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- Page 1 OM-01201-02 April 9, 1981 Rev. C 11‐17‐16 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 0 SERIES PUMP MODEL 03H3-GR GORMAN‐RUPP PUMPS www.grpumps.com 1981 Gorman‐Rupp Pumps Printed in U.S.A.
- Page 2 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:...
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..........PAGE I - 1 SAFETY ‐... - Page 4 TABLE OF CONTENTS (continued) PUMP AND SEAL REASSEMBLY ..........PAGE E - 7 Seal Reassembly and Installation .
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Page 5: Introduction
0 SERIES OM‐01201 INTRODUCTION Thank You for purchasing a Gorman‐Rupp pump. The following are used to alert maintenance per Read this manual carefully to learn how to safely sonnel to procedures which require special atten install and operate your pump. Failure to do so tion, to those which could damage equipment, and could result in personal injury or damage to the to those which could be dangerous to personnel:... -
Page 6: Safety - Section A
0 SERIES OM‐01201 SAFETY - SECTION A These warnings apply to 0 Series power take‐off pumps. Refer to the manual accompanying the power source before attempting to begin operation. If this pump is used with volatile and/or Because pump installations are seldom flammable liquids, be certain proper identical, this manual cannot possibly safety practices are followed before op... - Page 7 OM-01201 0 SERIES to disconnect the drive shaft or remove the pump. Be sure the pump is properly reinstalled and secure before opera tion. 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...
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Page 8: Installation - Section B
0 SERIES OM-01201 INSTALLATION - SECTION B Review all SAFETY information in Section A. coming pressure to 50% of the maximum permissi ble operating pressure as shown on the pump per Since pump installations are seldom identical, this formance curve (see Section E, Page 1). section offers only general recommendations and practices required to inspect, position, and ar... -
Page 9: Preinstallation Inspection
OM-01201 0 SERIES PREINSTALLATION INSPECTION VEHICLE REQUIREMENTS The pump assembly was inspected and tested be The following instructions apply equally to new in fore shipment from the factory. Before installation, stallations, rebuilds or retrofits. inspect the pump for damage which may have oc curred during shipment. -
Page 10: Alignment
0 SERIES OM-01201 The alignment of the pump and its power source is critical for trouble‐free mechanical operation. Be fore checking alignment, make sure that the gear box mounting bolts are tight. The pump assembly can be seriously damaged if the cables or chains used to lift When connecting the universal joint drive shaft as... -
Page 11: Suction And Discharge Piping
OM-01201 0 SERIES LUGS MUST BE IN LINE, REGARDLESS OF OPERATING ANGLE SHOWN BELOW LUG ALIGNMENT SHAFTS PARALLEL, ANGLES EQUAL SHAFTS NOT PARALLEL, ANGLES EQUAL Figure 2. Proper Installation And Alignment of Universal Assembly SUCTION AND DISCHARGE PIPING tors, related piping and safety accessories. Some of the accessories are available from Gorman‐... -
Page 12: Piping
0 SERIES OM-01201 SCHEMATIC SYSTEM USING EDUCTOR FOR DISPENSING AND FILLING Figure 3. Typical Installation Using Educator For Filling And Dispensing SCHEMATIC SYSTEM USING PUMP FOR DISPENSING AND FILLING Figure 4. Typical Installation Using Pump For Filling And Dispensing Piping A suction strainer was not furnished with this pump since it is not designed to handle liquids containing All piping material must be compatible with the liq... -
Page 13: Sealing
OM-01201 0 SERIES suction line to ensure an adequate supply of liquid Sealing to the pump. Since even a slight leak will affect priming, head, and capacity, especially when operating with a high suction lift, all connections in the suction line should be sealed with pipe dope to ensure an air... -
Page 14: Siphoning
0 SERIES OM-01201 Siphoning FDF valve to increase dispensing rates and im prove efficiency. An educator may also be used to Do not terminate the discharge line at a level lower collapse the tank service hose after the tank has than that of the liquid being pumped unless a si... -
Page 15: Operation - Section C
OM-01201 0 SERIES OPERATION - SECTION C Review all SAFETY information in Section A. Add liquid to the pump casing when: 1. The pump is being put into service for the Follow the instructions on all tags, labels and first time. decals attached to the pump. -
Page 16: Drive
OM-01201 0 SERIES be damaged and performance adversely affected Liquid Temperature And Overheating by incorrect rotation. If pump performance is not within the specified limits (see the curve on Page The maximum liquid temperature for this pump is E-1), check the direction of rotation before further 160_ F (71_C). -
Page 17: Pump Vacuum Check
OM-01201 0 SERIES Pump Vacuum Check Since this pump does not have a suction check valve, the discharge line must be fitted with a check If the application involves a high discharge valve if a pump vacuum reading is to be taken. head, gradually close the discharge throttling valve before stopping the pump. -
Page 18: Troubleshooting - Section D
0 SERIES OM-01201 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 vehicle ignition and re move the key, or take other precau tions to ensure that the pump will re... - Page 19 OM-01201 0 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Impeller or other wearing parts worn Replace worn or damaged parts. PUMP STOPS OR FAILS TO DELIVER or damaged. Check that impeller is properly cen RATED FLOW OR tered and rotates freely. PRESSURE (cont.) Suction lift or discharge head too high.
