Alto Wap DX 840 Manual de Instruções - Página 14

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SC 710 W / SC 740 W / SC 780

DX 840 W / DX 860 / DX 900 / DX 980 / TitanPlus

priate protective clothing (e.g.

gloves, face mask, apron).

Only approved scale removers

may be used for descaling.

Use Wap Anti-Scale, No. 8326

With regular use of Wap Anti-

Scale, descaling will normally

not be necessary.

Incorrect operation of the machi-

ne or the use of non-approved

cleaning agents can cause

deposits in the pipework system.

Scaling is caused by the water

hardness and is indicated by a

gradual increase in the water

pressure displayed on the pressu-

re gauge.

If the working pressure is excee-

ded by 10 bar (with the Vario-

Press trigger gun open), the

system must be descaled.

Procedure:

• Unscrew the high-pressure

nozzle from the spray lance

and place separately in the

Wap scale remover.

• Draw in Wap scale remover

via the metering valve by

hanging a cleaning agent

hose into the scale remover

bottle and setting the mete-

ring valve to maximum

concentration.

• Hold the spray lance in a

separate container to collect

the discharged liquid.

• Switch on the high-pressure

pump.

• Actuate the trigger gun. Wap

scale remover is drawn in and

emerges from the spray lance

foaming vigorously after

approx. 1 minute.

• Switch off the high-pressure

pump and allow the scale

remover to work for approx.

15 minutes.

• Flush out the pump system

well with clean water.

• After approx. 2 minutes, a

steady jet of water must

emerge at the water outlet

tube. If this is not the case,

repeat the descaling procedu-

re.

• Screw the high-pressure

nozzle onto the spray lance.

FROST PROTECTION

If the high-pressure cleaner is

stored in a room in which tempe-

ratures of below 0° C can occur,

antifreeze must first be flushed

through the pump.

During the flushing process,

actuate the trigger gun 2 or 3

times.

In order to avoid any risk, the

machine should preferably be

stored for a short period in a

heated room before it is put into

service again.

Option / model variants