After Operation With Detergent; Turn Off The Appliance; Storing The Appliance; Frost Protection - Kärcher HDS 7/9-4 M Manual Del Usuario

Operating with steam
Danger
Scalding danger! The operating pressure
must not exceed 3,2 MPa (32 bar) when
operating with temperatures above 98 °C.
Therefore the following measures must
definitely be performed:
 Replace high pressure nozzle (stain-
less steel) with steam nozzle (brass,
order see specification).
 Open up the pressure/ quantity regula-
tor on the hand spray gun completely,
direction + until stop.
 Set the operating pressure on the pump
unit to the minimum value.
 Set temperature regulator to min. 100 °C.

After operation with detergent

 Set dosing value for detergent to "0".
 Set the appliance switch to "1" (opera-
tion with cold water).
 Open the hand spray gun and rinse the
appliance for at least 1 minute.

Turn off the appliance

Danger
Danger of scalding by hot water. After the
operation with hot water or steam, the de-
vice must be operated with openend gun
with cold water for at least two minutes.
 Set the appliance switch to "0/OFF".
 Shut off water supply.
 Turn on pump shortly (appr. 5 seconds)
with device switch.
 Pull main plug out of socket with dry
hands only.
 Remove water connection.
 Activate hand spray gun until device is
pressure less.
 Lock the trigger gun.
32

Storing the Appliance

 Lock in the steel pipe into the holder of
the appliance hood.
 Roll up high pressure hose and electri-
cal conduit and hang them into the re-
spective holders.
Device with hose drum:
 Before rolling up, stretch out the high
pressure hose.
 Turn the hand crank clockwise (Direc-
tion of the arrow).
Note: Do not twist high pressure hose and
electrical conduit.

Frost protection

Caution
Frost will destroy the not completely water
drained device.
 Store in a frost free area.
If the device is connected to a chimney, the
following must be observed:
Caution
Threat of damage by penetrating cold air
through the chimney.
 Disconnect device from chimney when
outside temperature drops below 0 °C.
If it is not possible to store frost free, shut
down device.
For longer work breaks or if a frost free stor-
age is not possible:
 Drain water.
 Flush device with anti-freeze agent.
 Empty detergent tank.
Dump water
 Screw off water supply hose and high
pressure hose.
 Screw off supply hose at boiler bottom
and drain heating spiral empty.
 Operate device for max. 1 minute until
the pump and conduits are empty.
– 8
EN
Shutdown