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Summary of Contents for GORMAN-RUPP PUMPS 81 1/2D3-X1 3P
- Page 1 OM-00760-06 January 23, 1980 Rev. B 07‐02‐19 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 80 SERIES PUMP MODEL 81 1/2D3-X1 3P GORMAN‐RUPP PUMPS www.grpumps.com 1980 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) PARTS LIST: Pump Model ............PAGE E - 3 PUMP AND SEAL DISASSEMBLY AND REASSEMBLY .
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Page 5: Introduction
80 SERIES OM-00760 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
80 SERIES OM-00760 SAFETY - SECTION A This information applies to 80 Series electric motor driven pumps. Refer to the manual accompanying the motor before attempting to begin operation. This pump is designed to handle petro leum products or other industrial liq This manual will alert personnel to uids that do not contain large entrained known procedures which require spe... - Page 7 OM-00760 80 SERIES the applicable local code, the National or local code shall take precedence. Overheated pumps can cause severe burns and injuries. If overheating of the pump occurs: Because this pump is designed to han 1. Stop the pump immediately. dle volatile and/or flammable liquids, 2.
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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 Models 81 1/2D3-X1 3P PREINSTALLATION INSPECTION a. Inspect the pump and motor for cracks, dents, damaged threads, and other obvious damage. -
Page 9: Positioning Pump
OM-00760 80 SERIES ing, check for loose hardware at mating sur POSITIONING PUMP faces. Lifting c. Carefully read all warnings and cautions con Pump unit weights will vary depending on the tained in this manual or affixed to the pump, mounting and drive provided. -
Page 10: Connections To Pump
80 SERIES OM-00760 mum use of elbows and fittings, which substan Strainers tially increase friction loss. If elbows are necessary, If a strainer is furnished with the pump, be certain use the long‐radius type to minimize friction loss. to use it; any spherical solids which pass through a strainer furnished with the pump will also pass Connections to Pump through the pump itself. -
Page 11: Suction Line Positioning
OM-00760 80 SERIES tance equal to at least 3 times the diameter of the NOTE suction pipe. The pipe submergence required may be reduced by installing a standard pipe increaser fitting at the Suction Line Positioning end of the suction line. The larger opening size will reduce the inlet velocity. -
Page 12: Bypass Lines
Refer to the following motor data before making power. electrical connections. MODEL VOLTAGE PHASE F.L. AMPS 81 1/2D3-X1 3P 230/460 3450 3.6/1.8 GROUNDING tight electrical connection with the rod and the pump. Because this pump is used to handle volatile or... -
Page 13: Operation - Section C
OM-00760 80 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 14: Lines Without A Bypass
OM-00760 80 SERIES Close the throttling valve in the discharge line and Liquid Temperature And Overheating open the shut‐off valve in the bypass line so that The maximum liquid temperature for this pump is the pump will not have to prime against the weight 160_ F (71_ C). -
Page 15: Stopping
OM-00760 80 SERIES Block the suction line and start the pump. At oper ating speed the pump should pull a vacuum of 20 inches (508,0 mm) or more of mercury. If it does not, check for air leaks in the seal, gasket, or dis Do not operate the pump against a charge valve. -
Page 16: Troubleshooting - Section D
80 SERIES OM-00760 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 the incoming power to the motor and lock it out to ensure that the pump will remain inoperative. - Page 17 OM-00760 80 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Leaking or worn seal or pump gasket. Check pump vacuum. Replace FAILS TO DELIVER leaking or worn seal or gasket. RATED FLOW OR Impeller clogged. Free impeller of debris. PRESSURE (cont.) Low or incorrect voltage.
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Page 18: Preventive Maintenance
80 SERIES OM-00760 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 19: 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 81 1/2D3-X1 3P Based on 70_ F (21_ C) clear water at sea level Contact the Gorman‐Rupp Company to verify per... - Page 20 OM-00760 80 SERIES SECTION DRAWING PARTS PAGE Figure 1. Pump Model 81 1/2D3-X1 3P PAGE E - 2 MAINTENANCE & REPAIR...
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Page 21: Parts List: Pump Model
80 SERIES OM-00760 PARTS LIST Pump Model 81 1/2D3-X1 3P (From S/N 326949N 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. -
Page 22: Pump And Seal Disassembly And Reassembly
OM-00760 80 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 23: Pump Casing And Vane Plate Removal
80 SERIES OM-00760 Inspect the impeller and replace it if cracked or clothing and shoes. Clean up all fuel badly worn. Slide the impeller adjusting shims (23) spills immediately after occurrence. off the impeller shaft. Tie and tag the shims, or measure and record their thickness for ease of reassembly. - Page 24 OM-00760 80 SERIES non‐oil based solvent and a clean, lint‐free tissue. If a replacement seal is being used, remove it from Wipe lightly in a concentric pattern to avoid the container and inspect the precision‐finished scratching the faces. faces to ensure that they are free of any foreign matter.
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Page 25: Impeller Installation
80 SERIES OM-00760 Impeller Installation Install the vane plate O‐ring (15) and the pump cas ing gasket (4). Carefully slide the pump casing over the vane plate and secure it to the intermedi Inspect the impeller, and replace it if cracked or ate with the nuts (6). - Page 26 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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