Kärcher HD 7/20 G Classic, Manual

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7
Safety instructions
It is essential that you read the safety instructions
before initial start-up.
Observe the national regulations for liquid jet
cleaners.
.
Observe the national accident prevention regula-
tions. Liquid jet cleaners must be tested regularly.
The test result must be recorded in writing.
Do not modify the device or accessories.
DANGER
Do not operate the device if fuel has been spilled. In
such a case, move the device to another location and
avoid any sparking.
Do not store fuel in the proximity of naked flames or
devices such as ovens, heating boilers, water heat-
ers, etc. that have a pilot light or may generate
sparks. Do not use or spill fuel in the above environ-
ment.
Keep easily flammable objects at least 2 m away from
the muffler.
Do not operate the device without a muffler. Check
the muffler regularly and clean or replace it if neces-
sary.
Do not operate the device in forests, bushy or grassy
areas if the exhaust pipe is not equipped with a spark
catcher.
Do not run the motor with the air filter removed or
without a cover over the intake opening.
Do not adjust any control springs, governor control
linkage or other parts that could increase the speed of
the motor.
Do not touch any hot parts such as the muffler, cylin-
der or cooling fins.
Never bring your hands and feet close to rotating
parts.
Never operate the device in confined spaces.
Do not use unsuitable fuels as they can be danger-
ous.
Safety devices
CAUTION
Missing or modified safety devices
Safety devices are provided for your own protection.
Never modify or bypass safety devices.
Safety lever
The safety lever on the high-pressure gun prevents the
device from being switched on inadvertently.
Overflow valve
If the high-pressure gun is closed, the overflow valve
opens and the entire water volume will flow back to the
pump suction side.
The overflow valve is set by the manufacturer and
sealed. Setting shall only be carried out by Customer
Service.
Safety valve
The safety valve opens if the pressure relief valve is
faulty.
The safety valve is set and sealed at the factory. The ad-
justment is made by Customer Service.
Thermostat valve on the pump
The thermostat valve opens when the maximum per-
missible water temperature is exceeded and discharges
the hot water outdoors.
Device description
Illustration A
1
Fuel tank
2
Starter rope (device for manual start)
3
Fuel valve
4
Push handle
5
High-pressure gun storage clip
6
Oil level indicator
7
Oil fill screw (pump)
8
Oil drain screw (pump)
9
Oil dip (engine)
10
Engine switch
11
High-pressure connection
12
Water connection with filter
13
Hose holder
14
Nozzle screws
15
High-pressure nozzle
16
Spray lance
17
High-pressure gun
18
Lever for high-pressure gun
19
High-pressure hose
Colour coding
Control elements for the cleaning process are yel-
low.
Initial start-up
DANGER
Risk of injury!
Device, tubes, high-pressure hose and connections
must be in faultless condition.
Otherwise, the device must not be used.
Flammable
No smoking is allowed.
Fires, sparks, open flames and smoking are
prohibited.
Observe notes in the instructions for the bat-
tery, on the battery and in these operating in-
structions.
Warning