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C
OM‐02149‐01
December 20, 1982
Rev. C 11‐20‐2013
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
10 SERIES PUMP
MODEL
12B65‐B
THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO
www.grpumps.com
D
GORMAN‐RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
Printed in U.S.A.
e
1982 The Gorman‐Rupp Company
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Related Manuals for GORMAN-RUPP PUMPS 12B65-B
Summary of Contents for GORMAN-RUPP PUMPS 12B65-B
- Page 1 OM‐02149‐01 December 20, 1982 Rev. C 11‐20‐2013 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 12B65‐B THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. 1982 The Gorman‐Rupp Company...
- 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-02149 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
10 SERIES OM-02149 SAFETY ‐ SECTION A This information applies to 10 Series ba 6. Vent the pump slowly and cau sic pumps. Gorman‐Rupp has no con tiously. trol over or particular knowledge of the 7. Drain the pump. power source which will be used. Refer to the manual accompanying the power source before attempting to begin oper... - Page 7 OM-02149 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 12B65-B INSTALLATION PAGE B - 1... -
Page 9: Preinstallation Inspection
OM-02149 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-02149 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-02149 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-02149 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-02149 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-02149 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-02149 10 SERIES when the hubs are the same distance apart at all points (see Figure 3B). 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-02149 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-02149 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-02149 10 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 19: Operation
OM-02149 10 SERIES sprinkler heads, and any other fixtures connected from the shaft and seriously damage the to the line. When the discharge line is completely pump. filled, adjust the throttling valve to the required flow Consult the operating manual furnished with the rate. -
Page 20: Pump Vacuum Check
OM-02149 10 SERIES equipment. If backflushing is absolutely neces BEARING TEMPERATURE CHECK sary, liquid pressure must be limited to 50% of the maximum permissible operating pressure shown Bearings normally run at higher than ambient tem on the pump performance curve (see Section E, peratures because of heat generated by friction. - Page 21 10 SERIES OM-02149 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-02149 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-02149 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 12B65-B Based on 70_ F (21_ C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
- Page 25 OM-02149 10 SERIES PARTS PAGE SECTION DRAWING Figure E-1. Pump Model 12B65-B PAGE E - 2 MAINTENANCE & REPAIR...
- Page 26 10 SERIES OM-02149 PARTS LIST Pump Model 12B65‐B (From S/N 776101 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 NAME PART MAT'L ITEM...
- Page 27 OM-02149 10 SERIES PUMP AND SEAL DISASSEMBLY 3. Allow the pump to completely cool AND REASSEMBLY if overheated. 4. Check the temperature before opening any covers, plates, or Review all SAFETY information in Section A. plugs. Follow the instructions on all tags, label and de 5.
- Page 28 10 SERIES OM-02149 Pump Casing Removal When the impeller breaks loose, remove the lathe dog and wood block and unscrew the impeller from the shaft. Turn Death or serious personal injury and Counterclockwise damage to the pump or components can occur if proper lifting procedures are not observed.
- Page 29 OM-02149 10 SERIES Shaft and Bearing Removal and Disassembly When the pump is properly operated and main tained, the pedestal should not require disassem To prevent damage during removal from bly. Disassemble the shaft and bearings only the shaft, it is recommended that bearings when there is evidence of wear or damage.
- Page 30 10 SERIES OM-02149 Replace the bearings, shaft, or pedestal if the curred, use a suitably sized sleeve and a press to proper bearing fit is not achieved. reposition the bearings. If bearing replacement is required, use a bearing If heating the bearings is not practical, use a suit puller to remove the inboard and outboard bear...
- Page 31 OM-02149 10 SERIES Install the slinger ring (30) and shaft key (20). Install gency, carefully wash all metallic parts in fresh any leveling shims used under the pedestal feet. cleaning solvent and allow to dry thoroughly. Handle the seal parts with extreme care to prevent Seal Reassembly and Installation damage.
- Page 32 10 SERIES OM-02149 SEALING DISC SEAL CLAMP WEDGE SPRING IMPELLER GASKETS IMPELLER SHAFT SHAFT SLEEVE IMPELLER STATIONARY SHIMS SEAT RETAINER ROTATING ELEMENT SEAL PLATE Figure 3. Seal Assembly Slide the rotating portion of the seal onto the lubri cated shaft sleeve to the dimension (or scribed line) noted during disassembly.
- Page 33 OM-02149 10 SERIES Pump Casing Installation Secure the back cover assembly by installing the clamp bar (48) and tightening the clamp bar screw Remove the hardware temporarily securing the (47). Do not over‐tighten the clamp bar screw; it seal plate to the pedestal. Install the same thick should be just tight enough to seal the back cover ness of pump casing gaskets (36) as previously re...
- Page 34 10 SERIES OM-02149 LUBRICATION Monitor the condition of the bearing lubri cant regularly for evidence of rust or mois Bearings ture condensation. This is especially im portant in areas where variable hot and cold temperatures are common. The pedestal was fully lubricated when shipped For cold weather operation, consult the factory or a from the factory.
- Page 35 For U.S. and International Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419-755-1280 International: +1-419-755-1352 For Canadian Warranty Information, Please Visit www.grcanada.com/warranty or call: 519-631-2870 THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA...
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