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OM-02816-02

September 11, 2000

Rev. A 02‐06‐14

ACE

THE GORMAN‐RUPP COMPANY

MANSFIELD, OHIO

www.grpumps.com

GORMAN‐RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

2000 The Gorman‐Rupp Company

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

VG SERIES PUMP

MODEL

VG5C3-B

Содержание VG Series

Страница 1: ...E THE GORMAN RUPP COMPANY MANSFIELD OHIO www grpumps com GORMAN RUPP OF CANADA LIMITED ST THOMAS ONTARIO CANADA Printed in U S A 2000 The Gorman Rupp Company INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST VG SERIES PUMP MODEL VG5C3 B ...

Страница 2: ...erial 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 ...

Страница 3: ...s In Sumps PAGE B 3 Suction Line Positioning PAGE B 4 DISCHARGE LINES PAGE B 4 Siphoning PAGE B 4 Valves PAGE B 4 ALIGNMENT PAGE B 5 Coupled Drives PAGE B 5 V Belt Drives PAGE B 5 OPERATION SECTION C PAGE C 1 PRIMING PAGE C 1 Hand Primers Page C 1 Exhaust Primers Page C 1 Auxiliary Ejectors Page C 2 Vacuum Pumps Page C 2 STARTING PAGE C 2 Rotation Page C 2 OPERATION PAGE C 2 Leakage PAGE C 2 Liqui...

Страница 4: ...MBLY AND REASSEMBLY PAGE E 4 Impeller Removal PAGE E 4 Seal Removal PAGE E 4 Shaft And Bearing Removal And Disassembly PAGE E 5 Shaft And Bearing Reassembly And Installation PAGE E 6 Seal Reassembly and Installation PAGE E 7 Impeller Installation PAGE E 8 Final Pump Assembly PAGE E 8 LUBRICATION PAGE E 8 Seal Assembly PAGE E 8 Bearings PAGE E 8 Power Source PAGE E 9 ...

Страница 5: ...f there are any questions regarding the pump or its application which are not covered in this man ual or in other literature accompanying this unit please contact your Gorman Rupp distributor or The Gorman Rupp Company The Gorman Rupp Company P O Box 1217 Mansfield Ohio 44901 1217 Phone 419 755 1011 or Gorman Rupp of Canada Limited 70 Burwell Road St Thomas Ontario N5P 3R7 Phone 519 631 2870 For i...

Страница 6: ...e pump slowly and cau tiously 7 Drain the pump This pump is designed to handle liquids containing specified entrained solids Do not attempt to pump volatile corro sive or flammable materials which may damage the pump or endanger person nel as a result of pump failure After the pump has been positioned make certain that the pump and all pip ing connections are tight properly sup ported and secure b...

Страница 7: ...p or component only as high as necessary and keep personnel away from suspended objects Do not remove plates covers gauges pipe plugs or fittings from an over heated pump Vapor pressure within the pump can cause parts being disen gaged to be ejected with great force Al low the pump to completely cool before servicing ...

Страница 8: ...lled in a flooded suction application where the liquid is supplied to the pump under pressure some of the information such as mounting line configuration and priming must be tailored to the specific application Since the pressure supplied to the pump is critical to performance and safety be sure to limit the incoming pressure to 50 of the maximum permissible operating pressure as shown on the pump...

Страница 9: ... updating policy Do not put the pump into service until appropriate action has been taken POSITIONING PUMP Lifting Death or serious personal injury and damage to the pump or components can occur if proper lifting procedures are not observed Make certain that hoists chains slings or cables are in good working condition and of suffi cient capacity and that they are posi tioned so that loads will be ...

Страница 10: ...e must be as short and direct as possible When operation involves a suction lift the line must always slope upward to the pump from 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 Fittings Suction lines should be the same size as the pump inlet If reducers are used in suction lines they should be the eccentric...

Страница 11: ...tance equal to at least 3 times the diameter of the suction pipe Suction Line Positioning The depth of submergence of the suction line is critical to efficient pump operation Figure 2 shows recommended minimum submergence vs veloc ity NOTE The pipe submergence required may be reduced by installing a standard pipe increaser fitting at the end of the suction line The larger opening size will reduce ...

Страница 12: ...sit and handling Pumps must be checked and realigned before operation Before checking alignment tighten the foundation bolts The pump casing feet and or pedestal feet and the driver mounting bolts should also be tightly secured When checking alignment disconnect the power source to ensure that the pump will remain inoperative Adjusting the alignment in one direction may alter the alignment in anot...

Страница 13: ...ure 3C In drive systems using two or more belts make certain that the belts are a matched set unmatched sets will cause accelerated belt wear MISALIGNED SHAFTS NOT PARALLEL MISALIGNED SHAFTS NOT IN LINE ALIGNED SHAFTS PARALLEL AND SHEAVES IN LINE Figure 3C Alignment of V Belt Driven Pumps Tighten the belts in accordance with the belt manu facturer s instructions If the belts are too loose they wil...

Страница 14: ...as an option Before attempting to operate the priming device close the discharge throttling valve Installation of a spring loaded check valve is also recommended to facilitate priming Once the pump is fully primed close the valve between the priming device and pump to preserve the prime Start the pump and open the discharge valve slowly to fill the discharge line When installed in a flooded suctio...

Страница 15: ...Rotation The correct direction of pump rotation is counter clockwise when facing the impeller If the pump is operated in the wrong direction pump perform ance could be adversely affected and the pump could be seriously damaged Only operate this pump in the direction in dicated by the arrow on the pump body and on the accompanying decal Other wise pump performance could be ad versely affected and t...

