Manual

BÜCHILabortechnikAG Maintenance|7
UltrasonicController 33/46
7 Maintenance
Allmaintenanceandrepairworkdescribedinthismanualcanbecarriedoutby
theoperator.Allothertasksmustbecarriedoutbytrainedservicepersonnel.
ThereforecontacttheBUCHIcustomerserviceorthesalesrepresentative.
UseonlygenuineBUCHIconsumablesandsparepartsformaintenancetoas
suregooddeviceperformance,reliabilityandsafety.Anymodificationsofspare
partsorassembliesareonlyallowedwiththepriorwrittenpermissionofBUCHI.
7.1 Cleaningthenozzle
NOTICE
Riskofdamagingthenozzle.
Malfunctionofthenozzleresultingininaccurateparticlediameters.
1. Donotattempttodrilloutmaterialhardenedintheliquidfeedpassageof
thenozzle.
2. Donotimmersethenozzleinanultrasoniccleaningbathoranyother
cleaningbath.
1. Ifpossible,flushthenozzlewithanappropriatesolventaftereachuse(for
examplewaterorisopropylalcohol).
2. Priortocleaning,turnthesystemOFFanddisconnecttheinterconnecting
cableandtheliquidfeedtubefromthenozzle.
3. Ifsignificantbuildupofmaterialoccurs,usethefollowingmethodtoclean
thenozzleatomizingsurfaceandtheliquidfeedpassage:
• Theliquidfeedpassagemaybecleanedbyinsertingapipecleaneror
smallroundbrushintothenozzleorificeorliquidfeedtubeattheendof
thenozzle.Forbestresults,makeseveralpassesthroughthenozzle.
• Thenozzletip(atomizingsurface),maybecleanedusingamildscouring
abrasive(suchassteelwoolor“Softscrub”tubandtilecleaner).
7.2 Peristalticpump,adjustment
NOTICE
Riskofliquidsleakingintothehousingorelectricalcomponents.
Devicedamagebyliquidsanddetergentsandcorrosion.
1. Donotspillliquidsoverthedevice.
2. Wipeoffanyliquidsinstantly.
3. Placethedistilledwaterontothedesignatedreservoirplateontopofthe
B290.
Preliminarytasks
1. RemovetheultrasonicnozzlefromtheMiniSprayerB290andplaceit
intoasuitablecontainer.
Tasks
1. Insertthetube(1)intothepumpbed.
2. Putthetube(2)onthesuctionsideintodistilledwater.
3. Closethepumpbedwiththehandle(3).