GORMAN-RUPP PUMPS VG Series Installation, Operation And Maintenance Manual
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- Page 1 OM‐02818‐OB02 September 11, 2000 Rev. A 8/7/18 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST VG SERIES PUMP MODEL VG6E3-B GORMAN‐RUPP PUMPS www.grpumps.com 2000 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:...
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..........PAGE I - 1 WARNINGS - SECTION A . - Page 4 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR - SECTION E ....PAGE E - 1 STANDARD PERFORMANCE CURVE ........PAGE E - 1 PUMP MODEL - PARTS LIST .
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Page 5: Introduction
VG SERIES OM-02818 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 VG SERIES OM-02818 SAFETY - SECTION A These warnings apply to the VG Series make certain that the pump and all pip ing connections are tight, properly sup basic pumps. Gorman‐Rupp has no ported and secure before operation. control over or particular knowledge of the power source which will be used.
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Page 7: Installation - Section B
VG SERIES OM-02818 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,... -
Page 8: Preinstallation Inspection
OM-02818 VG SERIES PREINSTALLATION INSPECTION POSITIONING PUMP Lifting The pump assembly was inspected and tested be fore shipment from the factory. Before installation, Use lifting equipment with a capacity of at least inspect the pump for damage which may have oc... -
Page 9: Materials
VG SERIES OM-02818 Materials the source of the liquid being pumped; if the line slopes down to the pump at any point along the suction run, air pockets will be created. Either pipe or hose maybe used for suction and discharge lines;... -
Page 10: Suction Line Positioning
OM-02818 VG SERIES If there is a liquid flow from an open pipe into the tance equal to at least 3 times the diameter of the sump, the flow should be kept away from the suc suction pipe. tion inlet because the inflow will carry air down into the sump, and air entering the suction line will re... -
Page 11: Alignment
VG SERIES OM-02818 If a throttling valve is desired in the discharge line, use a valve as large as the largest pipe to minimize friction losses. Never install a throttling valve in a suction line. Adjusting the alignment in one direction may alter the alignment in another direc... -
Page 12: V-Belt Drives
OM-02818 VG SERIES Check parallel adjustment by laying a straightedge Tighten the belts in accordance with the belt manu across both coupling rims at the top, bottom, and facturer's instructions. If the belts are too loose, side. When the straightedge rests evenly on both they will slip;... -
Page 13: Operation - Section C
OM-02818 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-02818 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-02818 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... -
Page 16: Bearing Temperature Check
OM-02818 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... -
Page 17: Troubleshooting - Section D
VG‐SERIES OM-02818 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-02818 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;...
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Page 19: Preventive Maintenance
VG‐SERIES OM-02818 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-02818 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 VG SERIES OM-02818 PUMP MAINTENANCE AND REPAIR - SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPER ATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL VG6E3-B Based on 70_ F (21,1_C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
- Page 22 OM-02818 VG SERIES SECTION DRAWING PARTS PAGE Figure 1. Pump Model VG6E3-B PAGE E - 2 MAINTENANCE & REPAIR...
- Page 23 VG SERIES OM-02818 PARTS LIST Pump Model VG6E3-B (From S/N 1238969 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...
- Page 24 OM-02818 VG SERIES PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Before attempting to open or service the Review all SAFETY information in Section A. pump: 1. Familiarize yourself with this man Follow the instructions on all tags, label and de ual.
- Page 25 VG SERIES OM-02818 Pull the sleeve and rotating portion of the seal from approved by Gorman‐Rupp. Use of non‐ the seal plate. Apply oil to the sleeve and work it up authorized parts may result in damage to under the bellows. Slide the rotating element, re...
- Page 26 OM-02818 VG SERIES Place a block of wood against the drive end of the ers or races and cause premature bearing shaft and tap the shaft and roller bearing (40) out of failure. the bearing housing. The ball bearing (24) will re...
- Page 27 VG SERIES OM-02818 cure the bearing covers to the bearing housing during reassembly. This could result in premature (20) with the capscrews (17 and 27). Be careful failure. If necessary to reuse an old seal in an emer not to damage the lip of the oil seals on the shaft gency, carefully wash all metallic parts in fresh keyways and shaft threads.
- Page 28 OM-02818 VG SERIES RETAINER BELLOWS SPRING CENTERING WASHER O‐RING SPRING STATIONARY ELEMENT SHAFT SLEEVE O‐RING IMPELLER SHAFT SEAL SEAL CAP COLLAR SETSCREW ROTATING SEAL PLATE ELEMENT Figure 2. 25271-098 Seal Assembly Slide the spring holder and spring over the sleeve and against the collar.
- Page 29 VG SERIES OM-02818 until both are fully seated. Install the impeller nut Bearings (47). The bearing housing was fully lubricated when Install the seal plate gasket (10). Slide the pump shipped from the factory. Check the oil level regu casing (1) over the impeller and secure it to the seal larly through the sight gauge (36) and maintain it at plate with the nuts (13).
- Page 30 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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