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OM-07445-01 February 16, 2022 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST SUBMERSIBLE PUMP MODEL SFSC6A GORMAN‐RUPP PUMPS www.grpumps.com 2022 Gorman‐Rupp Pumps Printed in U.S.A.
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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:...
SF SERIES OM-07445 INTRODUCTION Thank You for purchasing a Gorman‐Rupp pump. HAZARD AND INSTRUCTION Read this manual carefully to learn how to safely DEFINITIONS install and operate your pump. Failure to do so could result in personal injury or damage to the The following are used to alert maintenance per...
SF SERIES OM-07445 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.
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OM-07445 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...
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SF SERIES OM-07445 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...
SF SERIES OM-07445 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...
VOLTAGE/ SIZE H.P . MOTOR LOCKED PHASE LOAD ROTOR AMPS AMPS SFSC6A 230‐460‐575/3 6” 30.0 1750 73.2/36.6/29.3 492/246/197 Lifting fully seated in the baseplate. Pump unit weights will vary depending on the To install a pump configured for a guide rail/guide mounting and drive provided.
SF SERIES OM-07445 ity, keep the line as short and straight as possible. nections are tight. If necessary, support the cable Elbows and fittings used in a discharge line in weight to prevent excessive strain on cable clamps crease friction losses; minimize their use. and cable.
OM-07445 SF SERIES This pump is shipped completely wired for the volt Control leads P1 and P2 provide the motor with age shown on the nameplate and is ready for op thermal protection. Control leads W1 and W2 pro eration through an approved control box. vide the motor with moisture protection.
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SF SERIES OM-07445 Liquid level devices must be positioned far Bulb (Float) Type: a bulb raises or lowers enough to allow 6 minutes between starts. (floats) with the liquid level, thus activating If the pump motor cycles more than 10 an enclosed miniature switch.
SF SERIES OM-07445 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.
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OM-07445 SF SERIES SFSC6A 230/460/575V 3P PERFORMANCE CURVE PAGE C - 2 OPERATION...
SF SERIES OM-07445 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...
OM-07445 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.
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SF SERIES OM-07445 between starts, it will over‐heat, resulting in damage to the motor windings. Stopping To avoid serious damage to the pump, check for unusual noises or excessive vi bration while the pump is running. If noise Follow the instructions accompanying the control or vibration is excessive, stop operation box for stopping the pump.
OM-07445 SF SERIES COLD WEATHER PRESERVATION first two weeks of operation, and every month thereafter. Before installing or removing the lubrication plugs, always clean the area around the plugs to prevent contamination. Do not attempt to thaw the pump by us Draining Oil ing a torch or other source of flame.
SF SERIES OM-07445 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...
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OM-07445 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.
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SF SERIES OM-07445 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.
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OM-07445 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.
SF SERIES OM-07445 PUMP MAINTENANCE AND REPAIR - SECTION E GENERAL INFORMATION Review all SAFETY information in Section A. The maintenance and repair instructions in this manual are keyed to the illustrations, Figures E-1 and E-2, and the corresponding parts lists. Select a suitable location, preferably indoors, to Death or serious personal injury and perform required maintenance.
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OM-07445 SF SERIES ILLUSTRATION PARTS PAGE Figure E-1. SFSC6A Pump Model Assembly PAGE E - 2 MAINTENANCE AND REPAIR...
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SF SERIES OM-07445 SFSC6A Pump Model Assembly Parts List (From S/N 1771412 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...
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OM-07445 SF SERIES ILLUSTRATION Figure E-2. Motor Assemblies PAGE E - 4 MAINTENANCE AND REPAIR...
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SF SERIES OM-07445 Motor Assemblies Parts List ITEM PART PART NAME NUMBER MOTOR SUBASSEMBLY -230/3 47111-981 --MOTOR HOUSING 38311-215 10000 --STATOR 47113-108 --TERMINAL HOUSING STUD MC1042 17000 --VOLTAGE TAG 38816-259 --ROTATION DECAL 38815-027 -460/3 47111-982 --MOTOR HOUSING 38311-215 10000 --STATOR 47113-108 --TERMINAL HOUSING STUD MC1042 17000...
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OM-07445 SF SERIES PUMP AND SEAL DISASSEMBLY AND the pump. Lift the pump or component only as high as necessary and keep per REASSEMBLY sonnel away from suspended objects. Review all SAFETY information in Section A. This pump requires little service due to its rugged, minimum‐maintenance design.
