Before Startup - Kärcher WU 90/72 Handbuch

Use a coin to open the cover for battery compartment.
Insert a 9V battery (type 6LR61 / Alkaline).
All symbols on the display will illuminate for 1 second, the irriga-
tion device is now ready to be programmed.
Close the battery compartment cover.
Screw the coupling element onto the hose connection.
Slide the latch down to unlock the swivel mechanism.
Hold the irrigation device to the casing and screw the water con-
nection onto the water tap.
Caution
Never connect the irrigation device to the water tap without using the
supplied filter gasket.
For an optimal attachment of the irrigation device, slide the latch
upwards to lock the swiveling mechanism and carefully rotate the
irrigation device approx. 1/4 turn.
Note: Do not overtighten.
Slide the latch down to unlock the swivel mechanism and align
the irrigation device.
Note: Align the irrigation device so that the control panel can be
accessed comfortably.
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Before Startup