Gorman-rupp-pumps 12D1-1B20 1463862 and up Bedienungsanleitung

OM−06361−OE01August 2, 2010ACEGTHE GORMAN-RUPP COMPANY D MANSFIELD, OHIOwww.grpumps.comGORMAN-RUPP OF CANADA LIMITED D ST. THOMAS, ONTARIO, CANADA

10 SERIES OM−06361PAGE B − 3INSTALLATIONLine ConfigurationKeep suction and discharge lines as straight aspossible to minimize friction losses. Make mi

OM−06361 10 SERIESPAGE B − 4 INSTALLATIONIf it is necessary to position inflow close to the suc-tion inlet, install a baffle between the inflow and th

10 SERIES OM−06361PAGE B − 5INSTALLATIONstalled in the discharge line to protect the pumpfrom excessive shock pressure and reverse rota-tion when it i

OM−0636110 SERIESOPERATION PAGE C − 1OPERATION − SECTION CReview all SAFETY information in Section A.Follow the instructions on all tags, labels andde

OM−06361 10 SERIESOPERATIONPAGE C − 2Lines With a BypassClose the discharge throttling valve (if soequipped) so that the pump will not have to primeag

OM−0636110 SERIESOPERATION PAGE C − 3STOPPINGNever halt the flow of liquid suddenly. If the liquidbeing pumped is stopped abruptly, damagingshock wave

TROUBLE POSSIBLE CAUSE PROBABLE REMEDYPUMP FAILS TOPRIMEStrainer clogged. Check strainer and clean if neces-sary.Suction lift or discharge head too hi

TROUBLE POSSIBLE CAUSE PROBABLE REMEDYPUMP STOPS ORFAILS TO DELIVERRATED FLOW ORPRESSUREPUMP REQUIRESTOO MUCHPOWERPUMP CLOGSFREQUENTLYFree impeller of

OM−0636110 SERIESTROUBLESHOOTING PAGE D − 3PREVENTIVE MAINTENANCESince pump applications are seldom identical, andpump wear is directly affected by su

10 SERIES OM−06361MAINTENANCE & REPAIR PAGE E − 1PUMP MAINTENANCE AND REPAIR - SECTION EMAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WI

Register your newGorman-Rupp pump online atwww.grpumps.comValid serial number and e-mail address required.RECORD YOUR PUMP MODEL AND SERIAL NUMBERPlea

10 SERIESOM−06361MAINTENANCE & REPAIRPAGE E − 2ILLUSTRATIONPARTS PAGEFigure 1. Pump Model 12D1−1B20

10 SERIES OM−06361MAINTENANCE & REPAIR PAGE E − 3PARTS LISTPump Model 12D1−1B20(From S/N 1463862 Up)If your pump serial number is followed by an 

10 SERIESOM−06361MAINTENANCE & REPAIRPAGE E − 4ILLUSTRATIONFigure 2. Pump Parts Only 12D1-(1B20) PPO

10 SERIES OM−06361MAINTENANCE & REPAIR PAGE E − 5PARTS LISTPump Parts Only 12D1-(1B20) PPOITEM NO.PART NAMEPART NUMBERMAT’LCODEQTY1 PUMP CASING 38

10 SERIESOM−06361MAINTENANCE & REPAIRPAGE E − 6PUMP AND SEAL DISASSEMBLYAND REASSEMBLYReview all SAFETY information in Section A.Follow the instru

OM−0636110 SERIESMAINTENANCE & REPAIR PAGE E − 7(11, 12, 14 and 15) securing the pump casing tothe rollover base (9).(Figure 2)Support the pump ca

10 SERIESOM−06361MAINTENANCE & REPAIRPAGE E − 8finished faces. Assemble the seal as follows, (seeFigure 3).IMPELLERSPRINGRETAINERSPRINGRETAINERINT

OM−0636110 SERIESMAINTENANCE & REPAIR PAGE E − 9Pump Casing Installation(Figure 2)Install the same thickness of pump casing gaskets(14) as previou

For U.S. and International Warranty Information,Please Visit www.grpumps.com/warrantyor call:U.S.: 419−755−1280International: +1−419−755−1352For Canad

TABLE OF CONTENTSiINTRODUCTION PAGE I − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAFETY - SE

TABLE OF CONTENTS(continued)iiPump End Assy PAGE E − 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 SERIESOM−06361PAGE I − 1INTRODUCTIONINTRODUCTIONThank You for purchasing a Gorman-Rupp pump.Read this manual carefully to learn how to safelyinstal

10 SERIESOM−06361PAGE A − 1SAFETYSAFETY - SECTION AThis information applies to 10 Series en-gine driven pumps. Refer to the manualaccompanying the eng

10 SERIESOM−06361PAGE A − 2 SAFETY5. Vent the pump slowly and cau-tiously.6. Refer to instructions in this manualbefore restarting the pump.Do not ope

10 SERIES OM−06361PAGE B − 1INSTALLATIONINSTALLATION − SECTION BReview all SAFETY information in Section A.Since pump installations are seldom identic

OM−06361 10 SERIESPAGE B − 2 INSTALLATIONPREINSTALLATION INSPECTIONThe pump assembly was inspected and tested be-fore shipment from the factory. Befor