Kärcher HD 4/9 C Instructions Manual page 8

to increased wear and tear or forma-
tion of deposits in the appliance.
If recycled water is used, the following
limit values must not be exceeded.
pH value
electrical conductivity * Conductivity
settleable solids **
total suspended solids
***
Hydrocarbons
Chloride
Sulphate
Calcium
Total hardness
Iron
Manganese
Copper
Active chloride
free of bad odours
* Maximum total 2000 μS/cm
** Test volume 1 l, settling time 30 min
*** no abrasive substances
Safety Devices
Safety devices serve for the protection
of the user and must not be put out of
operation or bypassed with respect to
their function.
Pressure switch
If the pulling lever on the trigger gun is
released the pressure switch turns off
the pump, the high-pressure jet is
stopped. If the pulling lever is pulled
the pump is turned on again.
8
6,5...9,5
fresh water
+1200 μS/
cm
< 0,5 mg/l
< 50 mg/l
< 20 mg/l
< 300 mg/l
< 240 mg/l
< 200 mg/l
< 28 °dH
< 50 °TH
< 500 ppm
(mg CaCO /
3
l)
< 0,5 mg/l
< 0,05 mg/l
< 2 mg/l
< 0,3 mg/l
– 5
EN
Environmental protection
The packaging material can
be recycled. Please do not
throw the packaging material
into household waste;
please send it for recycling.
Old appliances contain valu-
able materials that can be re-
cycled; these should be sent
for recycling. Batteries, oil,
and similar substances must
not enter the environment.
Please dispose of your old
appliances using appropriate
collection systems.
Electrical and electronic devices often
contain components which could po-
tentially pose a danger to human
health and the environment if handled
or disposed of incorrectly. However,
these components are necessary for
the proper operation of the device. De-
vices marked with this symbol must not
be disposed of with regular household
rubbish.
Notes about the ingredients
(REACH)
You will find current information about
the ingredients at:
www.kaercher.com/REACH
Before Startup
Attaching the Accessories
Attach the wheel caps.

Note: The EASY!Lock system joins
components with a quick-fasten thread
solidly and securely with just one turn.