
4
3.2 Checksquarenessoftheshaftandendshoulderorshaftsleeveif
one is used.
Theendofthesleevethatmateswiththerotatingassembly15
(ortheshaftshoulderifasleeveisnotused)mustbesquareto
within0.076mm(0.003inch)totalindicatorreading.SeeFigure3.
3.3 Enlargethesealcavityopeningorreplacetheappropriatepump
parts as described by the seal assembly drawing.
3.3.1 Somepumpsonlyrequirereplacingthepackedgland
stufngboxwithanew 46 coversuppliedwiththeseal.
Use the appropriate gaskets supplied with the seal because
they may be different than the original gaskets.
3.3.2 Other pumps require machining of the packed gland
stufngbox,orcasing,orrearcasinglinertoallow 46
covertobeattached.Machinepartsasdescribedinthe
seal assembley drawing. Use the appropriate gaskets
suppliedasdescribedin(3.3.1.)above.
3.3.3 Rubber lined pumps may require enlarging the hole in
the center of the inner rubber liner. Cut the liner to the
dimensions shown on the seal assembly drawing.
Useappropriaterubberrepaircompoundtocoverany
metal that is exposed when cutting the rubber liner.
3.4 Assembleandinstall 46 coverormodiedpumppartsasapplicable.
3.4.1 Ifanew 46 coverissupplied,install 139 endplate
(leaving 40 boltslooseatthistime),10 adjustingstud,
101 clampringand9jamnuts.
Note:AstandardO-ringgrooveisincorporatedinthecoverfor3.750
andsmallersizes,and139endplateisnotused.Onsomepumps,
Squareness of the Shaft Figure3
0.07 mm
(0.003 inch)
Maximum
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