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- Page 1 OM‐00615‐02 April 2, 2002 Rev. D 12‐17‐2015 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 11 1/2A52‐B GORMAN‐RUPP PUMPS www.grpumps.com 2002 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) TROUBLESHOOTING - SECTION D ......PAGE D - 1 PREVENTIVE MAINTENANCE .
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Page 5: Introduction
10 SERIES OM-00615 INTRODUCTION Thank You for purchasing a Gorman‐Rupp pump. HAZARD AND INSTRUCTION Read this manual carefully to learn how to safely DEFINITIONS install and operate your pump. Failure to do so could result in personal injury or damage to the The following are used to alert maintenance per... -
Page 6: Safety - Section A
10 SERIES OM-00615 SAFETY ‐ SECTION A This information applies to 10 Series ba 5. Close the suction and discharge sic pumps. Gorman‐Rupp has no con valves. trol over or particular knowledge of the 6. Vent the pump slowly and cau power source which will be used. - Page 7 OM-00615 10 SERIES Do not operate the pump without the Do not remove plates, covers, gauges, shields and/or guards in place over the pipe plugs, or fittings from an over drive shaft, belts, and/or couplings, or heated pump. Vapor pressure within the other rotating parts.
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Page 8: Installation - Section B
See Figure 1 for the approximate physical dimen configuration, and priming must be tailored to the sions of this pump. OUTLINE DRAWING Figure 1. Pump Model 11 1/2A52-B INSTALLATION PAGE B - 1... -
Page 9: Preinstallation Inspection
OM-00615 10 SERIES PREINSTALLATION INSPECTION POSITIONING PUMP The pump assembly was inspected and tested be fore shipment from the factory. Before installation, inspect the pump for damage which may have oc Death or serious personal injury and curred during shipment. Check as follows: damage to the pump or components a. -
Page 10: Suction And Discharge Piping
10 SERIES OM-00615 Installation closer to the pump may result in erratic SUCTION AND DISCHARGE PIPING readings. SUCTION LINES Pump performance is adversely effected by in creased suction lift, discharge elevation, and fric To avoid air pockets which could affect pump prim tion losses. -
Page 11: Suction Lines In Sumps
OM-00615 10 SERIES Suction Lines In Sumps of one or both pumps. To avoid this, position the suction inlets so that they are separated by a dis If a single suction line is installed in a sump, it tance equal to at least 3 times the diameter of the should be positioned away from the wall of the suction pipe. -
Page 12: Discharge Lines
10 SERIES OM-00615 pass line should be at least 1 inch (25,4 mm) in di DISCHARGE LINES ameter to minimize the chance of plugging. Siphoning In low discharge head applications (less than 30 Do not terminate the discharge line at a level lower feet (9,1 m)), it is recommended that the bypass than that of the liquid being pumped unless a si... -
Page 13: Automatic Air Release Valve
OM-00615 10 SERIES stalled anywhere in a bypass line, it must AUTOMATIC AIR RELEASE VALVE be a full‐opening, ball‐type valve to pre vent plugging by solids. When properly installed, a Gorman‐Rupp Auto matic Air Release Valve will permit air to escape through the bypass line and then close automati... -
Page 14: Alignment
10 SERIES OM-00615 DISCHARGE PIPE CLEAN‐OUT COVER INSTALL AIR RELEASE VALVE IN HORIZONTAL POSITION DISCHARGE CHECK VALVE 90_ LONG RADIUS ELBOW SUPPORT PUMP DISCHARGE BRACKET SELF‐PRIMING CENTRIFUGAL PUMP BLEED LINE 1” (25,4 MM) DIA. MIN. (CUSTOMER FUR NISHED) DO NOT EX SUCTION TEND BELOW PUMP LINE... -
Page 15: Coupled Drives
OM-00615 10 SERIES hubs are the same distance apart at all points (see Figure 4B). Check parallel adjustment by laying a straightedge Adjusting the alignment in one direction across both coupling rims at the top, bottom, and may alter the alignment in another direc side. -
Page 16: V-Belt Tensioning
10 SERIES OM-00615 The ratio of deflection to belt span is 1:64 for both parts can catch clothing, fingers, or tools, causing severe injury to person ASA and metric units. Therefore, a belt with a span nel. of 64 inches would require a deflection of 1 inch at the force shown on the Tables for your particular V‐BELT TENSIONING application. - Page 17 OM-00615 10 SERIES Table 1. Sheave Diameter (Inches) Table 2. Sheave Diameter (Millimeters) Deflection Force (Lbs.) Deflection Force (KG.) Belt Deflection Force Belt Deflection Force Uncogged Cogged Uncogged Cogged Hy‐T Belts & Torque‐Flex Hy‐T Belts & Torque‐Flex Uncogged & Machined Uncogged &...
