Maintenance
Pump Pump
Pump
Lubrication Lubrication
Lubrication
System System
System
ChecktheconditionoftheISOpumplubricantdaily.
Changethelubricantifitbecomesagel,itscolor
darkens,oritbecomesdilutedwithisocyanate.
Gelformationisduetomoistureabsorptionbythe
pumplubricant.Theintervalbetweenchanges
dependsontheenvironmentinwhichtheequipment
isoperating.Thepumplubricationsystemminimizes
exposuretomoisture,butsomecontaminationisstill
possible.
Lubricantdiscolorationisduetocontinualseepageof
smallamountsofisocyanatepastthepumppackings
duringoperation.Ifthepackingsareoperating
properly,lubricantreplacementduetodiscoloration
shouldnotbenecessarymoreoftenthanevery3or
4weeks.
Tochangepumplubricant:
1.FollowPressureReliefProcedure,page57.
2.Liftthelubricantreservoir(R)outofthebracket
andremovethecontainerfromthecap.Holding
thecapoverasuitablecontainer,removethe
checkvalveandallowthelubricanttodrain.
Reattachthecheckvalvetotheinlethose.
3.Drainthereservoirandushitwithclean
lubricant.
4.Whenthereservoirisushedclean,llwithfresh
lubricant.
5.Threadthereservoirontothecapassemblyand
placeitinthebracket.
6.Thelubricationsystemisreadyforoperation.No
primingisrequired.
PumpLubricationSystem
Figure16
333023M61
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