GORMAN-RUPP PUMPS SF8B Installation, Operation, And Maintenance Manual With Parts List

Submersible pump

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OM-06549-02
April 26, 2016
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
SUBMERSIBLE PUMP
MODEL
SF8B
GORMAN‐RUPP PUMPS
www.grpumps.com
e
2016 Gorman‐Rupp Pumps
Printed in U.S.A.

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Summary of Contents for GORMAN-RUPP PUMPS SF8B

  • Page 1 OM-06549-02 April 26, 2016 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST SUBMERSIBLE PUMP MODEL SF8B GORMAN‐RUPP PUMPS www.grpumps.com 2016 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) PARTS LISTS: Pump Model Assembly ..........PAGE E - 3 Motor Assemblies .
  • Page 5: Introduction

    SF SERIES OM-06549 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...
  • Page 6: Safety - Section A

    SF SERIES OM-06549 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-06549 SF SERIES in this warning could result in injury or death to personnel. The electrical power used to operate this pump is high enough to cause inju­ ry or death. Make certain that the control Death or serious personal injury and handle on the control box is in the OFF damage to the pump or components position and locked out, or that the pow­...
  • Page 8 SF SERIES OM-06549 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...
  • Page 9: Installation - Section B

    SF SERIES OM-06549 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

    MODEL VOLTAGE/ SIZE H.P . MOTOR LOCKED PHASE LOAD ROTOR AMPS AMPS SF8B 460/575 8” 75.0 1750 86.0/69.0 542.0/434.0 PELLER ROTATION, SECTION C. Lifting This pump may be mounted on guide rails or cables for use with optional discharge elbow/base­...
  • Page 11: Piping

    SF SERIES OM-06549 After installation in the wet well, reel in any slack in Field Wiring Connections (Incoming Power) the cables so that they are not dragged into the Field wiring is not provided with this pump, and pump suction. must be supplied by the user.
  • Page 12: Liquid Level Devices

    OM-06549 SF SERIES This pump is shipped completely wired for the volt­ age shown on the nameplate and is ready for op­ eration through an approved control box. Ground the control box in accordance with the in­ structions accompanying it. Figure B-2.
  • Page 13 SF SERIES OM-06549 Other types of liquid level devices may also be enough to allow 6 minutes between starts. used. Consult the factory for the liquid level device If the pump motor cycles more than 10 best suited for your application. starts per hour, it will over‐heat, resulting in damage to the motor windings or control box components.
  • Page 14: Operation - Section C

    SF SERIES OM-06549 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-06549 SF SERIES SF8B 460/575V 3P PERFORMANCE CURVE PAGE C - 2 OPERATION...
  • Page 16: Control Box

    SF SERIES OM-06549 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 17: Impeller Rotation

    OM-06549 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 18 SF SERIES OM-06549 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.
  • Page 19: Cold Weather Preservation

    OM-06549 SF SERIES Check the oil level(s) as indicated in the following On a new pump, check the oil level in the seal cav­ LUBRICATION section. ity before initial startup, and drain and replace the oil after the first 200 hours of operation. Following this, check the oil level in the seal cavity after the COLD WEATHER PRESERVATION first two weeks of operation, and every month...
  • Page 20 SF SERIES OM-06549 in Draining Oil. Add premium quality submersible pump oil through the fill plug hole until the oil is lev­ el with the bottom of the plug hole. Install and tighten the fill plug. OPERATION PAGE C - 7...
  • Page 21: Troubleshooting - Section D

    SF SERIES OM-06549 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 22 OM-06549 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 23 SF SERIES OM-06549 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 24 OM-06549 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.
  • Page 25: Pump Maintenance And Repair - Section E

