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

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ACE
OM-02811-OB02
September 11, 2000
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
VG SERIES PUMP
MODEL
VG2D3---B
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
D
Printed in U.S.A.
E
Copyright by the Gorman-Rupp Company

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  • Page 1 OM-02811-OB02 September 11, 2000 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST VG SERIES PUMP MODEL VG2D3---B THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. Copyright by the Gorman-Rupp Company...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........PAGE I --- 1 WARNINGS --- SECTION A .
  • Page 3 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR --- SECTION E ....PAGE E --- 1 STANDARD PERFORMANCE CURVE ........PAGE E --- 1 PARTS LIST: Pump Model VG2D3---B...

  • Page 4: Introduction

    Rupp pump. construction for wetted parts is gray iron. Be sure the liquid being pumped is compatible with this This pump is a VG Series, enclosed impeller, cen- trifugal model with straight-in suction without a material. If there are any questions regarding the pump or its application which are not covered in this manual or in...
  • Page 5 VG SERIES OM -- 02811 SAFETY --- SECTION A These warnings apply to the VG Series basic pumps. Gorman-Rupp has no control over or particular knowledge of the power source which will be used. Refer to the manual accompanying the...

  • Page 6: Installation

    VG SERIES OM -- 02811 INSTALLATION --- SECTION B Review all SAFETY information in Section A. specific application. Since the pressure supplied to the pump is critical to performance and safety, Since pump installations are seldom identical, this be sure to limit the incoming pressure to 50% of...

  • Page 7: Preinstallation Inspection

    OM -- 02811 VG SERIES PREINSTALLATION INSPECTION POSITIONING PUMP The pump assembly was inspected and tested be- Lifting fore shipment from the factory. Before installation, inspect the pump for damage which may have oc- Use lifting equipment with a capacity of at least 540 curred during shipment.

  • Page 8: Line Configuration

    VG SERIES OM -- 02811 ing piping couplings in suction lines is not recom- should be the eccentric type, and should be in- mended. stalled with the flat part of the reducers uppermost to avoid creating air pockets. Valves are not nor-...

  • Page 9: Suction Line Positioning

    OM -- 02811 VG SERIES of the suction pipe. The baffle will allow entrained critical to efficient pump operation. Figure 2 shows air to escape from the liquid before it is drawn into recommended minimum submergence vs. veloc- the suction inlet.

  • Page 10: Alignment

    VG SERIES OM -- 02811 Coupled Drives stalled in the discharge line to protect the pump from excessive shock pressure and reverse rota- When using couplings, the axis of the power tion when it is stopped. source must be aligned to the axis of the pump shaft in both the horizontal and vertical planes.

  • Page 11: Belt Drives

    OM -- 02811 VG SERIES V-Belt Drives Tighten the belts in accordance with the belt manu- facturer’s instructions. If the belts are too loose, When using V-belt drives, the power source and they will slip; if the belts are too tight, there will be the pump must be parallel.

  • Page 12: Operation

    OM -- 02811 VG SERIES OPERATION --- SECTION C Review all SAFETY information in Section A. the priming device and pump to preserve the prime. Start the pump and open the discharge Follow the instructions on all tags, labels and valve slowly to fill the discharge line.

  • Page 13: Auxiliary Ejectors

    OM -- 02811 VG SERIES ing in order to fill the suction line and pump casing operated in the wrong direction, pump perform- with liquid. To prime a pump using an exhaust ance could be adversely affected, and the pump primer, open the gas cock in the priming line and could be seriously damaged.

  • Page 14: Strainer Check

    OM -- 02811 VG SERIES pump and allow it to cool before servicing it. Refill Open the suction line, and read the vacuum gauge the pump casing with cool liquid. with the pump primed and at operation speed. Shut off the pump. The vacuum gauge reading will immediately drop proportionate to static suction lift, and should then stabilize.
  • Page 15 OM -- 02811 VG SERIES Temperatures up to 160_F (71_C) are considered to operate properly. Make certain that the bearing normal for bearings, and they can operate safely to lubricant is of the proper viscosity and at the cor- at least 180_F (82_C).

