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

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OM-07264-07
February 14, 2020
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
S SERIES
SUBMERSIBLE PUMP
MODEL
S3A1 230V 1P
GORMAN‐RUPP PUMPS
www.grpumps.com
e
2020 Gorman‐Rupp Pumps
Printed in U.S.A.

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  • Page 1 OM-07264-07 February 14, 2020 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST S SERIES SUBMERSIBLE PUMP MODEL S3A1 230V 1P GORMAN‐RUPP PUMPS www.grpumps.com 2020 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:...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........PAGE I - 1 SAFETY ‐...
  • Page 4 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR ‐ SECTION E ....PAGE E - 1 STANDARD PERFORMANCE CURVE ........PAGE E - 1 PARTS LISTS: Pump Model...

  • Page 5: Introduction

    S SERIES PUMPS OM-07264 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...

  • Page 6: Safety - Section A

    OM-07264 S SERIES PUMPS SAFETY - SECTION A This information applies to the S Series submersible motor driven pumps and control boxes. Before connecting any cable to the con­ Because pump installations are seldom trol box, be sure to ground the control identical, this manual cannot possibly box.
  • Page 7 S SERIES PUMPS OM-07264 position and locked out, or that the pow­ and the pump or components will not be er supply to the control box has been damaged when lifting. Do not attempt to otherwise cut off and locked out, before...
  • Page 8 OM-07264 S SERIES PUMPS low the pump to completely cool before lift it, make certain that they are posi­ servicing. tioned so as not to damage the pump, and so that the load will be balanced. Do not attempt to lift the pump by the motor power cable or the piping.

  • Page 9: Installation - Section B

    Discharge Size Series LUBRICATION PREINSTALLATION INSPECTION S series pumps are lubricated in one of the follow­ ing methods. The pump assembly was inspected and tested be­ fore shipment from the factory. Before installation, 1. Some pumps utilize two lubrication cavities.

  • Page 10: Pump Installation

    OM-07264 S SERIES PUMPS (see LUBRICATION in the MAINTENANCE AND Table B‐2 for oil capacities and positions for filling REPAIR MANUAL). An additional quart (0,9 liter) the seal cavity in each pump. Motor cavities requir­ of oil is provided to “top off” the oil level in the pump ing lubrication should always be positioned verti­...

  • Page 11: Lifting

    OM-07264 S SERIES PUMPS mergence depth is 65 feet. NOTE When appropriate recycling facilities are available, the user should recycle components and fluids Lifting when doing any routine maintenance / repairs and also at the end of the pump’s useful life. All other Pump unit weights will vary depending on the components and fluids shall be disposed of ac­...

  • Page 12: Piping

    It is recommended that a check valve or throttling valve be installed in the discharge line to control si­ S Series pumps are provided with a suction strain­ phoning or back flow when the pump is shut off. er to prevent large solids from clogging the impel­...

  • Page 13: Control Box Installation

    OM-07264 S SERIES PUMPS or death to personnel can result from motor. If the alternate voltage is utilized, the control box must be replaced with another box designed any alteration to the cable. for the appropriate voltage. Alternate voltage con­...

  • Page 14: Grounding Methods

    OM-07264 S SERIES PUMPS ry or death. Obtain the services of a b. Next, subtract the motor cable voltage drop (see Table 4, Pump Power Cable Specifica­ qualified electrician to make all electri­ tions). cal connections. Make certain that the pump and enclosure are properly c.

  • Page 15: Pump Power Cable Connections

    OM-07264 S SERIES PUMPS a) PLATE ELECTRODE b) DRIVEN ELECTRODE c) BURIED ELECTRODE SOIL SOIL SOIL 8 FEET ROCK 1/4 INCH (6,4 MM) (2,4 M) 3/4 INCH (19,1 STEEL PLATE 2 SQ. MM) NOMINAL FEET (1858,1 SQ. CM) 3/4 INCH (19,1 MM)

  • Page 16: Control Box Specifications

    OM-07264 S SERIES PUMPS Table B‐4. Pump Power Cable Specifications Voltage Resistance Rating Drop Cable Conductor (ohms) at (See per 100 ft. A.W.G O.D. Dia. 25_C (77_F) Note (30,5m) at Pump Voltage/ Cable Inches Inches Cable per 1000 ft. Below) Max.
  • Page 17 OM-07264 S SERIES PUMPS Diaphragm Type: two fixed‐position sen­ sors (upper and lower) each contain a dia­ phragm which flexes with changes in liquid level, thus activating an enclosed miniature Liquid level devices must be positioned far switch. enough apart to allow 10 minutes between Bulb (Float) Type: a bulb raises or lowers starts.