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SF SERIES OM-07445 was faulty or questionable, the cause must be de Pump Casing and Wear Plate Removal termined and corrected before reassembly. All O‐ (Figure E-1) rings must be replaced if disturbed. Position the pump assembly on a flat surface and use the lifting bail and lifting device to support the pump in a vertical position.
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OM-07445 SF SERIES condition which could indicate lower seal failure or Remove the seal sleeve O‐ring (21) from the rotor poor O‐ring seal. shaft. If no further disassembly is required, proceed to Impeller Removal the appropriate areas in PUMP END REASSEMB (Figure E-1) Upper Seal Removal Wedge a soft metal rod between the impeller vanes...
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SF SERIES OM-07445 reassemble the pump end components at this time. flammable. Use them only in a well ven tilated area free from excessive heat, sparks, and flame. Read and follow all precautions printed on solvent contain PUMP END REASSEMBLY ers.
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OM-07445 SF SERIES ROTOR STATIONARY SHAFT SEAL SEAT ROTATING O‐RING ELEMENT SPRING BELLOWS AND RETAINER ASSY SPRING CENTERING WASHER SEAL RETAINING RING STATIONARY SEAL PLATE SEAL SEAT O‐RING ROTATING BELLOWS AND ELEMENT RETAINER ASSY SPRING SHIM SET SPRING RETAINER IMPELLER Figure E-3.
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SF SERIES OM-07445 mediate into the motor housing until fully seated. Position the seal plate on a clean flat surface with Apply “Never‐Seez” or equivalent compound on the impeller side up. the threads of the capscrews (12) and secure the Unpack the seal stationary seat and O‐ring.
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OM-07445 SF SERIES Slide the assembled shaft sleeve and rotating por wear plate to the casing with the hardware (7 and tion of the seal and onto the rotor shaft until the pol ished faces contact. Continue to push the sleeve Before installing the pump casing, loosen the jam through the seal until it is fully seated against the nuts (17) and unscrew the capscrews (8) from the...
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SF SERIES OM-07445 hardware. If the discharge elbow was removed, re Terminal Housing Assembly Removal place the gasket and secure the discharge elbow (Figure E-1) to the pump casing with the previously remove hardware and reconnect the discharge piping. The terminal housing assembly (15) may be re placed without disassembling the motor or pump Use a suitable lifting device to reposition the pump end components.
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OM-07445 SF SERIES Remove the snap ring (4) from the groove in the in Stator Removal termediate and pull the assembled rotor shaft and (Figure E-2) bearings out of the intermediate. Stator replacement requires specialized To prevent damage during removal from equipment, experience with electric mo...
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SF SERIES OM-07445 MOTOR REASSEMBLY precautions printed on solvent contain ers. After the motor housing is thoroughly cleaned, po sition it on a flat surface and secure it in an inverted position. Do not unwrap the stator until the motor housing has been prepared for stator installation.
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OM-07445 SF SERIES oil and the container must be absolutely clean. If terminal housing opening. Carefully lower the sta the oil has been previously used, it must be thor tor into the motor housing until fully seated against oughly filtered. the housing shoulder.
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SF SERIES OM-07445 precautions printed on solvent contain vices of a qualified electrician to make ers. electrical connections. Position the intermediate with the impeller end Secure the pump in upright position with the hoist down on some wood blocks tall enough to allow for ing bail and terminal housing assembly removed.
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OM-07445 SF SERIES the terminal housing is fully seated in the motor VACUUM TESTING housing. After installing the motor housing, perform the vac To ensure the water‐tight integrity of the pump, the uum check described below to ensure the water‐ motor and seal cavities must be vacuum tested any tight integrity of the pump.
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SF SERIES OM-07445 Seal and Motor Cavity Testing between the two cavities is the same as the differ ential between the vacuum readings shown in the Connect the vacuum pump or compressor/venturi table. system to the pump as shown in Figure E-4. To vacuum test the motor cavity, the terminal hous...
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OM-07445 SF SERIES Seal Cavity in this section for instructions and reaches the bottom of the oil drain plug hole with troubleshooting tips. If the oil is clear, remove the approximately 110 ounces (3,3 liters) of oil. nipple, top off the seal cavity with oil, and reinstall the level plug.
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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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