Страница 16: ...uction line and start the pump At oper ating speed the pump should pull a vacuum of 20 inches 508 0 mm or more of mercury If it does not check for air leaks in the seal gasket or dis charge valve Open the suction line and read the vacuum gauge 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...

Страница 17: ...contact type thermometer against the housing Record this temperature for future reference A sudden increase in bearing temperature is a warning that the bearings are at the point of failing to operate properly Make certain that the bearing lubricant is of the proper viscosity and at the cor rect level see LUBRICATION in MAINTENANCE AND REPAIR Bearing overheating can also be caused by shaft misalig...

Страница 18: ...k Replace suction hose Leaking or worn seal or pump gasket Check pump vacuum Replace leaking or worn seal or gasket Strainer clogged Check strainer and clean if neces sary PUMP STOPS OR FAILS TO DELIVER RATED FLOW OR PRESSURE Air leak in suction line Correct leak Strainer clogged Check strainer and clean if neces sary Suction intake not submerged at proper level or sump too small Check installatio...

Страница 19: ...e clogged or binding Clean valve EXCESSIVE NOISE Cavitation in pump Impeller clogged or damaged Pump or drive not securely mounted Pumping entrained air Reduce suction lift and or friction losses in suction line Record vac uum and pressure gauge readings and consult local representative or factory Locate and eliminate source of air bubble Secure mounting hardware Clean out debris replace dam aged ...

Страница 20: ...Gorman Rupp pump For specific questions con cerning your application contact your Gorman Rupp distributor or the Gorman Rupp Company Record keeping is an essential component of a good preventive maintenance program Changes in suction and discharge gauge readings if so equipped between regularly scheduled inspec tions can indicate problems that can be corrected before system damage or catastrophic ...

Страница 21: ...Impeller Clearance Seal Plate I Check Valve I Pressure Relief Valve If So Equipped C Pump and Driver Alignment I Shaft Deflection I Bearings I Bearing Housing I Piping I Driver Lubrication See Mfgr s Literature Legend I Inspect Clean Adjust Repair or Replace as Necessary C Clean R Replace Service interval based on an intermittent duty cycle equal to approximately 4000 hours annually Adjust schedul...

Страница 22: ...l with minimum suction lift Since pump installations are seldom identical your performance may be dif ferent due to such factors as viscosity specific gravity elevation temperature and impeller trim 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 per formance or part numbers Pump speed and operating condition poi...

Страница 23: ...OM 02816 VG SERIES MAINTENANCE REPAIR PAGE E 2 SECTION DRAWING PARTSPAGE Figure 1 Pump Model VG5C3 B ...

Страница 24: ...8816 079 1 25 OIL INLET PLUG 26821 616 1 26 OUTBRD BALL BRG 23275 012 1 27 BRG CAP GSKT 26821 404 1 28 OUTBRD OIL SEAL 26821 634 1 29 HEX HD CAPSCREW 22645 162 4 30 BEARING CAP 26821 074 1 31 SHAFT KEY N0814 15990 1 32 REPAIR IMP SHAFT 26821 174 1 INCLUDES ITEMS 31 48 AND 49 33 HEX HD CAPSCREW 22645 162 2 34 FLAT WASHER K06 15991 2 35 FOOT 26821 208 1 36 BEARING SPACER 26821 321 1 37 BRG RETAINER ...

Страница 25: ...ensure that the pump will remain inoperative 3 Allow the pump to completely cool if overheated 4 Check the temperature before opening any covers plates or plugs 5 Close the suction and discharge valves 6 Vent the pump slowly and cau tiously 7 Drain the pump Death or serious personal injury and damage to the pump or components can occur if proper lifting procedures are not observed Make certain tha...

Страница 26: ...d only in a properly equipped shop by qualified personnel Separate the power source from the shaft 32 and remove the deflector 43 and key 31 Remove the hardware securing the foot 35 to the base and move the bearing housing to a clean well equipped shop for disassembly Remove the drain plug 39 and drain the bearing housing Clean and reinstall the drain plug Disengage the hardware 18 and 29 and remo...

Страница 27: ...ease installation An induction heater hot oil bath electric oven or hot plate may be used to heat the bearings Bear ings should never be heated with a direct flame or directly on a hot plate NOTE If a hot oil bath is used to heat the bearings both the oil and the container must be absolutely clean If the oil has been previously used it must be thor oughly filtered Heat the bearings to a uniform te...

Страница 28: ...ot be realigned during reassembly This could result in premature failure If necessary to reuse an old seal in an emer gency carefully wash all metallic parts in fresh cleaning solvent and allow to dry thoroughly Handle the seal parts with extreme care to prevent damage Be careful not to contaminate precision finished faces even fingerprints on the faces can shorten seal life If necessary clean the...

Страница 29: ... surface with the im peller side down Position the sleeve in the seal plate bore with the chamfered end facing up Slide the spring holder and spring over the sleeve and against the collar Assemble the drive grooves of rotating element into the drive lugs of the bellows retainer and slide this rotating portion of the seal over the sleeve until the retainer seats in the spring Use thumb pressure to ...

Страница 30: ...is lubricated by the medium be ing pumped and no additional lubrication is re quired Bearings The bearing housing was fully lubricated when shipped from the factory Check the oil level regu larly through the sight gauge 38 and maintain it at the middle of the gauge When lubrication is re quired add SAE No 30 non detergentoil through the oil inlet plug opening 25 Do not over lubri cate Over lubrica...

Страница 31: ...w 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 MANSFIELD OHIO GORMAN RUPP OF CANADA LIMITED ST THOMAS ONTARIO CANADA ...

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