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GORMAN-RUPP PUMPS 50 Series Installation, Operation, And Maintenance Manual With Parts List

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ACE
OM−01322−05
July 9, 1984
Rev. A 05-21-10
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
50 SERIES PUMP
MODEL
53H2−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
2010 The Gorman-Rupp Company

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  • Page 1 OM−01322−05 July 9, 1984 Rev. A 05-21-10 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 50 SERIES PUMP MODEL 53H2−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. 2010 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:...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........PAGE I −...
  • Page 4 TABLE OF CONTENTS (continued) TROUBLESHOOTING − SECTION D ......PAGE D − 1 PUMP MAINTENANCE AND REPAIR - SECTION E .

  • Page 5: Introduction

    This pump is a 50 Series, basic centrifugal model with an enclosed impeller. The pump is designed for handling clean liquids at high heads and high discharge pressures.

  • Page 6: Safety - Section A

    50 SERIES OM−01322 SAFETY - SECTION A This information applies to 50 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...
  • Page 7 OM−01322 50 SERIES charge valve, pump components will deteriorate, and the liquid could come to a boil, build pressure, and cause the pump casing to rupture or explode. Overheated pumps can cause severe burns and injury. If overheating of the pump occurs: 1.

  • Page 8: Installation − Section Bpage B

    50 SERIES OM−01322 INSTALLATION − SECTION B Review all SAFETY information in Section A. configuration, and priming must be tailored to the specific application. This pump is equipped with a Since pump installations are seldom identical, this Gorman-Rupp double grease lubricated seal,...

  • Page 9: Positioning Pump

    OM−01322 50 SERIES c. Carefully read all tags, decals, and markings damaged if the cables or chains used to lift on the pump assembly, and perform all duties and move the unit are improperly wrapped indicated. around the pump. d. Check levels and lubricate as necessary. Re-...

  • Page 10: Gauges

    50 SERIES OM−01322 Lines near the pump must be independently sup- line, and that the openings will not permit passage ported to avoid strain on the pump which could of solids larger than the solids handling capability cause excessive vibration, decreased bearing life, of the pump.

  • Page 11: Discharge Lines

    OM−01322 50 SERIES by installing a standard pipe increaser fitting at the submergence using the following formula based end of the suction line. The larger opening size will on the increased opening size (area or diameter). reduce the inlet velocity. Calculate the required Figure 2.

  • Page 12: Alignment

    50 SERIES OM−01322 Align spider insert type couplings by using calipers ALIGNMENT to measure the dimensions on the circumference of the outer ends of the coupling hub every 90_. The alignment of the pump and its power source is The coupling is in alignment when the hub ends critical for trouble-free mechanical operation.

  • Page 13: Drive Belt Tensioning

    OM−01322 50 SERIES tems using two or more belts, make certain that the Under-tensioning will cause belt slippage. Always belts are a matched set; unmatched sets will cause keep belts free from dirt, grease, oil and other for- accelerated belt wear.
  • Page 14 50 SERIES OM−01322 Place the tension tester squarely on the belt at the O-ring on the deflection force scale. Compare this center of the belt span. Apply force on the plunger, force with the value shown in Table 1 or 2 and ad- perpendicular to the belt span, until the bottom of just the tension accordingly.
  • Page 15 OM−01322 50 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 &...

  • Page 16: Operation − Section C

    OM−01322 50 SERIES OPERATION − SECTION C Review all SAFETY information in Section A. the priming device and pump to preserve the prime. Start the pump and open the discharge Follow the instructions on all tags, labels and de- valve slowly to fill the discharge line. When installed cals attached to the pump.

  • Page 17: Auxiliary Ejectors

    OM−01322 50 SERIES a venturi which creates a vacuum in the pump cas- Rotation ing in order to fill the suction line and pump casing The correct direction of pump rotation is counter- with liquid. To prime a pump using an exhaust clockwise when facing the impeller.

