GORMAN-RUPP PUMPS VG6D3-B Installation, Operation, And Maintenance Manual With Parts List
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GORMAN-RUPP PUMPS VG6D3-B Installation, Operation, And Maintenance Manual With Parts List

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ACE
OM−02817-02
September 11, 2000
Rev. A 11-15-08
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
VG SERIES PUMP
MODEL
VG6D3−B
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
www.grpumps.com
D
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
Printed in U.S.A.
e
2000 The Gorman-Rupp Company

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  • Page 1 OM−02817-02 September 11, 2000 Rev. A 11-15-08 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST VG SERIES PUMP MODEL VG6D3−B THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. 2000 The Gorman-Rupp Company...
  • 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 −...
  • Page 4 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR − SECTION E ....PAGE E − 1 STANDARD PERFORMANCE CURVE ........PAGE E −...

  • Page 5: Introduction

    VG SERIES OM−02817 INTRODUCTION Thank You for purchasing a Gorman-Rupp pump. Read this manual carefully to learn how to safely install and operate your pump. Failure to do so could result in personal injury or damage to the Immediate hazards which WILL result in pump.
  • Page 6 VG SERIES OM−02817 SAFETY − SECTION A This information applies to the VG Ser- make certain that the pump and all pip- ies basic pumps. Gorman-Rupp has no ing connections are tight, properly sup- control over or particular knowledge of ported and secure before operation.

  • Page 7: Installation − Section B

    VG SERIES OM−02817 INSTALLATION − SECTION B Review all SAFETY information in Section A. configuration, and priming must be tailored to the specific application. Since the pressure supplied Since pump installations are seldom identical, this to the pump is critical to performance and safety, section offers only general recommendations and be sure to limit the incoming pressure to 50% of practices required to inspect, position, and ar-...

  • Page 8: Preinstallation Inspection

    OM−02817 VG SERIES PREINSTALLATION INSPECTION POSITIONING PUMP Lifting The pump assembly was inspected and tested be- fore shipment from the factory. Before installation, Pump unit weights will vary depending on the inspect the pump for damage which may have oc- mounting and drive provided.

  • Page 9: Line Configuration

    VG SERIES OM−02817 Line Configuration to avoid creating air pockets. Valves are not nor- mally used in suction lines, but if a valve is used, install it with the stem horizontal to avoid air pock- Keep suction and discharge lines as straight as ets.

  • Page 10: Suction Line Positioning

    OM−02817 VG SERIES air to escape from the liquid before it is drawn into critical to efficient pump operation. Figure 2 shows the suction inlet. recommended minimum submergence vs. veloc- ity. If two suction lines are installed in a single sump, the flow paths may interact, reducing the efficiency of one or both pumps.

  • Page 11: Alignment

    VG SERIES OM−02817 from excessive shock pressure and reverse rota- Coupled Drives tion when it is stopped. When using couplings, the axis of the power source must be aligned to the axis of the pump shaft in both the horizontal and vertical planes. Most couplings require a specific gap or clearance between the driving and the driven shafts.

  • Page 12: Belt Drives

    OM−02817 VG SERIES straightedge to measure the amount of misalign- Tighten the belts in accordance with the belt manu- ment. facturer’s instructions. If the belts are too loose, they will slip; if the belts are too tight, there will be V-Belt Drives excessive power loss and possible bearing failure.

  • Page 13: Operation − Section C

    OM−02817 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 de- valve slowly to fill the discharge line. When installed cals attached to the pump.

  • Page 14: Auxiliary Ejectors

    OM−02817 VG SERIES a venturi which creates a vacuum in the pump cas- Rotation ing in order to fill the suction line and pump casing The correct direction of pump rotation is counter- with liquid. To prime a pump using an exhaust clockwise when facing the impeller.

  • Page 15: Strainer Check

    OM−02817 VG SERIES against closed valves could bring the liquid to a inches (508,0 mm) or more of mercury. If it does boil, build pressure, and cause the pump to rup- not, check for air leaks in the seal, gasket, or dis- ture or explode.

  • Page 16: Bearing Temperature Check

    OM−02817 VG SERIES A sudden increase in bearing temperature is a BEARING TEMPERATURE CHECK warning that the bearings are at the point of failing to operate properly. Make certain that the bearing Bearings normally run at higher than ambient tem- lubricant is of the proper viscosity and at the cor- peratures because of heat generated by friction.

  • Page 17: Troubleshooting − Section D

    VG-SERIES OM−02817 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 18 OM−02817 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 19: Preventive Maintenance

    VG-SERIES OM−02817 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. Pump speed too high. Reduce speed of power source.
  • Page 20 OM−02817 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) Front Impeller Clearance (Wear Plate)

  • Page 21: Pump Maintenance And Repair − Section E

    VG SERIES OM−02817 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 VG6D3−B Based on 70_ F (21,1_C) clear water at sea level Contact the Gorman-Rupp Company to verify per- formance or part numbers.
  • Page 22 OM−02817 VG SERIES SECTION DRAWING PARTS PAGE Figure 1. Pump Model VG6D3−B PAGE E − 2 MAINTENANCE & REPAIR...
  • Page 23 VG SERIES OM−02817 PARTS LIST Pump Model VG6D3−B (From S/N 1188889 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 PART NAME PART MAT’L ITEM...

  • Page 24: Pump And Seal Disassembly And Reassembly

    OM−02817 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 25: Shaft And Bearing Removal And Disassembly

    VG SERIES OM−02817 under the bellows. Slide the rotating element, re- Place a block of wood against the drive end of the tainer and bellows, spring, and spring holder off shaft and tap the shaft and assembled bearings the sleeve. (26 and 40) out of the bearing housing.

  • Page 26: Shaft And Bearing Reassembly And Installation

    OM−02817 VG SERIES housing. Replace the bearings, shaft, or bearing vent the bearings from cooling and sticking on the housing if the proper bearing fit is not achieved. shaft. Use a bearing puller to remove the inboard and outboard bearings from the shaft. Remove the bearing spacers (21 and 36).

  • Page 27: Seal Reassembly And Installation

    VG SERIES OM−02817 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. finished faces;...

  • Page 28: Impeller Installation

    OM−02817 VG SERIES until both are fully seated. Install the impeller nut (48). Install the seal plate gasket (5). 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 nuts (12).

  • Page 29: Power Source

    VG SERIES OM−02817 tinuously or installed in an environment with rapid portant in areas where variable hot and cold temperatures are common. temperature change. For cold weather operation, consult the factory or a lubricant supplier for the recommended grade of oil.
  • Page 30 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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