  • Page 16: Troubleshooting

    VG-SERIES OM -- 02811 TROUBLESHOOTING --- SECTION D Review all SAFETY information in Section A. Before attempting to open or service the pump: 1. Familiarize yourself with this manual. 2. Lock out or disconnect the power source to ensure that the pump will remain inoperative.
  • Page 17 OM -- 02811 VG-SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Discharge throttling valve partially Open discharge valve fully; check FAILS TO DELIVER closed; check that valve is installed im- piping installation. RATED FLOW OR properly. PRESSURE (cont.) Pump speed too slow. Check driver output;...

  • Page 18: Preventive Maintenance

    VG-SERIES OM -- 02811 TROUBLE POSSIBLE CAUSE PROBABLE REMEDY BEARINGS RUN Bearing temperature is high, but Check bearing temperature regu- TOO HOT within limits. larly to monitor any increase. Low or incorrect lubricant. Check for proper type and level of lubricant.
  • Page 19 OM -- 02811 VG-SERIES Preventive Maintenance Schedule Service Interval* Item Daily Weekly Monthly Semi- Annually Annually General Condition (Temperature, Unusual Noises or Vibrations, Cracks, Leaks, Loose Hardware, Etc.) Pump Performance (Gauges, Speed, Flow) Bearing Lubrication Seal Lubrication (And Packing Adjustment, If So Equipped) V-Belts (If So Equipped) Air Release Valve Plunger Rod (If So Equipped)
  • Page 20 VG SERIES OM -- 02811 PUMP MAINTENANCE AND REPAIR --- SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL VG2D3-- B Based on 70_ F clear water at sea level with mini- Contact the Gorman-Rupp Company to verify per- mum suction lift.
  • Page 21 OM -- 02811 VG SERIES SECTION DRAWING Figure 1. Pump Model VG2D3---B PAGE E -- 2 MAINTENANCE & REPAIR...
  • Page 22 VG SERIES OM -- 02811 PARTS LIST Pump Model VG2D3---B (From S/N 1191621 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.
  • Page 23 OM -- 02811 VG SERIES PUMP AND SEAL DISASSEMBLY 5. Close the suction and discharge valves. AND REASSEMBLY 6. Vent the pump slowly and cau- tiously. Review all SAFETY information in Section A. 7. Drain the pump. Follow the instructions on all tags, label and de- cals attached to the pump.
  • Page 24 VG SERIES OM -- 02811 Apply oil to the sleeve and work it up under the bel- Place a block of wood against the drive end of the lows. Slide the rotating element, retainer and bel- shaft and tap the shaft and assembled bearings lows, spring, and spring holder off the sleeve.
  • Page 25 OM -- 02811 VG SERIES housing. Replace the bearings, shaft, or bearing housing if the proper bearing fit is not achieved. Use a bearing puller to remove the inboard and Use caution when handling hot bear- outboard bearings from the shaft.
  • Page 26 VG SERIES OM -- 02811 port the bearing housing with a wood block until Handle the seal parts with extreme care to prevent the pump is fully reassembled. Lubricate the bear- damage. Be careful not to contaminate precision ings as indicated in LUBRICATION.
  • Page 27 OM -- 02811 VG SERIES until both are fully seated. Install the impeller washer and nut (47 and 48). Install the seal plate gasket (10). Slide the pump This seal is not designed for operation at casing (1) over the impeller and secure it to the seal plate with the hardware (12 and 14).
  • Page 28 VG SERIES OM -- 02811 portant in areas where variable hot and tinuously or installed in an environment with rapid cold temperatures are common. temperature change. For cold weather operation, consult the factory or a lubricant supplier for the recommended grade of oil.
  • Page 29 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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Vg2d3-b

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