Service Switch; Setting Up Water Hardness; Service Position - Kärcher HDS-E 8/16-4 M Series Service Manual

5.4 Service switch

1 Service switch
2 Arrow
3 "OFF" position

4 Service position

5 SET position

5.4.1 Setting up water hardness

The water hardness must be set at the site to be able
to correctly meter the system care (RM 110/RM 111).

Determining the hardness of tap water:
Through the public water supply works.
–
Measure the water using the water hardness test-
–
ing set, order no. 6.768-004.0.

Set the service switch according to the water hard-
ness in the table.
Degree of Water hard-
hardness ness [°dH]
very soft <3
soft 3,1...7,0
medium 7,1...14
hard 14,1...21,0
very hard >21,0
5.4.2 Service position
All device settings can be modified using the service
setting. This function is described in the chapter
"Service functions".
20
English 5.906-548.0 Rev. 00 (04/12)
Service switch
setting
OFF
1
2
3
4