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- Page 1 OM-07382-01 May 27, 2021 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST SUBMERSIBLE PUMP MODEL SFEV3C GORMAN‐RUPP PUMPS www.grpumps.com 2021 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 LISTS: Pump Model Assembly ..........PAGE E - 3 Motor Assemblies .
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Page 5: Introduction
SF SERIES OM-07382 INTRODUCTION Thank You for purchasing a Gorman‐Rupp SF Se Gorman‐Rupp of Canada Limited ries Pump. Read this manual carefully to learn 70 Burwell Road how to safely install and operate your pump. Fail St. Thomas, Ontario N5P 3R7 ure to do so could result in personal injury or dam... -
Page 6: Safety - Section A
SF SERIES OM-07382 SAFETY - SECTION A This information applies to the SF Se ries submersible pump indicated on the front cover of this manual. The electrical power used to operate In addition to this manual, see the sepa this pump is high enough to cause inju rate literature covering the control box, ry or death. - Page 7 OM-07382 SF SERIES to the incoming power lines. The pump motor is designed to operate through a Gorman‐Rupp approved control box which provides overload protection and power control; otherwise, the pump The electrical power used to operate warranty will be voided. Make certain this pump is high enough to cause inju...
- Page 8 SF SERIES OM-07382 Do not remove plates, covers, gauges, After the pump has been installed, make pipe plugs, or fittings from an over certain that the pump and all piping or heated pump. Vapor pressure within the pump can cause parts being disen hose connections are secure before op...
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Page 9: Installation - Section B
SF SERIES OM-07382 INSTALLATION - SECTION B Review all SAFETY information in Section A. match the ratings on the control box and in coming power. Since pump installations are seldom identical, this e. Carefully read all tags, decals, and markings section is intended only to summarize general rec... -
Page 10: Lifting
SF SERIES See Table B-1 for motor specifications. TABLE B-1. PUMP MOTOR SPECIFICATIONS MODEL VOLTAGE/ SIZE H.P . MOTOR LOCKED PHASE LOAD ROTOR AMPS AMPS SFEV3C 230/1 3” 1720 13.3 19.3 SFEV3C 208/3 3” 1750 8.62 55.3 SFEV3C 230‐460‐575/3 3”... -
Page 11: Electrical Connections
SF SERIES OM-07382 Either hose or rigid pipe may be used to make dis TABLE B-2. MOTOR VOLTAGE LIMITS charge connections. The discharge line must be NOMINAL PHASE MINIMUM MAXIMUM independently supported to avoid vibration and VOLTAGE VOLTAGE VOLTAGE strain on the pump. For maximum pumping capac ity, keep the line as short and straight as possible. -
Page 12: Control Box Connections
OM-07382 SF SERIES lead (s). Connect the second test lead to an unin sulated point on the pump body. The test circuit should close. If the test circuit does not close, there is a defect in the cable or motor which must be corrected. Figure B-1. -
Page 13: Liquid Level Devices
SF SERIES OM-07382 are different for filling and dewatering func tions. Be sure to follow the instructions in cluded with the option before making con nections. The thermal protection contacts will auto matically reclose when the motor cools to Diaphragm Type: two fixed‐position sen the established safe operating tempera... -
Page 14: Operation - Section C
SF SERIES OM-07382 OPERATION - SECTION C GENERAL INFORMATION pendent upon the quality and performance of the electrical controls, the pump warran Review all SAFETY information in Section A. ty is valid only when controls have been specified or provided by The Gorman‐ Rupp Company. - Page 15 OM-07382 SF SERIES SFEV3C 230/460/575V 3P PERFORMANCE CURVE PAGE C - 2 OPERATION...
- Page 16 SF SERIES OM-07382 SFEV3C 208V 3P PERFORMANCE CURVE OPERATION PAGE C - 3...
- Page 17 OM-07382 SF SERIES SFEV3C 230V 1P PERFORMANCE CURVE PAGE C - 4 OPERATION...