  • Page 18: Wiring Diagrams

    OM-07264 S SERIES PUMPS cluded with the option before making wir­ ing connections. WIRING DIAGRAMS The internal wiring of the sensing devices Refer to the appropriate wiring diagram in the liter­ are different for filling and dewatering func­ ature accompanying the control box when making tions.

  • Page 19: Operation - Section C

    OM-07264 S SERIES PUMPS OPERATION - SECTION C Review all SAFETY information in Section A. Follow the instructions on all tags, labels and decals attached to the pump. Never operate this pump unless there is liquid in the pump casing. The pump will not prime when dry.

  • Page 20: Operation

    OM-07264 S SERIES PUMPS Never introduce air or steam pressure into the OPERATION pump casing or piping to remove a blockage. This could result in personal injury or damage to the equipment. If backflushing is absolutely neces­ Leakage sary, liquid pressure must be limited to 50% of the maximum permissible operating pressure shown No leakage should be visible at pump mating sur­...

  • Page 21: Bearing Temperature Check

    OM-07264 S SERIES PUMPS solids by flushing with a hose. Operate the pump normal for bearings, and they can operate safely to for approximately one minute; this will remove any at least 180 F (82 remaining liquid that could freeze the pump rotat­...

  • Page 22: Troubleshooting - Section D

    S SERIES PUMPS OM-07264 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 23 OM-07264 S SERIES PUMPS TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Pump speed too slow. Check driver output; consult the FAILS TO DELIVER operation manual. RATED FLOW OR Impeller clogged. Free impeller of debris. PRESSURE (cont.) Suction lift too high.

