
RevA MN301200 9of10
MAINTENANCE StepSix
Maintenanceshouldconsistofinspectiontoseethatthesumpfloatisfreetomoveandnotcoatedwithany
substance, which would change its weight or volume significantly.If this occurs, the sump float should be
cleaned.Thisiseasilyaccomplishedwithoutdisturbingtheinstallation.Dentsornicksonthefloatareusually
ofnoconsequencetooperation.
Cleaningprocedure:
1. Power:Make sure that all power to the sump float, controller and/or power supply is completely
disconnected.
2. Floatremoval:Ifnecessary,makesurethatthetankisdrainedwellbelowthefloatpriortoremoval.
Carefully,removethefloatfromtheinstallation.
3. Cleaningthefloat:Usingasoftbristlebrushandmild detergent,carefullywashtheswitch.Donotuse
harshabrasivessuch as steelwool orsandpaper,which might damagethe surface of thesensor.Do
notuseincompatiblesolvents,whichmaydamagethesensor'sPPbodyorPVCcable.Takeparticular
caretoremove
anyscalingfromthefloatbodyandmakesurethatitisfreetomove.
4. Floatinstallation:FollowtheappropriatestepsofinstallationasoutlinedintheInstallationsectionof
thismanual.
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