GORMAN-RUPP PUMPS 03H3-GL Application guide

OM-01200-02
April 9, 1981
Rev. C 11‐17‐16
GORMAN‐RUPP PUMPS
www.grpumps.com
e1981 Gorman‐Rupp Pumps Printed in U.S.A.
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
0 SERIES PUMP
MODEL
03H3-GL

Register your new
Gorman‐Rupp pump online at
www.grpumps.com
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
i
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............................................
VEHICLE REQUIREMENTS PAGE B - 2.................................................
Tank Preparation PAGE B - 2.......................................................
POSITIONING PUMP PAGE B - 2.......................................................
Lifting PAGE B - 2.................................................................
ALIGNMENT PAGE B - 3..............................................................
SUCTION AND DISCHARGE PIPING PAGE B - 4.........................................
Piping PAGE B - 5................................................................
Sealing PAGE B - 6...............................................................
Valves PAGE B - 6................................................................
Siphoning PAGE B - 7.............................................................
Eductors PAGE B - 7..............................................................
OPERATION - SECTION C PAGE C - 1......................................
PRIMING PAGE C - 1.................................................................
GROUNDING PAGE C - 1.............................................................
STARTING PAGE C - 1................................................................
Rotation PAGE C - 1..............................................................
Drive PAGE C - 2.................................................................
OPERATION PAGE C - 2..............................................................
Leakage PAGE C - 2..............................................................
Liquid Temperature And Overheating PAGE C - 2.....................................
Strainer Check PAGE C - 2.........................................................
Pump Vacuum Check PAGE C - 3..................................................
STOPPING PAGE C - 3................................................................
Cold Weather Preservation PAGE C - 3..............................................
GEARBOX TEMPERATURE CHECK PAGE C - 3..........................................
TROUBLESHOOTING - SECTION D PAGE D - 1..............................
PUMP MAINTENANCE AND REPAIR ‐ SECTION E PAGE E - 1.................
PERFORMANCE CURVE PAGE E - 1...................................................
PARTS LISTS:
Pump Model PAGE E - 3..........................................................
Gearbox Assembly PAGE E - 5.....................................................
PUMP AND SEAL DISASSEMBLY AND REASSEMBLY PAGE E - 6.........................
Removing Pump and Gearbox PAGE E - 6...........................................
Pump Casing and Wear Ring Removal PAGE E - 7....................................
Impeller Removal PAGE E - 7......................................................
Seal Removal and Disassembly PAGE E - 7..........................................

TABLE OF CONTENTS
(continued)
ii
PUMP AND SEAL REASSEMBLY PAGE E - 7............................................
Seal Reassembly and Installation PAGE E - 7........................................
Impeller Installation PAGE E - 9.....................................................
Pump Casing and Wear Ring Installation PAGE E - 9..................................
Installing Pump and Gearbox PAGE E - 10............................................
GEARBOX DISASSEMBLY PAGE E - 10..................................................
GEARBOX REASSEMBLY PAGE E - 11...................................................
LUBRICATION PAGE E - 12.............................................................
Seal Assembly PAGE E - 12.........................................................
Gearbox PAGE E - 13..............................................................

0 SERIES OM‐01200
PAGE I - 1INTRODUCTION
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 pump is an 0 Series, enclosed impeller, cen
trifugal model, with straight‐in suction and without
a suction check valve. The basic material of con
struction for wetted parts is ductile iron, with alumi
num impeller. The pump is close‐coupled to an in
tegral 1000 RPM gearbox speed increaser with a
4.09:1 ratio. Power is transmitted to the gearbox
through a customer‐installed universal shaft as
sembly.
Because pump installations are seldom identical,
this manual cannot possibly provide detailed in
structions and precautions for every aspect of
each specific application. Therefore, it is the re
sponsibility of the owner/installer of the pump to
ensure that applications not addressed in this
manual are performed only after establishing that
neither operator safety nor pump integrity are com
promised by the installation. Pumps and related
equipment must be installed and operated ac
cording to all national, local and industry stan
dards.
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
write:
The Gorman‐Rupp Company
P.O. Box 1217
Mansfield, Ohio 44901-1217
Phone: [phone]
or:
Gorman‐Rupp of Canada Limited
70 Burwell Road
St. Thomas, Ontario N5P 3R7
Phone: [phone]
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.
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.