Manual

24
Changing the oil:
Firstoilchangeafterapproximately
50 operating hours.Thereaftertheoil
shouldbechangedevery500operating
hoursoryearly.
Taketheoildrainagehose,whichis 
connectedtotheoildrainagescrewfromthe
insideoftheappliance. 
Opentheredoilllerplugatthetopsideofthe
blackoilhousing.
Openthecapattheendofthehose.
Drainofftheoilintoanoilpananddispo-
seofitresponsibly.Closetheendofthe
hose.Rellwithnewoil.
therm 635-1 - 875-1: 0,8 l - 10 W 60
therm 895-1 - 1525-1: 1,0 l - 10 W 60
Decalcifying the heating coil:
Calcifiedmachinesuseanunnecessaryamountofenergybecausethewatercanonly
beheatedslowlyandtheexcesspressurevalvefeedsapartofthewaterbackintothe
pumpcircuit.
Calcified machines can be recognised by increased pipeline resistance.
Checkpipelineresistancebydisconnectingthehighpressurelancefromthegunand
switchingthemachineon.Afulljetofwateremergesfromthegun.Themachinemustbe
decalcifiedifthepressureshownonthemanometerisgreaterthan25 bar.
Proceed as follows to decalcify the machine:
1. Unscrewthehighpressurehosefromthemachineanddecalcifyitseparately.
2. Putthedetergentsuctionhoseintoacontainerofdecalcifyingsolution.
3. Setthedispenservalvetothemaximumconcentration.
4. Switchonthemachine.