  • Page 18: Strainer Check

    OM−01322 50 SERIES against closed valves could bring the liquid to a inches (508,0 mm) or more of mercury. If it does boil, build pressure, and cause the pump to rup- not, check for air leaks in the seal, gasket, or dis- ture or explode.

  • Page 19: Bearing Temperature Check

    OM−01322 50 SERIES A sudden increase in bearing temperature is a BEARING TEMPERATURE CHECK warning that the bearings are at the point of failing to operate properly. Make certain that the bearing Bearings normally run at higher than ambient tem- lubricant is of the proper viscosity and at the cor- peratures because of heat generated by friction.
  • Page 20 50 SERIES OM−01322 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 21 OM−01322 50 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.) Strainer clogged.
  • Page 22 50 SERIES OM−01322 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 23 50 SERIES OM−01322 PUMP MAINTENANCE AND REPAIR - SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. T-5-80 R STANDARD PERFORMANCE FOR PUMP MODEL 53H2−B Based on 70_ F (21_ C) clear water at sea level with minimum suction lift.
  • Page 24 OM−01322 50 SERIES SECTION DRAWING PARTS PAGE Figure 1. Pump Model 53H2−B PAGE E − 2 MAINTENANCE & REPAIR...
  • Page 25 50 SERIES OM−01322 PARTS LIST Pump Model 53H2−B (From S/N 806819 Up) ITEM PART NAME PART MAT’L ITEM PART NAME PART MAT’L NUMBER CODE NUMBER CODE PUMP CASING 2201 10010 HEX NUT 15991 SLINGER RING 3209 19120 IMPELLER 2203 10010...
  • Page 26 OM−01322 50 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. 6. Vent the pump slowly and cau- Follow the instructions on all tags, label and de- tiously.
  • Page 27 50 SERIES OM−01322 Shaft and Bearing Removal and Disassembly Turn Counterclockwise When the pump is properly operated and main- tained, the shaft and bearings should not require disassembly. Disassemble the shaft and bearings only when there is evidence of wear or damage.
  • Page 28 OM−01322 50 SERIES cleaning solvent. Inspect the parts for wear or dam- age and replace as necessary. To prevent damage during removal from the shaft, it is recommended that bearings be cleaned and inspected in place. It is Most cleaning solvents are toxic and strongly recommended that the bearings flammable.
  • Page 29 50 SERIES OM−01322 NOTE Position the outboard bearing (12) on the shaft as indicated by the following illustration. Use caution when handling hot bear- ings to prevent burns. BALL LOADING BALL LOADING GROOVE POSITIONED GROOVE POSITIONED TOWARD IMPELLER AWAY FROM IMPELLER...
  • Page 30 OM−01322 50 SERIES Pump Casing, Wear Ring and Seal gency, carefully wash all metallic parts in fresh Installation cleaning solvent and allow to dry thoroughly. (Figures 1 and 4) Handle the seal parts with extreme care to prevent damage. Be careful not to contaminate precision Clean the seal cavity and shaft with a cloth soaked finished faces;...
  • Page 31 50 SERIES OM−01322 ROTATING PUMP LUBRICATION ELEMENTS CHANNEL CASING IMPELLER SHIMS SPACER SLEEVE STATIONARY SPRING IMPELLER SEATS WASHERS SHAFT IMPELLER SPRING PACKING RINGS Figure 4. GS1250 Seal Assembly the hole from the inside of the seal liner after drill- ing.
  • Page 32 OM−01322 50 SERIES Subassemble the outboard stationary seat, pack- casing bore or binding and/or excessive ing ring and spring washer. Press this subassem- wear will result. bly into the seal liner. Install the outboard rotating element with the Impeller Installation chamfered side facing the impeller end of the shaft.
  • Page 33 50 SERIES OM−01322 Be sure the pump and power source have been more frequently if the pump is operated continu- properly lubricated, see LUBRICATION. ously or installed in an environment with rapid tem- perature change. Refer to OPERATION, Section C, before putting the pump back into service.
  • Page 34 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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53h2-b

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