  • Page 24: Preventive Maintenance

    S SERIES PUMPS OM-07264 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 25 S SERIES PUMPS OM-07264 PUMP MAINTENANCE AND REPAIR ‐ SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. STANDARD PERFORMANCES FOR PUMP MODEL S3A1 230V 1P Based on 70 F (21 C) clear water at sea level Contact the Gorman‐Rupp Company to verify per­...
  • Page 26 OM-07264 S SERIES PUMPS ILLUSTRATION PARTS PAGE Figure 2. Pump Model S3A1 230V 1P PAGE E - 2 MAINTENANCE & REPAIR...
  • Page 27 S SERIES PUMPS OM-07264 PARTS LIST Pump Model S3A1 230V 1P 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 NAME...
  • Page 28 OM-07264 S SERIES PUMPS ILLUSTRATION Figure 3. Terminal Housing & Cable Assembly PAGE E - 4 MAINTENANCE & REPAIR...
  • Page 29 S SERIES PUMPS OM-07264 PARTS LIST Terminal Housing & Cable Assembly ITEM PART PART NAME NUMBER TERMINAL HOUSING 38381-230 13040 RD HD MACH SCREW X#10-02 15991 T TYPE LK WASHER AK#10 15991 TERMINAL SK-E 26U 27214-243 TERMINAL SK-C 36U S1836...
  • Page 30 S SERIES PUMPS OM-07264 PUMP END DISASSEMBLY cable are wrapped around the pump to lift it, make certain that they are posi­ tioned so as not to damage the pump, Review all SAFETY information in Section A. and so that the load will be balanced.
  • Page 31 OM-07264 S SERIES PUMPS Draining Oil From Motor Cavity NOTE When appropriate recycling facilities are available, (Figure 1) the user should recycle components and fluids when doing any routine maintenance / repairs and If motor problems are suspected, remove the mo­...
  • Page 32 S SERIES PUMPS OM-07264 Remove the impeller adjusting shims (54). Tie and Lubricate the exposed portions of the sleeve and tag the shims or measure and record their thick­ work oil under both bellows assemblies. Pull the ness for ease of reassembly.
  • Page 33 OM-07264 S SERIES PUMPS rings and gaskets, and clean the sealing surfaces The shaft seal assembly should not be reused be­ of dirt or gasket material. Be careful not to scratch cause wear patterns on the finished faces cannot gasket surfaces.
  • Page 34 S SERIES PUMPS OM-07264 element may not stay in the bellows retainer when turned upside down, place a small amount of grease at equal spaces on the back of the element and position it in the bellows retainer. The grease...
  • Page 35 OM-07264 S SERIES PUMPS the O‐ring is properly positioned and has not been NOTE cut. Remove the tissue and wipe the face. The clearance between the face of the impeller and the suction head can only be measured after the im­...
  • Page 36 S SERIES PUMPS OM-07264 Strainer Installation be determined and corrected before reassembly. Replace any parts as required. (Figure 1) Terminal Housing And Power Cable Inspect the strainer screen (42) for cracks, distor­ Removal And Disassembly tion, erosion or broken welds, and replace it if de­...
  • Page 37 OM-07264 S SERIES PUMPS Terminal Housing And Power Cable Reassemb­ Use caution to prevent the rotor (33) from falling on ly). the stator windings. Carefully pull the rotor and as­ sembled bearings (9 and 55) from the motor hous­ ing. Reach into the motor housing and remove the To disconnect the power cable (7) from the termi­...
  • Page 38 S SERIES PUMPS OM-07264 Stator Removal one of The Gorman‐Rupp Authorized Sub­ mersible Repair Centers or The Gorman‐ (Figure 1) Rupp factory, if defective. Do not remove the stator (32) unless it is defective Relief Valve (open windings, insulation resistance low, or stator (Figure 1) core damaged).
  • Page 39 OM-07264 S SERIES PUMPS result in premature leakage or reduce pump per­ NOTE formance. It is strongly recommended that new Remove any drops of varnish from the ends of the gaskets and shaft seal assemblies be used during stator before installation to ensure proper stack‐up reassembly (see the parts lists for numbers).
  • Page 40 S SERIES PUMPS OM-07264 Bearing Installation After the bearings have been installed and allowed to cool, check to ensure that they have not moved (Figure 1) out of position in shrinking. If movement has oc­ curred, use a suitably sized sleeve and a press to reposition the bearings.
  • Page 41 OM-07264 S SERIES PUMPS mediate over the bearing until it seats squarely on Use oil to lightly lubricate the outside of the pump the shoulder of the motor housing. Use caution not power cable (7), and the bore of the terminal hous­...
  • Page 42 S SERIES PUMPS OM-07264 terminal plate must be replaced. If the bonding ma­ sive (see the Parts List Manual for the part terial has been noticeably compressed, it should number) or potting compound for sealing be supplemented with two gaskets contained in terminal housing connections.
  • Page 43 OM-07264 S SERIES PUMPS 1 YELLOW - CONNECT TERMINAL TO GROUND INSIDE TERMINAL HOUSING WHITE (T1) 2 GREEN - TOGETHER IN ONE TERMINAL. CONNECT TERMINAL TO GROUND INSIDE TERMINAL HOUSING (T3) BLACK (T2) Figure 4. Terminal Housing Wiring Connections Sealing Terminal Plate Connections terminals and onto the terminal plate.
  • Page 44 S SERIES PUMPS OM-07264 When potting has been completed, leave the ter­ (Figure 1) minal plate assembly undisturbed until the potting Coat the threads of the motor housing studs (20) material has cured. Complete curing usually takes with `Never‐Seez' or equivalent compound, and about 24 hours.
  • Page 45 OM-07264 S SERIES PUMPS Drain all of the oil from both the seal and motor the differential between the readings shown in the cavities before performing the test. Oil within the table. motor cavity will be drawn into the system, result­...
  • Page 46 S SERIES PUMPS OM-07264 To fill the seal cavity, remove the pipe plug (6) and cating a dry (overhauled) pump. See Table 3 for lu­ add the recommended grade of submersible bricant specifications. pump oil. Apply `Loctite Pipe Sealant With Teflon The grade of lubricant used is critical to the opera­...
  • Page 47 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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S3a1 230v 1p

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