21
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.
Opentheredoilllerplugatthetopsideofthe
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.Rellwithnewoil.
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.
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