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- Page 1 OM‐00574‐02 June 8, 1984 Rev. C 12‐21‐2015 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 11 1/2A22‐B GORMAN‐RUPP PUMPS www.grpumps.com 1984 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 MAINTENANDE .
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Page 5: Introduction
10 SERIES OM-00574 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-00574 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-00574 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 1/2A22-B INSTALLATION PAGE B - 1... -
Page 9: Preinstallation Inspection
OM-00574 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-00574 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-00574 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-00574 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-00574 10 SERIES stalled anywhere in a bypass line, it must moving the plug to prevent injury to per be a full‐opening, ball‐type valve to pre sonnel from hot liquid. vent plugging by solids. AUTOMATIC AIR RELEASE VALVE 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-00574 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-00574 10 SERIES when the 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-00574 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-00574 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-00574 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-00574 10 SERIES Consult the operating manual furnished with the Leakage power source before attempting to start the power source. No leakage should be visible at pump mating sur faces, or at pump connections or fittings. Keep all line connections and fittings tight to maintain maxi If an electric motor is used to drive the pump, re... -
Page 20: Pump Vacuum Check
OM-00574 10 SERIES Pump Vacuum Check Temperatures up to 160_F (71_C) are considered normal for bearings, and they can operate safely to With the pump inoperative, install a vacuum gauge at least 180_F (82_C). in the system, using pipe dope on the threads. Block the suction line and start the pump. - Page 21 10 SERIES OM-00574 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-00574 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-00574 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 1/2A22-B Based on 70_F (21_C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
- Page 25 OM-00574 10 SERIES PARTS PAGE SECTION DRAWING Figure E-1. Pump Model 11 1/2A22-B PAGE E - 2 MAINTENANCE & REPAIR...
- Page 26 10 SERIES OM-00574 PARTS LIST Pump Model 11 1/2A22-B (From S/N 1060190 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 OM-00574 10 SERIES PUMP AND SEAL DISASSEMBLY 4. Check the temperature before AND REASSEMBLY opening any covers, plates, or plugs. Review all SAFETY information in Section A. 5. Close the suction and discharge valves. Follow the instructions on all tags, label and de 6.
- Page 28 10 SERIES OM-00574 back cover gasket (42). Clean the mating surfaces Impeller Removal of the back cover plate and pump casing. Before removing the impeller, remove the bottle oil er and piping (10, 11, 12 and 13). Remove the seal Inspect the wear plate and replace it if badly scored cavity drain plug (32) and drain the oil from the seal or worn.
- Page 29 OM-00574 10 SERIES sure and record their thickness for ease of reas Use an arbor (or hydraulic) press and a dowel to sembly. remove the oil seal from the bearing cap. Slide the bearing shims (21) off the impeller shaft. Seal Removal and Disassembly Tie and tag the shims or measure and record their thickness for ease of reassembly.
- Page 30 10 SERIES OM-00574 oughly filtered. races and cause premature bearing fail ure. Heat the bearings to a uniform temperature no Rotate the bearings by hand to check for rough higher than 250_F (120_C), and slide the bearings ness or binding and inspect the bearing balls. If ro onto the shaft, one at a time, until they are fully tation is rough or the bearing balls are discolored, seated against the shaft shoulders.
- Page 31 OM-00574 10 SERIES ing cap to the pedestal with the lubrication fitting or emery cloth. If excessive wear exists, the shaft (22) up. Install the pedestal foot (29) and secure will have to be replaced. with the hardware (23 and 24). Be careful not to The seal is not normally reused because wear pat...
- Page 32 10 SERIES OM-00574 DRIVE BANDS SEAL PLATE SPRING STATIONARY SPRING CENTERING ELEMENT WASHER IMPELLER STATIONARY SEAT IMPELLER SHAFT SHAFT SLEEVE O‐RINGS IMPELLER SHIMS ROTATING BELLOWS ELEMENT Figure 3. Seal Assembly Slide the seal plate over the shaft until fully seated against the pedestal (19).
- Page 33 OM-00574 10 SERIES Impeller Installation And Adjustment Clean any scales or debris from the contacting sur faces on the pump casing that might prevent a Inspect the impeller, and replace it if cracked or good seal with the back cover. Replace the back badly worn.
- Page 34 10 SERIES OM-00574 Be sure the pump and power source have been There are no provisions in the bearing cavity to properly lubricated, see LUBRICATION. drain or flush the lubricant. The pump and pedestal must be disassembled to completely clean and Remove the fill plug assembly (5) and fill the pump maintain this cavity.
- 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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