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Page 18: Operation - Section C
OM-00615 10 SERIES OPERATION - SECTION C Review all SAFETY information in Section A. 1. The pump is being put into service for the first time. Follow the instructions on all tags, labels and 2. The pump has not been used for a consider decals attached to the pump. -
Page 19: Operation
OM-00615 10 SERIES Consult the operating manual furnished with the filled, adjust the throttling valve to the required flow power source before attempting to start the power rate. source. Leakage If an electric motor is used to drive the pump, re move V‐belts, couplings, or otherwise disconnect No leakage should be visible at pump mating sur... -
Page 20: Pump Vacuum Check
OM-00615 10 SERIES maximum permissible operating pressure shown BEARING TEMPERATURE CHECK on the pump performance curve (see Section E, Page 1). Bearings normally run at higher than ambient tem peratures because of heat generated by friction. Temperatures up to 160 F (71 C) are considered Pump Vacuum Check... - Page 21 10 SERIES OM-00615 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 to ensure that the pump will remain inoperative.
- Page 22 OM-00615 10 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 RATED FLOW OR centered and rotates freely. PRESSURE (cont.) Impeller clogged.
- Page 23 10 SERIES OM-00615 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.
- Page 24 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 11 1/2A52-B Based on 70 F (21 C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
- Page 25 10 SERIES OM-00615 PARTS PAGE ILLUSTRATION Figure E-1. Pump Model 11 1/2A52-B PAGE E - 2 MAINTENANCE & REPAIR...
- Page 26 OM-00615 10 SERIES PARTS LIST Pump Model 11 1/2A52-B (From S/N 1241127 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...
- Page 27 10 SERIES OM-00615 PUMP AND SEAL DISASSEMBLY 3. Allow the pump to completely cool AND REASSEMBLY if overheated. 4. Check the temperature before Review all SAFETY information in Section A. opening any covers, plates, or plugs. Follow the instructions on all tags, label and de 5.
- Page 28 OM-00615 10 SERIES Pump Casing Removal (when facing the drive end of the shaft). The impel ler may also be loosened by using a long piece of heavy bar stock to pry against the arm of the lathe dog in a counterclockwise direction (when facing the drive end of the shaft) as shown in Figure 2.
- Page 29 10 SERIES OM-00615 Inspect the seal plate and replace it if cracked or be cleaned and inspected in place. It is badly worn. strongly recommended that the bearings be replaced any time the shaft and bear If no further disassembly is required, see Seal ings are removed.
- Page 30 OM-00615 10 SERIES Use caution when handling hot bear Most cleaning solvents are toxic and ings to prevent burns. flammable. Use them only in a well‐ven After the bearings have been installed and allowed tilated area free from excessive heat, to cool, check to ensure that they have not moved sparks, and flame.
- Page 31 10 SERIES OM-00615 Lubricate the pedestal as indicated in LUBRICA gency, carefully wash all metallic parts in fresh TION at the end of this section. cleaning solvent and allow to dry thoroughly. Handle the seal parts with extreme care to prevent Seal Reassembly and Installation damage.
- Page 32 OM-00615 10 SERIES RETAINER SEAL PLATE SPRING SLINGER RING IMPELLER IMPELLER SHIMS SHAFT SLEEVE ROTATING STATIONARY IMPELLER ELEMENT ELEMENT SHAFT BELLOWS SPRING RETAINER DRIVE BAND STATIONARY SEAT Figure E-3. Seal Assembly the shaft until the seal elements contact. Continue to push the sleeve through the seal until it bottoms against the shaft shoulder.
- Page 33 10 SERIES OM-00615 Pump Casing Installation (31). Do not over‐tighten the clamp bar screw; it should be just tight enough to seal the back cover Remove the hardware temporarily securing the shoulder. seal plate to the pedestal. Install the same thick ness of pump casing gaskets (21) as previously re...
- Page 34 OM-00615 10 SERIES Bearings When lubricating a dry (overhauled) pedestal, fill the cavity with approximately 1.5 ounces (43 grams) of grease. The pedestal was fully lubricated when shipped from the factory. Under normal conditions, remove For cold weather operation, consult the factory or a the vented plug (13) and add one shot of No.
- Page 35 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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