Kärcher HWE 4000 Gas, Manual

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You can enter into a maintenance contract with the concerned
Kaercher Sales Office for the machine.
Always store the inspection card at the plant and enter all the
maintenance/service jobs that have been carried out.
Calcium deposits can lead to:
– higher pipe resistances
– poor thermal conductivity values
– even to failure of the components with heavy calcium depos-
its

DANGER
Risk of explosion due to combustible gases! Smoking strictly pro-
hibited during decalcification. Ensure proper ventilation.

DANGER
Risk of burns injury on account of acid! Wear protective glasses
and protective gloves.
According to statutory requirements, only tested and approved
boiler decrusting agents may be used.
– RM 100 (Order No. 6.287-008) dissolves chalk and simple
compounds of chalk and detergents residues.
– RM 101 (Order No. 6.287-013) dissolves the deposits that
cannot be dissolved using RM 100.
 Guide the outlet HWE 4000 through a filter back into the con-
tainer (in case of spray jet operations, the spray pipe can be
inserted into the container without the nozzle).
 Add decalcifying agent to the container; while doing so follow
the concentration recommended by the manufacturer (nor-
mally indicated on the lable).
 Turn the selection switch of the remote control to "Tempera-
ture cold". The thermostat "hot water“ will be deactivated.
 Start the plant and circulate the solution through pumping for
approx. 20 minutes. Ensure that there are no steam bubbles
(do not mix it up with foam!)
 Pump out until the plant is empty.
Note: As an anti-corrosion measure and for neutralising the acid
residue, we recommend that you finally pump an alkaline solution
through the machine (for e.g. RM 81) via the detergent tank.
Note: Follow the local regulations for disposing of the used mix-
ture of the decalcifying agent.
Maintenance contract
Inspection card
Descaling
Performance
35 EN