GORMAN-RUPP PUMPS 81 1/2A52-B Installation, Operation, And Maintenance Manual With Parts List
  1. Manuals
  2. Brands
  3. GORMAN-RUPP PUMPS Manuals
  4. Water Pump
  5. 81 1/2A52-B
  6. Installation, operation, and maintenance manual with parts list

GORMAN-RUPP PUMPS 81 1/2A52-B Installation, Operation, And Maintenance Manual With Parts List

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
ABCDE
OM-00789-02
November 6, 2001
Rev. A 03-14-05
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
80 SERIES PUMP
MODEL
81 1/2A52-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

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 81 1/2A52-B and is the answer not in the manual?

Questions and answers

Related Manuals for GORMAN-RUPP PUMPS 81 1/2A52-B

Summary of Contents for GORMAN-RUPP PUMPS 81 1/2A52-B

  • Page 1 Rev. A 03-14-05 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 80 SERIES PUMP MODEL 81 1/2A52-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 STANDARD PERFORMANCE CURVE ........PAGE E −...

  • Page 4: Introduction

    80 SERIES OM−00789 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−00789 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−00789 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−00789 INSTALLATION − SECTION B Review all SAFETY information 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−00789 80 SERIES PREINSTALLATION INSPECTION good repair and with adequate capacity to prevent injuries to personnel or dam- The pump assembly was inspected and tested be- age to equipment. Suction and dis- fore shipment from the factory. Before installation, charge hoses and piping must be re- inspect the pump for damage which may have oc- moved from the pump before lifting.

  • Page 9: Line Configuration

    80 SERIES OM−00789 ing piping couplings in suction lines is not recom- stalled with the flat part of the reducers uppermost mended. to avoid creating air pockets. Valves are not nor- mally used in suction lines, but if a valve is used, Line Configuration install it with the stem horizontal to avoid air pock- ets.

  • Page 10: Suction Line Positioning

    OM−00789 80 SERIES air to escape from the liquid before it is drawn into critical to efficient pump operation. Figure 2 shows the suction inlet. recommended minimum submergence vs. veloc- ity. If two suction lines are installed in a single sump, the flow paths may interact, reducing the efficiency NOTE of one or both pumps.

  • Page 11: Bypass Lines

    80 SERIES OM−00789 head, gradually close the discharge throttling valve before stopping the pump. Adjusting the alignment in one direction Bypass Lines may alter the alignment in another direc- tion. check each procedure after altering alignment. If a system check valve is used due to high dis- charge head, it may be necessary to vent trapped Coupled Drives air from the top of the pump during the priming...

  • Page 12: V-Belt Drives

    OM−00789 80 SERIES when the hubs are the same distance apart at all Tighten the belts in accordance with the belt manu- points (see Figure 3B). facturer’s instructions. If the belts are too loose, they will slip; if the belts are too tight, there will be excessive power loss and possible bearing failure.

  • Page 13: Operation − Section C

    OM−00789 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−00789 80 SERIES STARTING OPERATION Lines With a Bypass Consult the operations manual furnished with the power source. Close the discharge throttling valve (if so equipped) so that the pump will not have to prime If the pump has been approved for use with petro- against the weight of the liquid in the discharge line.

  • Page 15: Strainer Check

    OM−00789 80 SERIES boil, build pressure, and cause the pump to rup- lift, and should then stabilize. If the vacuum reading ture or explode. If overheating occurs, stop the falls off rapidly after stabilization, an air leak exists. pump and allow it to completely cool before servic- Before checking for the source of the leak, check the point of installation of the vacuum gauge.
  • Page 16 OM−00789 80 SERIES curately by placing a contact-type thermometer rect level (see LUBRICATION in Section E). Bear- against the housing. Record this temperature for ing overheating can also be caused by shaft future reference. misalignment and/or excessive vibration. A sudden increase in bearing temperatures is a When pumps are first started, the bearings may warning that the bearings are at the point of failing seem to run at temperatures above normal.

  • Page 17: Troubleshooting − Section D

    80 SERIES OM−00789 TROUBLESHOOTING − SECTION D Review all SAFETY information in Section A. Before attempting to open or service the pump: 1. Familiarize yourself with this man- ual. 2. Lock out or disconnect the power source to ensure that the pump will remain inoperative.
  • Page 18 OM−00789 80 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 19: Preventive Maintenance

    80 SERIES OM−00789 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 20 OM−00789 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 1/2A52−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 21 80 SERIES OM−00789 SECTION DRAWING PARTS PAGE Figure 1. Pump Model 81 1/2A52−B PAGE E − 2 MAINTENANCE & REPAIR...
  • Page 22 OM−00789 80 SERIES PARTS LIST Pump Model 81 1/2A52-B (From S/N 1233759 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 MAT’L...
  • Page 23 80 SERIES OM−00789 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. 6. Vent the pump slowly and cau- Follow the instructions on all tags, label and de- tiously.
  • Page 24 OM−00789 80 SERIES Pump Casing and Wear Plate Removal Unscrew the impeller from the shaft. Use caution when removing the impeller; tension on the seal To service the wear plate (21), remove the nuts (18) spring will be released as the impeller is un- securing the pump casing to the seal plate (19) and screwed.
  • Page 25 80 SERIES OM−00789 Remove the slinger ring (7) from the shaft. Remove the pedestal mounting hardware from the base. Tie and tag any shims used under the mounting feet for leveling. Bearings must be kept free of all dirt and Use snap ring pliers to remove the bearing retain- foreign material.
  • Page 26 OM−00789 80 SERIES NOTE If a hot oil bath is used to heat the bearings, both the oil and the container must be absolutely clean. If the oil has been previously used, it must be thor- When installing the shaft and bearings into oughly filtered.
  • Page 27 80 SERIES OM−00789 non-oil based solvent and a clean, lint-free tissue. If a replacement seal is being used, remove it from the container and inspect the precision finished Wipe lightly in a concentric pattern to avoid faces to ensure that they are free of any foreign scratching the faces.
  • Page 28 OM−00789 80 SERIES Slide the shaft sleeve onto the impeller shaft until cure the pump casing to the seal plate and pedes- the seal faces contact. Continue to push the sleeve tal with the nuts (18). through the seal until the sleeve seats squarely against the shaft shoulder.
  • Page 29 80 SERIES OM−00789 ever comes first. Do not over-lubricate. Over-lu- Under normal conditions, change the grease after brication will cause the bearings to over-heat, re- each 5000 hours of operation, or at 12 month inter- sulting in premature bearing failure. vals, whichever comes first.
  • Page 30 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

Table of Contents