Safety Devices; Pressure Switch; Start Up - Kärcher HDS 801 B Originalbetriebsanleitung

– Check the high-pressure hose daily.
Do not use hoses with kinks.
Stop using the high-pressure hose if the
external wire layer is visible.
– Do not use the high-pressure hose any-
more if the winding is damaged.
– Lay the high-pressure hoses in such a
way that no vehicle can drive over it.
– Do not use high-pressure hoses that
have been driven over, kinked, pressed
or bent even if there is no externally vis-
ible damage.
– Store the high-pressure hoses in such a
way that they are not subject to any me-
chanical load.

Safety Devices

Safety devices serve for the protection of
the user and must not be put out of opera-
tion or bypassed with respect to their func-
tion.
Water shortage safeguard
The safety mechanism against lack of water
prevents the heater from over-heating when
there is no water. The burner operates only
when there is adequate water supply.
Overflow valve
– If the hand spray gun is closed, the
overflow valve opens and the high pres-
sure pump diverts the water back to the
pump suction side. Thus the permissi-
ble working pressure is not exceeded.
– The overflow valve is set by the manu-
facturer and sealed. Setting only by
customer service.
Safety valve
– The safety valve opens when the over-
flow valve is defective.
– The safety valve is set by the manufac-
turer and sealed. Setting only by cus-
tomer service.
Thermo-valve at the pump
The thermo-valve opens when the permis-
sible water temperature is exceeded and
lets out the hot water into the open.
18

Pressure switch

The pressure switch switches off the burner
when the working pressure falls below the
minimum value and switches it on again
when it is exceeded.
The safety catch on the trigger gun pre-
vents the appliance from being switched on
unintentionally.
WARNING
Risk of injury! Appliance, accessories, sup-
ply lines and connections must be in fault-
free condition. If they are not in a perfect
state then the appliance must not be used.
Check oil level of the high pressure
ATTENTION
Risk of damage! In case of lacteous oil in-
form Kärcher customer service immediate-
ly.
 Before using for the first time, cut off the
tip of the lid of the oil tank on the water
pump.
 Check oil level in the oil tank.
Do not operate the appliance if the oil level
has fallen below "MIN".
 Add oil if required (see technical speci-
fications).
Follow the instructions given in the sec-
tion "Safety Instructions"!
 Read the operating instructions of the
engine manufacturer before start-up
and follow the safety instructions care-
fully.
 Check oil level of the engine.
Do not operate the appliance if the oil level
has fallen below "MIN".
 If required, top up oil carefully.
 Fill the fuel tank with unleaded petrol.
Do not use 2-speed mixture.
– 4
EN
Safety catch

Start up

pump
Motor