Gorman-rupp-pumps 81 1/2A2-B 253703 and up Bedienungsanleitung

ACE OM-00740-02June 16, 1980Rev. A 09-13-07THE GORMAN-RUPP COMPANY D MANSFIELD, OHIOwww.grpumps.comGORMAN-RUPP OF CANADA LIMITED D ST. THOMAS, ONTARIO

80 SERIES OM−00740PAGE B − 3INSTALLATIONLines near the pump must be independently sup-ported to avoid strain on the pump which couldcause excessive vi

OM−00740 80 SERIESPAGE B − 4 INSTALLATIONNOTEThe pipe submergence required may be reducedby installing a standard pipe increaser fitting at theend of

80 SERIES OM−00740PAGE B − 5INSTALLATIONALIGNMENTThe alignment of the pump and its power source iscritical for trouble-free mechanical operation. Inei

OM−00740 80 SERIESPAGE B − 6 INSTALLATIONthe belts are a matched set; unmatched sets willcause accelerated belt wear.MISALIGNED:SHAFTSNOT PARALLELMISA

80 SERIES OM−00740PAGE B − 7INSTALLATIONer at the measured belt span. Set the small O-ringon the deflection force scale to zero.Place the tension test

OM−00740 80 SERIESPAGE B − 8 INSTALLATIONTable 1. Sheave Diameter (Inches)Deflection Force (Lbs.)CrossSectionSmallestSheaveDiameterRangeR.P.M.RangeUse

OM−0074080 SERIESOPERATION PAGE C − 1OPERATION − SECTION CReview all SAFETY information in Section A.Follow the instructions on all tags, labels andde

OM−0074080 SERIESOPERATIONPAGE C − 2from the shaft and seriously damage thepump.Consult the operating manual furnished with thepower source before att

OM−0074080 SERIESOPERATION PAGE C − 3equipment. If backflushing is absolutely neces-sary, liquid pressure must be limited to 50% of themaximum permiss

OM−0074080 SERIESTROUBLESHOOTING PAGE D − 1TROUBLESHOOTING − SECTION DReview all SAFETY information in Section A.Before attempting to open or service

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

OM−00740 80 SERIESTROUBLESHOOTINGPAGE D − 2TROUBLE POSSIBLE CAUSE PROBABLE REMEDYPUMP STOPS ORFAILS TO DELIVERRATED FLOW ORPRESSURE (cont.)PUMP REQUIR

OM−0074080 SERIESTROUBLESHOOTING PAGE D − 3PREVENTIVE MAINTENANCESince pump applications are seldom identical, andpump wear is directly affected by su

OM−0074080 SERIESMAINTENANCE & REPAIR PAGE E − 1PUMP MAINTENANCE AND REPAIR − SECTION EMAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WIL

80 SERIES OM−00740MAINTENANCE & REPAIR PAGE E − 2SECTION DRAWINGPARTS PAGEFigure 1. Pump Model 81 1/2A2−B

OM−0074080 SERIESMAINTENANCE & REPAIR PAGE E − 3PARTS LISTPump Model 81 1/2A2-B(From S/N 253703 up)If your pump serial number is followed by an N

80 SERIES OM−00740MAINTENANCE & REPAIR PAGE E − 4PUMP AND SEAL DISASSEMBLYAND REASSEMBLYReview all SAFETY information in Section A.Follow the inst

OM−0074080 SERIESMAINTENANCE & REPAIR PAGE E − 5wise until it rests against the cover (see Figure 4) toprevent the grease in the cup from escapin

80 SERIES OM−00740MAINTENANCE & REPAIR PAGE E − 6Remove the slinger ring (12) from the shaft. Re-move the pedestal mounting hardware from thebase.

OM−0074080 SERIESMAINTENANCE & REPAIR PAGE E − 7oil and the container must be absolutely clean. Ifthe oil has been previously used, it must be tho

80 SERIES OM−00740MAINTENANCE & REPAIR PAGE E − 8shorten seal life. If necessary, clean the faces with anon-oil based solvent and a clean, lint-fr

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

OM−0074080 SERIESMAINTENANCE & REPAIR PAGE E − 9Slide the seal plate assembly over the impellershaft (17) and temporarily secure the seal plate to

80 SERIES OM−00740MAINTENANCE & REPAIR PAGE E − 10compound to the fill plug (33). Reinstall and tightenthe fill plug.Refer to OPERATION, Section C

OM−0074080 SERIESMAINTENANCE & REPAIR PAGE E − 11ously or installed in an environment where variablehot and cold temperatures are common.When lubr

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 CONTENTS(continued)iiPUMP MAINTENANCE AND REPAIR - SECTION E PAGE E − 1. . . . . . . . . . . . . . . . . STANDARD PERFORMANCE CURVE PAGE E −

80 SERIESOM−00740PAGE I − 1INTRODUCTIONINTRODUCTIONThank You for purchasing a Gorman-Rupp pump.Read this manual carefully to learn how to safelyinstal

80 SERIESOM−00740PAGE A − 1SAFETYSAFETY - SECTION AThis information applies to 80 Series ba-sic pumps. Gorman-Rupp has no con-trol over or particular

80 SERIESOM−00740PAGE A − 2 SAFETYOverheated pumps can cause severeburns and injuries. If overheating of thepump occurs:1. Stop the pump immediately.2

80 SERIES OM−00740PAGE B − 1INSTALLATIONINSTALLATION − SECTION BReview all SAFETY information in Section A.Since pump installations are seldom identic

OM−00740 80 SERIESPAGE B − 2 INSTALLATIONOnly operate this pump in the direction in-dicated by the arrow on the pump bodyand on the accompanying decal