Millipore WP61 115 60 - Maintenance

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Maintenance
Undernormaloperatingconditions,andusingproperhandlingprocedures,thechemicaldutyvacuum/pressurepumpshouldprovidemanyhoursoftrouble-
freeoperation.
Milliporedryvacuum/pressurepumpsare100oil-free.Thepumpemploysanon-lubepistonandcylinder.Nomaintenanceisnecessaryforthebearings.
Allbearingsaresealedandpermanentlylubricated.Lubricationshouldnotbeattempted.Theunitsarebuiltforcontinuousdutyoperationwithquietness
anddurability.
CAUTION: Donotlubricateanyofthepartswithoil,greaseorpetroleumproducts.Donotcleanwithacids,causticsorchlorinatedsolvents.Donot
replacetheconnectingrodormotorbearings.
RelacingtheDiahragm
1. Unscrewthefoursocket-capscrewsfromthepumpheadandunscrew
thetwoscrewsfromthepumphandle.Removethepumpheadas-
semblyfromthetopofthepump.
2. Unscrewthefourhillips-headscrews,thenremovetheretainer
plate,thediaphragmliner,andthediaphragm.
3. Replacethediaphragm(thenumberprintedonitshouldbefacing
up,aligningtheholesinthediaphragmwiththescrewholesinthe
topofthepump.
4. Replacethediaphragmliner,liningupholesinthelinerwiththe
screwholesinthetopofthepump.
5. Replacetheretainerplate,aligningthefoursmallholeswiththe
screwholesandorientingthelargeholetotheleftasshown.
Replaceandtightenthehillips-headscrews.
CAUTION: Ta k e c a r e  n o t  t o n i c k  t h e  h e ad s  o f  t h e  s c r e w s  b ur rs  c a n 
damagetheinletvalve.
6. Replacethepumpheadassemblyandtightenthesixscrewstohold
itinplace.
diaphragmliner
diaphragm
retainer platelarge hole
pumpheadassembly
DOMINIQUE DUTSCHER SAS