GORMAN-RUPP SM SERIES Manual

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Installation, operation and maintenance manual (50 pages)

Maintenance and repair with troubleshooting (34 pages)

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PUBLICATION NUMBER MR-04427

March 6, 1996

Rev. A 12‐18‐12

SM SERIES PUMPS

SM2F

All Materials And Voltages

THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO

www.grpumps.com

GORMAN‐RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

1996 The Gorman‐Rupp Company

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Page 1 PUBLICATION NUMBER MR-04427 March 6, 1996 Rev. A 12‐18‐12 SM SERIES PUMPS SM2F All Materials And Voltages THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. 1996 The Gorman‐Rupp Company...
Page 2 Register your new Gorman‐Rupp pump online at www.grpumps.com/register. Valid serial number and e‐mail address required.
Page 3 MR-04427 SM SERIES PUMPS INTRODUCTION Thank You for purchasing a Gorman‐Rupp SM age equipment, and to those which could be dan Series Pump. Read this manual carefully to learn gerous to personnel. However, this manual cannot how to safely maintain and service your pump. Fail...
Page 4 SM SERIES PUMPS MR-04422 RECORDING MODEL AND who operate and maintain their equipment as de scribed in this and the other accompanying litera SERIAL NUMBERS ture. The integral electric motor must be operated Please record the pump model, serial number, volt...
Page 5 4. Close the discharge valve (if throughout this manual to Gorman‐ used). Rupp SM Series submersible motor driven pumps. This manual will alert personnel to known procedures which require spe This pump is not designed to pump vol...
Page 6 SM SERIES PUMPS MR-04427 ments. Failure to observe these require ments could result in injury or death to personnel. Never attempt to alter the length or re pair any power cable with a splice. The pump motor and cable must be com...
Page 7 MR-04427 SM SERIES PUMPS operate against a closed discharge lift it, make certain that they are posi valve for long periods of time. 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 8 MR-04427 SM SERIES PUMPS TROUBLESHOOTING - SECTION B Review all SAFETY information in Section A. 5. Close the discharge valve (if used). The following precautions should be taken before attempting to service the The electrical power used to operate pump; otherwise, injury or death could this pump is high enough to cause inju...
Page 9 SM SERIES PUMPS MR-04427 Table B‐1 Troubleshooting Chart (continued) TROUBLE CAUSE REMEDY MOTOR RUNS, BUT Discharge head too high. Reduce discharge head, or install staging PUMP FAILS TO DE adaptor and additional pump. LIVER RATED DIS CHARGE Low or incorrect voltage.
Page 10 MR-04427 SM SERIES PUMPS be the same at each condition, as accurate ly as the meter will read. Nominal amperage values are listed in Table 1, but these apply only when the actual voltage at the site is the Be certain to refer to the wiring diagram(s) nominal voltage listed.
Page 11 SM SERIES PUMPS MR-04427 Insulation Resistance tion. If the reading is between infinity (1) and 1 megohm, the insulation is acceptable To check insulation, zero‐balance the ohmmeter but should be rechecked periodically. If the set at the RX100K scale, and test as follows: reading is less than 1 megohm, the insula...
Page 12 MR-04427 SM SERIES PUMPS PUMP MAINTENANCE AND REPAIR - SECTION C GENERAL INFORMATION formed by a Gorman‐Rupp authorized Submersible repair facility or the factory. Review all SAFETY information in Section A. Any repairs to the motor assembly per formed by the customer or an unautho...
Page 13 SM SERIES PUMPS MR-04427 SECTION DRAWING Figure C-1. Typical SM2F Series Pump Assembly PAGE C - 2 MAINTENANCE AND REPAIR...
Page 14 MR-04427 SM SERIES PUMPS Typical SM2F Series Pump Assembly Parts Identification List Refer to the separate Parts List Manual for serviceable parts, part numbers and quantities. ITEM PART NAME ITEM PART NAME SUCTION CASING ROUND HEAD MACHINE SCREW IMPELLER 50 FT. CABLE ASSEMBLY...
Page 15 SM SERIES PUMPS MR-04427 removing the pump. If rigid discharge piping is PUMP END DISASSEMBLY used, disconnect the piping before attempting to move the pump. References are to Figure C-1. Review all SAFETY information in Section A. Follow the instructions on all tags, label and decals attached to the pump.
