller and
stainless steel impeller shaft.
If there are any questions regarding the pump or
its application which are not covered in this man
ual or in other literature accompanying this unit,
please contact your Gorman‐Rupp distributor, or:
dures not addressed in this manual are performed
only after establishing that neither personal safety
nor pump integrity are compromised by such prac
tices.
The following are used to alert maintenance per
sonnel to procedures which require special atten
tion, to those which could damage equipment, and
to those which could be dangerous to personnel:
Immediate hazards which WILL result in
severe personal injury or death. These
instructions describe the procedure re
quired and the injury which will result
from failure to follow the procedure.
The Gorman‐Rupp Company
P.O. Box 1217
Mansfield, Ohio 44901-1217
Phone: (419) 755-1011
or:
Gorman‐Rupp of Canada Limited
70 Burwell Road
St. Thomas, Ontario N5P 3R7
Phone: (519) 631-2870
For information or technical assistance on the mo
tor, contact the motor manufacturer's local dealer
or representative.
This manual will alert personnel to known proce
dures which require special attention, to those
which could damage equipment, and to those
which could be dangerous to personnel. However,
this manual cannot possibly anticipate and provide
detailed precautions for every situation that might
occur during maintenance of the unit. Therefore, it
is the responsibility of the owner/maintenance per
sonnel to ensure that only safe, established main
tenance procedures are used, and that any proce
Hazards or unsafe practices which
COULD result in severe personal injury
or death. These instructions describe
the procedure required and the injury
which could result from failure to follow
the procedure.
Hazards or unsafe practices which COULD
result in minor personal injury or product
or property damage. These instructions
describe the requirements and the possi
ble damage which could result from failure
to follow the procedure.
NOTE
Instructions to aid in installation, operation, and
maintenance or which clarify a procedure.
PAGE I - 1INTRODUCTION
0 SERIES OM-01094
SAFETY - SECTION A
This information applies to 0 Series
electric motor driven pumps. Refer to
the manual accompanying the motor
before attempting to begin operation.
This manual will alert personnel to
known procedures which require spe
cial attention, to those which could
damage equipment, and to those which
could be dangerous to personnel. How
ever, this manual cannot possibly pro
vide detailed instructions and precau
tions for each specific application or for
every situation that might occur during
maintenance of the unit. Therefore, it is
the responsibility of the owner, installer
and/or maintenance personnel to en
sure that applications and/or mainte
nance procedures not addressed in this
manual are performed only after estab
lishing that neither personal safety nor
pump integrity are compromised by
such applications or procedures.
This pump is designed to handle petro
leum products or other industrial liq
uids that do not contain large entrained
solids. Do not attempt to pump volatile,
corrosive, or flammable materials which
may damage the pump or endanger per
sonnel as a result of pump failure.
This pump is designed to handle petro
leum products or other industrial liq
uids that do not contain large entrained
solids. All controls must meet industry
standards and codes for use in an ex
plosive atmosphere. Do not attempt to
pump liquids for which the pump and/or
controls have not been approved, or
which may damage the pump or endan
ger personnel as a result of pump fail
ure.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man
ual.
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
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.
Be certain proper safety practices are
followed before operating or servicing
the pump. Provide adequate ventilation,
prohibit smoking, wear static‐resistant
clothing and shoes. Clean up all fuel
spills immediately after occurrence.
Do not install and operate a non‐explo
sion proof motor in an explosive atmo
sphere. Install, connect, and operate
the motor in accordance with the Na
tional Electric Code and all local codes.
If there is a conflict between the instruc
tions in the manual accompanying the
unit and the National Electric Code or
PAGE A - 1SAFETY
the applicable local code, the National
or local code shall take precedence.
Because this pump is designed to han
dle volatile and/or flammable liquids,
overheating may produce dangerous
fumes. Take precautions to ensure the
area surrounding the pump is ade
quately ventilated. Allow the pump to
cool and use extreme caution when
venting the pump, or when removing
covers, plates, plugs, or fittings.
0 SERIESOM-01094
Overheated pumps can cause severe
burns and injuries. If overheating of the
pump occurs:
1. Stop the pump immediately.
2. Ventilate the area.
3. Allow the pump to completely cool.
4. Check the temperature before
opening any covers, plates,
gauges, or plugs.
5. Vent the pump slowly and cau
tiously.
6. Refer to instructions in this manual
before restarting the pump.
After the pump has been positioned,
make certain that the pump and all pip
ing connections are tight, properly sup
ported and secure before operation.
Do not remove plates, covers, gauges,
pipe plugs, or fittings from an over
heated pump. Vapor pressure within the
pump can cause parts being disen
gaged to be ejected with great force. Al
low the pump to cool before servicing.
Do not operate the pump against a
closed discharge valve for long periods
of time. If operated against a closed dis
charge valve, pump components will
deteriorate, and the liquid could come
to a boil, build pressure, and cause the
pump casing to rupture or explode.
The electrical power used to operate
this pump is high enough to cause inju
ry or death. Obtain the services of a qu
alified electrician to troubleshoot, test
and/or service the electrical compo
nents of this pump.
Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam
age to equipment. Suction and dis
charge hoses and piping must be re
moved from the pump before lifting.
Pumps and related equipment must be in
stalled and operated according to all na
tional, local and industry standards.
PAGE A - 2 SAFETY
INSTALLATION - SECTION B
OM-010940 SERIES
Review all SAFETY information in Section A.
Since pump installations are seldom identical, this
section offers only general recommendations and
practices required to inspect, position, and ar
range the pump and piping.
Most of the information pertains to a standard
static lift application where the pump is posi
tioned above the free level of liquid to be pumped.
If installed in a flooded suction application where
the liquid is supplied to the pump under pressure,
some of the information such as mounting, line
configuration, and priming must be tailored to the
OUTLINE DRAWING
specific application. Since the pressure supplied
to the pump is critical to performance and safety,
be sure to limit the incoming pressure to 50% of
the maximum permissible operating pressure as
shown on the pump performance curve.
For further assistance, contact your Gorman‐Rupp
distributor or the Gorman‐Rupp Company.
Pump Dimensions
See Figure 1 for the approximate physical dimen
sions of this pump.
Figure 1. Pump Models 02C3-E.75 3P
PAGE B - 1INSTALLATION
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