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GORMAN-RUPP PUMPS JSV Series Maintenance And Repair

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PUBLICATION NUMBER MR−03837
November 10, 1992
JSV SERIES PUMPS
MOTOR FRAME SIZE 1
FM
APPROVED
X-PROOF MOTORS FOR CLASS 1,
DIV. 1, GROUPS C & D LOCATIONS
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
D
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
Printed in U.S.A.
e
Copyright by the Gorman-Rupp Company

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Summary of Contents for GORMAN-RUPP PUMPS JSV Series

  • Page 1 PUBLICATION NUMBER MR−03837 November 10, 1992 JSV SERIES PUMPS MOTOR FRAME SIZE 1 APPROVED X-PROOF MOTORS FOR CLASS 1, DIV. 1, GROUPS C & D LOCATIONS THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A.

  • Page 2: Table Of Contents

    MR−03837 JSV SERIES PUMPS APPROVED INTRODUCTION Thank You for purchasing a Gorman-Rupp JSV The pump is driven by a water-proof, explosion- Series FM-Approved Pump. Read this manual proof, submersible electric motor that is FM-ap- carefully to learn how to safely maintain and ser- proved for Class 1, Division 1, Group C and D loca- vice your pump.
  • Page 3 JSV SERIES PUMPS MR−03837 APPROVED RECORDING MODEL AND scribed in this and the other accompanying litera- ture. Please note that should the equipment be SERIAL NUMBERS abused or modified to change its performance be- yond the original factory specifications, the war-...

  • Page 4: Safety − Section A

    SAFETY − SECTION A following information applies throughout this manual to Gorman- Rupp JSV Series FM-Approved Sub- mersible pumps. The electrical power used to operate this pump is high enough to cause inju- This manual contains essential informa- ry or death. Obtain the services of a qu-...
  • Page 5 JSV SERIES PUMPS MR−03837 APPROVED This pump was wired at the factory only The following precautions should be for the voltage shown on the nameplate. taken before attempting to service the Do not attempt to change the voltage on pump; otherwise, injury or death could a dual-voltage motor.

  • Page 6: Troubleshooting − Section B

    MR−03837 JSV SERIES PUMPS APPROVED TROUBLESHOOTING − SECTION B Review all SAFETY information in Section A. 3. Allow the pump to completely cool if overheated. 4. Check the temperature before opening any covers, plates or The following precautions should be plugs.
  • Page 7 JSV SERIES PUMPS MR−03837 APPROVED TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Pump running backwards. Check and correct impeller rotation MOTOR RUNS BUT FAILS TO DELIVER (see Rotation in Installation and RATED FLOW OR Operation Manual). PRESSURE Voltage too low or too high; excessive Check incoming voltage;...

  • Page 8: Electrical Testing

    MR−03837 JSV SERIES PUMPS APPROVED ELECTRICAL TESTING can be measured. If possible, measure the voltage at the control box with: Make the electrical checks which follow to deter- 1. The pump off. mine if pump malfunctions are being caused by problems in the motor or in the power cable.

  • Page 9: Insulation Resistance

    JSV SERIES PUMPS MR−03837 APPROVED Insulation Resistance b. Readings will indicate resistance values in both the power cable and motor windings.If resistance reads infinity (1), insulation is Set the megohmmeter at R x 100, and zero-ba- good. If resistance reads between infinity (1), and 1 megohm, insulation is acceptable but lance it.

  • Page 10: Pump Maintenance And Repair − Section C

    MR−03837 JSV SERIES PUMPS APPROVED PUMP MAINTENANCE AND REPAIR − SECTION C GENERAL INFORMATION and D environments. All repairs to the pump, other than seal, impeller and other hydraulic components, must be per- Review all SAFETY information in Section A.
  • Page 11 JSV SERIES PUMPS MR−03837 APPROVED SECTION DRAWING Figure C−1. Typical JSV Series Motor Frame Size 1 Pump Assembly PAGE C − 2 MAINTENANCE AND REPAIR...

  • Page 12: Part Identification List

    MR−03837 JSV SERIES PUMPS APPROVED Typical JSV Series Motor Frame Size 1 Pump Assembly Part Identification List Refer to the separate Parts List Manual for part numbers and quantities. ITEM PART NAME MOTOR ASSEMBLY IMPELLER SHAFT KEY IMPELLER WASHER IMPELLER SCREW...

  • Page 13: Pump End Disassembly

    JSV SERIES PUMPS MR−03837 APPROVED PUMP END DISASSEMBLY suitable lifting device to carefully separate the motor assembly (1) and pump end compo- nents from the volute casing. References are to Figure C−1. NOTE Removing Impeller The pump end components may be separated from 1.

  • Page 14: Inspection And Cleaning

    MR−03837 JSV SERIES PUMPS APPROVED seal stationary element and retaining seat from ject to wear patterns which cannot be re- the retaining cup. aligned during assembly. The seal assem- bly should be replaced completely at each 4. Remove the O-ring from the groove in the seal overhaul to ensure trouble-free operation.

  • Page 15: Seal Testing

    JSV SERIES PUMPS MR−03837 APPROVED BEARING STATION- HOUSING SEAT DRIVE O-RING ROTATING RETAIN- ELEMENT SEAL CLAMP CLAMP SPRING STATIONARY ELEMENT RING RETAIN- SEAT Figure C−2. Motor Frame 1 Seal Assembly 1. Lubricate the motor shaft and the seal cavity of the seal face of the stationary element, and the lower bearing housing.
  • Page 16 MR−03837 JSV SERIES PUMPS APPROVED NOTE 3. Submerge the motor assembly so that both hose connections are covered. Apply 14−15 The compressed air used in testing must be dry. psi pressure maximum to both air hoses. Moist air in the motor housing will cause the mois- ture switch inside the motor to trip.

  • Page 17: Lubrication

    JSV SERIES PUMPS MR−03837 APPROVED 4. Lubricate the threads of the impeller screw (10) Draining Oil and its mating surfaces with SAE 10W 30 oil and 1. Allow the pump to completely cool before install the impeller screw. draining oil or performing any service to the pump.

  • Page 18: The Gorman-Rupp Company

    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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