Page 16 MR-04427 SM SERIES PUMPS Suction Casing Removal PUMP END DISASSEMBLY To remove the suction casing (1), disengage the hardware (49 and 50) securing the suction casing Strainer Removal to the motor housing (41). Remove the suction cas ing. Remove and discard the casing gasket (9).
Page 17 SM SERIES PUMPS MR-04427 diate, seal, bearings (43 and 46), and shaft and ro If no further disassembly is required, proceed to tor assembly (18) are free from the motor housing. PUMP END REASSEMBLY. Inspect the rotor, stator, and inside of the motor PUMP END REASSEMBLY housing for evidence of upper seal leakage.
Page 18 MR-04427 SM SERIES PUMPS file or emery cloth to restore original contours. If the If a new seal is to be installed, do not unwrap it until shaft is bent or severely damaged, the rotor and time of installation. Cleanliness of seal compo...
Page 19 SM SERIES PUMPS MR-04427 measured from the bottom of the bore in the inter Coat the O‐ring (10) with light oil, and install it on mediate to the motor side of the retaining ring (6). the seal plate pilot. Press the seal plate into the mo...
Page 20 MR-04427 SM SERIES PUMPS STATIONARY STATIONARY O‐RINGS SEAT INTERMEDIATE STATIONARY ELEMENT ROTOR SHAFT ROTATING ELEMENT BELLOWS BELLOWS RETAINER ADJUSTING SPRING SHIMS SHAFT IMPELLER Figure C-3. Lower Seal Assembly that it is clean and dry. If cleaning is necessary, use a clean tissue to wipe lightly in a concentric pattern.
Page 21 SM SERIES PUMPS MR-04427 Slide the seal spring over the shaft and bellows re No. 242' or equivalent compound before reinstal tainer. See Figure C-3 for proper order of seal as ling the impeller washer and nut. sembly. Strainer Installation Impeller Installation Inspect the strainer assembly (51) for cracks, dis...
Page 22 MR-04427 SM SERIES PUMPS Secure the pump in an upright position. Remove otherwise cut off and locked out, before the hardware (30 and 31) securing the terminal attempting to open or service the pump housing (38) to the motor housing (41).
Page 23 SM SERIES PUMPS MR-04427 bearings (43 and 46) from the motor housing (41). Use caution to prevent the rotor from falling on the stator windings. If necessary, tap the impeller end of the rotor shaft with a block of wood or soft‐faced...
Page 24 MR-04427 SM SERIES PUMPS dling the stator, do not set it on the end windings; lay it on its side. Most cleaning solvents are toxic and flammable. Use them only in a well ven tilated area; free from excessive heat, Do not attempt to rewind the stator.
Page 25 SM SERIES PUMPS MR-04427 After the stator is fully and squarely seated on the bearings onto the shaft until it is fully seated motor housing shoulder, remove the expandable against the shaft shoulder. This should be done disc tool and untape or remove the protective quickly, in one continuous motion, to prevent the sleeve from the stator leads.
Page 26 MR-04427 SM SERIES PUMPS precautions printed on solvent contain ers. Carefully ease the rotor and assembled bearings Never attempt to alter the length or re into the motor housing and through the stator so pair any power cable with a splice. The that the upper bearing (43) seats squarely against pump motor and cable must be com...
Page 27 SM SERIES PUMPS MR-04427 stator leads with the connectors (40). Be sure the ture entering the terminal housing orange and blue cable leads are connected to the could cause a short circuit, resulting in red (thermal overload) stator leads. After installing pump damage and possible serious in...
Page 28 MR-04427 SM SERIES PUMPS existing hole may be reused if it is in the cor equalize the wire length. Twist the wire ends rect location. approximately 10 turns and insert one end of the wire through hole A. Draw tight and twist c.
Page 29 SM SERIES PUMPS MR-04427 Vacuum Pump Quick Disconnect Manometer Fitting Full‐Closing Ball‐Type Shutoff Venturi Submersible Valve Pump Quick Disconnect Î Î Î Fitting Air Compressor Î Î Î Figure C‐5. Vacuum Test System Seal Cavity Testing 30 In. Hg. Lower vacuum can cause sepa...
Page 30 MR-04427 SM SERIES PUMPS Install full‐closing ball‐type shutoff valves with Figure C‐6 shows a simple schematic for setting up either a vacuum pump or a venturi/compressor quick‐disconnect fittings in the pipe plug holes in test system. both the motor and seal cavities. Test the motor...
Page 31 SM SERIES PUMPS MR-04427 Table C-3. Pump Oil Specifications Specifications: Type ......
Page 32 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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