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1.6 Check shaft or sleeve OD, box bore, box depth, and distance

to the rst obstructiontoensurethattheyaredimensionallythe

sameasshownonthesealassemblydrawing.

1.7 Check gland pilot and bolt holestoensuretheyareadaptable

totheequipmentandarethesameasshownontheassembly

drawing.

1.8 Handle all seal parts with care,theyaremanufacturedtoprecise

tolerances.Thesealfaces;rotatingsealfaceandstationaryseal

faceareofspecialimportance.Thesetwosealingfacesarelapped

attowithinthreelightbands(34.8millionthsofaninch).

Keep the seal faces perfectly clean at all times.

Single Outside Seal Installation

2 Single End Suction Vertical Split Case and Vertical

In-Line Pumps (1 box)

2.1 Lubricate the shaft orsleevelightlywithsiliconelubricant

providedwiththesealbeforeinstallinganysealparts.

2.2 Install the rotating face gasket O-ringintotheboreofthe

rotatingsealface.

2.3 Engage the rotating assembly consistingofthespringholder,

springs,andsealdrivewiththerotatingfacetoformtherotating

assembly.Besureanydrivepinsinthesealdriveengagetheslots

intherotatingface.HandlePTFEU-cupringsandgraphiterotating

facegasketswithextremecare.U-cupringsmustbeassembled

individuallyandnotpushedontheshaftorsleevewhiletheyare

partoftherotatingfaceorrotatingassembly.Avoidnickingor

pinchingeitherlipontheU-cuprings.UsebothU-cuprings,

 theyworktogethertoformaneffectiveseal.

2.4 Install the rotating seal partsspringholderrstontotheshaftor

sleeveinthepropersequencewiththefaceoftherotatingface

facingtheimpeller.Useaslighttwistingmotionforanycomplete

rotaryunitcontainingO-ringrotatingfacegaskets.Placerotating

assemblyunitascloseaspossibletotherstobstruction,usually

theradialbearing.

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