Alfa Laval ALS - Replacement of Shaft Seal, Type S3

5Maintenance
Formaintenanceinstructionsfromsuppliers,seechapter8Appendix.Always Always
Always
ensurethatmountingisaccordingtochapter6
Technicaldata.Ensuretotallycleansurfacesduringmounting-alsoremoveremainingloctiteresidueonthreads.Always Always
Always
refer
totighteningtorquesinchapter6Technicaldata.
5.14Replacementofshaftseal,typeS3
NOTE NOTE
NOTE
Toreplacesealseasier,usedetergent.
Ensuresubsequenttosealreplacement,thatallsealfacesaretotallyclean,usingalcohol.
Ifpossible,always always
always
dismantletheAgitatorfromthetankbeforedismountinganyparts.
Theseal(seechapter2.3Intendeduse)isdesignedfordryrunning,soawhiningnoiseduringoperationisquitenormal.
Positionsreferredtoinfollowinginstructionscanbeseenintheaboveillustration.
Step Step
Step
1 1
1
1.DismantleAgitatorfromweldingflange.
2.LiftupAgitator
Step Step
Step
2 2
2
1.Loosenpointedscrews(1),securingrotarysealhousingonto
theshaft.
2.Movethesealhousing,includingrotarysealpart,bypullingit
carefullyalongtheshaft,avoidingcontact.
NOTE NOTE
NOTE
Usemilddetergenttoreducefriction.
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