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Page 18: Control Box
SF SERIES OM-07382 Control Box 2. Lock out the power to the control panel to ensure that the pump will Control boxes are available as optional equipment remain inoperative. from the factory. The control boxes contain con 3. Allow the pump to completely cool trols for starting and stopping the pump, and pro... -
Page 19: Impeller Rotation
OM-07382 SF SERIES burns and injuries. If overheating of the ry or death. Make certain that incoming pump occurs: power is off and locked out before inter changing motor leads. 1. Stop the pump immediately. 2. Ventilate the area. 3. Allow the pump to completely cool. 4. -
Page 20: Cold Weather Preservation
SF SERIES OM-07382 between starts, it will over‐heat, resulting in bration while the pump is running. If noise damage to the motor windings. or vibration is excessive, stop operation and refer to the troubleshooting chart in the Stopping maintenance and repair manual. The suction inlet or impeller may become clogged Follow the instructions accompanying the control with debris. -
Page 21: Lubrication
OM-07382 SF SERIES could damage gaskets, O‐rings or heat Draining Oil the oil in the seal housing above critical temperatures, causing the pump to rup Refer to the Parts List in Maintenance and Repair ture or explode. - Section E for drain plug location. The pump will not freeze as long as the casing is Lay the pump on its side with one of the pipe plugs submerged in liquid. -
Page 22: Troubleshooting - Section D
SF SERIES OM-07382 TROUBLESHOOTING - SECTION D Review all SAFETY information in Section A. NOTE Many of the probable remedies listed in the TROU BLESHOOTING CHART require use of electrical test instruments; for specific procedures, see ELECTRICAL TESTING at the end of the chart. TROUBLESHOOTING CHART TROUBLE POSSIBLE CAUSE... - Page 23 OM-07382 SF SERIES TROUBLESHOOTING CHART (cont'd) TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Discharge head too high. Reduce discharge head or install MOTOR RUNS, BUT staging adaptor and additional PUMP FAILS TO DELIVER RATED pump. DISCHARGE. Low or incorrect voltage. Measure control box voltage, both when pump is running and when shut off.
- Page 24 SF SERIES OM-07382 ELECTRICAL TESTING 3. The pump submerged and running under full load. Make the electrical checks which follow to deter The voltage measured under each condition mine if pump malfunctions are being caused by must be the same. problems in the motor or in the motor cable.
- Page 25 OM-07382 SF SERIES motor cable green/yellow ground lead. Touch and 1 megohm, insulation is acceptable but the other test lead to each of the motor cable should be rechecked regularly. If resistance leads in turn. Note the readings. reads less than 1 megohm, insulation should be checked more closely and frequently.
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Page 26: Pump Maintenance And Repair - Section E
SF SERIES OM-07382 PUMP MAINTENANCE AND REPAIR - SECTION E GENERAL INFORMATION The maintenance and repair instructions in this manual are keyed to the illustrations, Figures E-1 and E-2, and the corresponding parts lists. Review all SAFETY information in Section A. Select a suitable location, preferably indoors, to perform required maintenance. - Page 27 OM-07382 SF SERIES ILLUSTRATION PARTS PAGE Figure E-1. Pump Model Assembly PAGE E - 2 MAINTENANCE AND REPAIR...
- Page 28 SF SERIES OM-07382 Pump Model Assembly Parts List (From S/N 1774853 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 NAME PART ITEM PART NAME...
- Page 29 OM-07382 SF SERIES ILLUSTRATION Figure E-2. Motor Assemblies PAGE E - 4 MAINTENANCE AND REPAIR...
- Page 30 SF SERIES OM-07382 Motor Assemblies Parts List ITEM PART PART NAME NUMBER MOTOR SUB-ASSEMBLY -230/1 47111-852 --MOTOR HOUSING 38311-065 10000 --STATOR 47113-105 --TERMINAL HOUSING STUD MC1042 17000 --VOLTAGE TAG 38816-098 --ROTATION DECAL 38815-027 -208‐230/3 47111-829 --MOTOR HOUSING 38311-065 10000 --STATOR 47113-089 --TERMINAL HOUSING STUD MC1042 17000...