- Page 20 0 SERIES OM-01201 equipped) between regularly scheduled inspec PREVENTIVE MAINTENANCE tions can indicate problems that can be corrected Since pump applications are seldom identical, and before system damage or catastrophic failure oc pump wear is directly affected by such things as curs.
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Page 21: Pump Maintenance And Repair - Section E
PUMP MAINTENANCE AND REPAIR ‐ SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL 03H3-GR Based on 70_ F (21_ C) clear water corrected to Contact the Gorman‐Rupp Company to verify per... - Page 22 OM-01201 0 SERIES SECTION DRAWING PARTS PAGE Figure 1. Pump Model 03H3-GR PAGE E - 2 MAINTENANCE & REPAIR...
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Page 23: Parts Lists
0 SERIES OM-01201 PARTS LIST Pump Model 03H3-GR (From S/N 285579 Up) If your pump serial number is followed by an “N”, your pump is NOT a standard production model. Contact the Gorman‐Rupp Company to verify part numbers. ITEM PART... -
Page 24: Gearbox Assembly
OM-01201 0 SERIES Figure 2. 44161-016 Gearbox Assembly PAGE E - 4 MAINTENANCE & REPAIR... - Page 25 0 SERIES OM-01201 PARTS LIST 44161-016 Gearbox Assembly ITEM PART MAT'L PART NAME NUMBER CODE WEAR RING 62ZL6 14000 PINION SHAFT 8896 16020 OIL SEAL S1764 AIR VENT S1530 REDUCING PIPE BUSHING AP0602 15079 SHIPPING PLUG 11495A 15079 BALL BEARING S390 BALL BEARING S390...
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Page 26: Pump And Seal Disassembly And Reassembly
OM-01201 0 SERIES PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Before attempting to open or service the Review all SAFETY information in Section A. pump: 1. Familiarize yourself with this man ual. Follow the instructions on all tags, label and de 2. -
Page 27: Pump Casing And Wear Ring Removal
0 SERIES OM-01201 off the shaft. Use caution not to damage the impel sion jack with custom brackets should be ler. used to lift and position the pump and gearbox. Inspect the seal guard (15) for excessive wear or Close all valves in the suction and discharge lines. scoring. - Page 28 OM-01201 0 SERIES during reassembly. This could result in premature age. Clean and polish the shaft sleeve, or replace it failure. If necessary to reuse an old seal in an emer if there are nicks or cuts on either end. If any com gency, carefully wash all metallic parts in fresh ponents are worn, replace the complete seal;...
- Page 29 0 SERIES OM-01201 bore. Be careful not to damage the seal face. After rotation. Correct any scraping or binding before fur installation, wipe the seal face in a concentric pat ther reassembly. tern with a clean, lint‐free cloth to remove any fin Align the hole in the impeller washer (19) with the gerprints.
- Page 30 OM-01201 0 SERIES Step 1 Step 2 Step 3 Figure 4. Centering Impeller Within Pump Casing Install the calculated thickness of pump casing GEARBOX DISASSEMBLY gaskets. Secure the pump casing to the seal plate (Figure 2) with the nuts (33). When the pump is properly operated and main...
- Page 31 0 SERIES OM-01201 er plate gasket (8) and bearing adjusting shims (13 shorten bearing life. Do not spin dry bear and 17). Tie and tag the shims, or measure and re ings. This may scratch the balls or races cord their thickness for ease of reassembly. In and cause premature bearing failure.
- Page 32 OM-01201 0 SERIES oil and the container must be absolutely clean. If shown in Figure 2. Press the oil seal into the seal the oil has been previously used, it must be thor plate until the inner side of the seal is just flush with oughly filtered.
- Page 33 0 SERIES OM-01201 oil level reaches the bottom of the pipe plug hole in LUBRICATION the face of the gear housing. Clean and reinstall the air vent plug and the pipe plug. Do not over‐lubri Seal Assembly cate. Over‐lubrication can cause the bearings to over‐heat, resulting in premature bearing failure.
- Page 34 For Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419-755-1280 Canada: 519-631-2870 International: +1-419-755-1352 GORMAN‐RUPP PUMPS...
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