    SF SERIES OM-06549 PUMP MAINTENANCE AND REPAIR - SECTION E GENERAL INFORMATION Lifting Review all SAFETY information in Section A. Death or serious personal injury and damage to the pump or components can occur if proper lifting procedures are not observed. Make certain that hoists, chains, slings or cables are in good working condition and of suffi­...
  • Page 26 OM-06549 SF SERIES ILLUSTRATION PARTS PAGE Figure E-1. SF8B Pump Model Assembly PAGE E - 2 MAINTENANCE AND REPAIR...
  • Page 27 SF SERIES OM-06549 SF8B Pump Model Assembly Parts List (From S/N 1612399 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...
  • Page 28 OM-06549 SF SERIES ILLUSTRATION Figure E-2. Motor Assemblies PAGE E - 4 MAINTENANCE AND REPAIR...
  • Page 29 SF SERIES OM-06549 Motor Assemblies Parts List ITEM PART PART NAME NUMBER MOTOR SUB-ASSEMBLY -460/3 47111-990 --MOTOR HOUSING 38311-217 --STATOR 47113-103 --STUD MC1042 17000 --VOLTAGE TAG 38816-460 -575/3 47111-991 --MOTOR HOUSING 38311-217 --STATOR 47113-104 --STUD MC1042 17000 --VOLTAGE TAG 38816-128 BEARING 23282-010 ROTOR/SHAFT ASSEMBLY...
  • Page 30 OM-06549 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.
  • Page 31 SF SERIES OM-06549 was faulty or questionable, the cause must be de­ Pump Casing 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 END DISASSEMBLY pump in a vertical position.
  • Page 32 OM-06549 SF SERIES move the impeller screw (5). Remove the impeller If no further disassembly is required, proceed to washer (4). Remove the metal rod from between the appropriate areas in PUMP END REASSEMB­ the vanes of the impeller. Upper Seal Removal NOTE An alternate method of removing the impeller screw (Figures E-2 and E-3)
  • Page 33 SF SERIES OM-06549 PUMP END REASSEMBLY precautions printed on solvent contain­ ers. NOTE Inspect the rotor shaft for damaged threads, scor­ Reuse of old O‐rings or shaft seal parts will result in ing, or nicks. Remove nicks and burrs with a fine premature leakage or reduced pump performance.
  • Page 34 OM-06549 SF SERIES ROTOR STATIONARY SHAFT SEAL SEAT ROTATING O‐RING ELEMENT SPRING SPRING BELLOWS AND CENTERING RETAINER ASSY WASHER O‐RING SEAL RETAINING RING STATIONARY SEAL SEAT SEAL PLATE SHAFT SLEEVE O‐RING BELLOWS AND RETAINER ASSY ROTATING ELEMENT SPRING SHIM SET IMPELLER Figure E-3.
  • Page 35 SF SERIES OM-06549 Position the intermediate so the holes for the against the shaft shoulder. Use caution not to nick mounting hardware in the intermediate align with or damage the O‐ring on the shaft keyway. those in the motor housing and press the inter­ Position the seal plate on a clean flat surface with mediate into the motor housing until fully seated.
  • Page 36 OM-06549 SF SERIES Lubricate the I.D. of the bellows with water and Suction Head and Wear Ring Installation slide the rotating subassembly over the shaft (Figure E-1) sleeve (14) until the seal face is just flush with the undercut end of the sleeve. The suction head (8) and wear ring (6) must be installed in the pump casing (1) before installing Slide the assembled shaft sleeve and rotating por­...
  • Page 37 SF SERIES OM-06549 clearance is too narrow, turn the screws (10) in an sition and locked out, or that the power alternating pattern to push the pump casing and supply to the control box has been suction head away from the impeller until the prop­ otherwise cut off and locked out, before er clearance is achieved.
  • Page 38 OM-06549 SF SERIES Rotor Shaft and Bearing Removal precautions printed on solvent contain­ ers. (Figure E-2) Rotate the bearings by hand to check for rough­ See PUMP END DISASSEMBLY, and remove all ness or binding. If rotation is rough, replace the pump end and seal components.
  • Page 39 SF SERIES OM-06549 Using two propane heat torches of the type de­ is recommended that these steps be performed by signed to melt ice or burn weeds from sidewalks at least two people to promote efficient installation and driveways, apply heat quickly and evenly to of the stator.
  • Page 40 OM-06549 SF SERIES turns. Tape the stator leads together to protect bent or damaged, or if the laminations are sepa­ them during installation. rated, replace the shaft and rotor (a single assem­ bly). NOTE Stator installation involves heating the motor hous­ ing.
  • Page 41 SF SERIES OM-06549 intermediate to the motor housing with the hard­ race, balls, or ball cage. Press only on the ware (11 and 12). Torque the capscrews to 47 ft. inner race. lbs. (6,5 m. kg.). After the bearings have been installed and allowed to cool, check to ensure that they have not moved Terminal Housing Assembly Installation out of position in shrinking.
  • Page 42 OM-06549 SF SERIES housing over the opening in the top of the motor Hoisting Bail Installation housing. (Figure E-1) Check to ensure that the contacts on the ends of If the hoisting bail (28) was removed in order to re­ the motor stator leads are firmly installed in their re­...
  • Page 43 SF SERIES OM-06549 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 OM-06549 SF SERIES 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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