- Page 31 All O‐ wise serious personal injury or death rings must be replaced if disturbed. could result. Use Only Genuine Gorman-Rupp re If this pump is used to handle sewage, placement parts. Failure to do so may cre take necessary precautions during ate a hazard and damage the pump or di...
- Page 32 SF SERIES OM-07382 pump end components horizontally on a flat sur NOTE face for further disassembly. Chock the pump to When appropriate recycling facilities are available, prevent rolling when positioned horizontally. the user should recycle components and fluids when doing any routine maintenance / repairs and Remove the O‐ring (15) from the outer shoulder of also at the end of the pump’s useful life.
- Page 33 OM-07382 SF SERIES Remove the impeller washer (3). Remove the metal Remove the seal retaining ring (10) using snap ring rod from between the vanes of the impeller. pliers. Use caution when removing the retaining ring; tension on the seal spring will be released. To remove the impeller, use two thin‐bladed screw...
- Page 34 SF SERIES OM-07382 Cleaning and Inspection of Pump Parts burrs with a fine file or hand honing stone to restore original contours. If the shaft is bent or severely (Figures E-1 and E-2) damaged, the rotor and shaft must be replaced as an assembly (see MOTOR DISASSEMBLY).
- Page 35 OM-07382 SF SERIES those in the motor housing and press the inter mediate into the motor housing until fully seated. Apply “Never‐Seez” or equivalent compound on the threads of the capscrews (12) and secure the The seal assemblies are not designed for intermediate to the motor housing with the hard...
- Page 36 SF SERIES OM-07382 O.D. of the stationary seat O‐ring. Keep the sealing Slide the seal rotating portion onto the lubricated face dry. shaft with the seal face down. Apply firm, steady pressure on the bellows retainer until it slides down Position the stationary seat and O‐ring in the seal the shaft and the seal faces contact.
- Page 37 OM-07382 SF SERIES (7) with the hardware (8 and 9). Torque the caps Hoisting Bail Removal crews to 47 ft. lbs. (6,5 m. kg.). (Figure E-1) The hoisting bail (13) must be removed in order to Final Assembly remove the terminal housing assembly (10). To re move the hoisting bail, disengage the hardware (8 and 12) and separate the bail from the motor hous...
- Page 38 SF SERIES OM-07382 until the female terminal (14) can be accessed. Pull If replacement is required, use a bearing puller to the female terminal off the male terminal (15) and remove the upper and lower bearings from the ro remove the intermediate, rotor shaft and bearings tor shaft.
- Page 39 OM-07382 SF SERIES turns during removal from the motor hous ing. After the stator has been removed, wrap it in clean, Most cleaning solvents are toxic and dry rags or other suitable material until reassembly. flammable. Use them only in a well ven The stator must be kept clean and dry.
- Page 40 SF SERIES OM-07382 the stator to be installed; when heating the motor be replaced any time the shaft and rotor housing, make sure that the stator is clear to avoid assembly is removed. a fire hazard, or damage to the windings. Apply The bearings may be heated to ease installation.
- Page 41 OM-07382 SF SERIES sealing surfaces for burrs, nicks and pits which Terminal Housing Assembly Installation could cause a poor seal. Repair or replace as re (Figure E-1) quire. The electrical power used to operate this pump is high enough to cause inju ry or death.
- Page 42 SF SERIES OM-07382 spective housings. Check to ensure that any wire Hoisting Bail Installation connectors installed on the stator leads are tight (Figure E-1) and secured with heat shrink tubing. If the hoisting bail (13) was removed in order to re move the terminal housing assembly (10) position The plastic housings on the ends of the power and the bail over the motor housing so the holes for the...
- Page 43 OM-07382 SF SERIES See Figure E-4 and connect the vacuum pump or Seal and Motor Cavity Testing compressor/venturi system directly to the pump at the hole for the seal cavity drain plug (6, Figure Connect the vacuum pump or compressor/venturi E-2).
- Page 44 SF SERIES OM-07382 Remove the plug, and screw a short 1/4 inch NPT LUBRICATION nipple into the hole. Plug the open end of the nipple with your finger. Tip the pump and drain off a small Seal Cavity amount of oil into a transparent cup, and stand the pump up again.
- Page 45 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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