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GORMAN-RUPP PUMPS 81 1/2E52-B Installation, Operation, And Maintenance Manual With Parts List

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OM-00791-02
ABCE
September 16, 2003
Rev. A 03-14-05
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
80 SERIES PUMP
MODEL
81 1/2E52−B
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
www.gormanrupp.com
D
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
Printed in U.S.A.
e
Copyright by the Gorman-Rupp Company

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  • Page 1 OM-00791-02 ABCE September 16, 2003 Rev. A 03-14-05 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 80 SERIES PUMP MODEL 81 1/2E52−B THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.gormanrupp.com GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. Copyright by the Gorman-Rupp Company...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........PAGE I −...
  • Page 3 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR - SECTION E ....PAGE E − 1 PERFORMANCE CURVE ........... PAGE E −...

  • Page 4: Introduction

    80 SERIES OM−00791 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 5: Safety - Section A

    80 SERIES OM−00791 SAFETY - SECTION A This information applies to 80 Series ba- containing specified entrained solids. sic pumps. Gorman-Rupp has no con- Only the Gorman-Rupp Company or an trol over or particular knowledge of the authorized Gorman-Rupp distributor power source which will be used.
  • Page 6 OM−00791 80 SERIES 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 If this pump is used with volatile and/or pump casing to rupture or explode. flammable liquids, overheating may produce dangerous fumes.

  • Page 7: Installation − Section Bpage B

    80 SERIES OM−00791 INSTALLATION − SECTION B Review all SAFETY in Section A. specific application. Since the pressure supplied to the pump is critical to performance and safety, Since pump installations are seldom identical, this be sure to limit the incoming pressure to 50% of the section offers only general recommendations and maximum permissible operating pressure as practices required to inspect, position, and ar-...

  • Page 8: Preinstallation Inspection

    OM−00791 80 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- Use lifting and moving equipment in curred during shipment. Check as follows: good repair and with adequate capacity a.

  • Page 9: Materials

    80 SERIES OM−00791 Materials the source of the liquid being pumped; if the line slopes down to the pump at any point along the suction run, air pockets will be created. Either pipe or hose maybe used for suction and discharge lines;...

  • Page 10: Suction Line Positioning

    OM−00791 80 SERIES If there is a liquid flow from an open pipe into the tance equal to at least 3 times the diameter of the sump, the flow should be kept away from the suc- suction pipe. tion inlet because the inflow will carry air down into the sump, and air entering the suction line will re- Suction Line Positioning duce pump efficiency.

  • Page 11: Bypass Lines

    80 SERIES OM−00791 friction losses. Never install a throttling valve in a must be checked and realigned before operation. suction line. Before checking alignment, tighten the foundation bolts. The pump casing feet and/or pedestal feet, and the driver mounting bolts should also be tightly With high discharge heads, it is recommended that secured.

  • Page 12: V-Belt Drives

    OM−00791 80 SERIES MISALIGNED: MISALIGNED: ALIGNED: SHAFTS SHAFTS SHAFTS PARALLEL AND NOT PARALLEL NOT IN LINE SHEAVES IN LINE Figure 3C. Alignment of V-Belt Driven Pumps Tighten the belts in accordance with the belt manu- Figure 3B. Aligning Non-Spider Type Cou- plings facturer’s instructions.

  • Page 13: Operation − Section C

    OM−00791 80 SERIES OPERATION − SECTION C Review all SAFETY information in Section A. PRIMING Follow the instructions on all tags, labels and Install the pump and piping as described in IN- decals attached to the pump. STALLATION. Make sure that the piping connec- tions are tight, and that the pump is securely mounted.

  • Page 14: Starting

    OM−00791 80 SERIES Lines Without a Bypass STARTING Open all valves in the discharge line and start the Consult the operations manual furnished with the engine. Priming is indicated by a positive reading power source. on the discharge pressure gauge or by a quieter operation.

  • Page 15: Strainer Check

    OM−00791 80 SERIES Strainer Check If a suction strainer has been shipped with the If the application involves a high discharge pump or installed by the user, check the strainer head, gradually close the discharge regularly, and clean it as necessary. The strainer throttling valve before stopping the pump.

  • Page 16: Troubleshooting − Section D

    80 SERIES OM−00791 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. Lock out or disconnect the power source to ensure that the pump will remain inoperative.
  • Page 17 OM−00791 80 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Suction intake not submerged at Check installation and correct PUMP STOPS OR FAILS TO DELIVER proper level or sump too small. submergence as needed. RATED FLOW OR Replace worn or damaged parts. Impeller or other wearing parts worn PRESSURE (cont.) Check that impeller is properly...

  • Page 18: Preventive Maintenance

    80 SERIES OM−00791 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 OM−0791 80 SERIES 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 1/2E52−B Based on 70_ F (21 _ C) clear water at sea level Contact the Gorman-Rupp Company to verify per- formance or part numbers.
  • Page 20 OM−00791 80 SERIES PARTS PAGE SECTION DRAWING Figure 1. Pump Model 81 1/2E52−B PAGE E − 2 MAINTENANCE & REPAIR...
  • Page 21 OM−0791 80 SERIES PARTS LIST Pump Model 81 1/2E52−B (From S/N 1271304 up) ITEM PART NAME PART MAT’L ITEM PART NAME PART MAT’L NUMBER CODE NUMBER CODE PUMP CASING 6477 10010 IMPELLER 6479A 10010 SEAL ASSY 25285−852 −−− FILL PLUG ASSY 48271−060 −−−...
  • Page 22 OM−00791 80 SERIES PUMP AND SEAL DISASSEMBLY 4. Check the temperature before opening any covers, plates, or AND REASSEMBLY plugs. 5. Close the suction and discharge Review all SAFETY information in Section A. valves. Follow the instructions on all tags, label and de- 6.
  • Page 23 80 SERIES OM−00791 Impeller Removal to the bearing housing (19). Carefully slide the in- termediate and rotating portion of the seal assem- Immobilize the impeller by wedging a block of bly off the shaft. wood or a brass rod between the vanes. Remove the impeller jam nut (28).
  • Page 24 OM−00791 80 SERIES If bearing replacement is required, use a bearing puller or an arbor (or hydraulic) press to remove the bearings from the impeller shaft. To prevent damage during removal from the shaft, it is recommended that bearings Shaft And Bearing Reassembly And be cleaned and inspected in place.
  • Page 25 80 SERIES OM−00791 Most cleaning solvents are toxic and When installing the bearings onto the flammable. Use them only in a well-ven- shaft, never press or hit against the outer tilated area free from excessive heat, race, balls, or ball cage. Press only on the sparks, and flame.
  • Page 26 OM−00791 80 SERIES RETAINER SEAL PLATE BELLOWS ROTATING ELEMENT IMPELLER IMPELLER IMPELLER STATIONARY SHAFT ELEMENT IMPELLER SHIMS SPRING CENTERING WASHER STATIONARY DRIVE BAND SPRING SEAT Figure 3. 25285−852 Seal Assembly Install the seal spring and spring centering washer (17). This seal is not designed for operation at Impeller Installation temperatures above 160_F (71_C).
  • Page 27 80 SERIES OM−00791 Vane Plate and Pump Casing Installation Refer to OPERATION, Section C, before putting the pump back into service. Apply ‘3-M Adhesive EC-847’ or equivalent com- pound to the back of the vane plate, and secure the vane plate to the intermediate with the hardware (5, LUBRICATION 6, 25 and 26).
  • Page 28 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...

This manual is also suitable for:

80 series

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