Start Up; Attaching The Accessories; Water Connection - Kärcher HD 728 B Cage Originalbetriebsanleitung

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 thermostat at the pump
The safety thermostat switches off the mo-
tor when the maximum permissible temper-
ature has been exceeded.
DANGER
Risk of injury! Device, tubes, high pressure
hose and connections must be in faultless
condition. If they are not in a perfect state
then the appliance must not be used.
Check oil level of the high pressure
 Check oil level in the oil tank.
The oil level must lie between "MIN"
and "MAX" marking.
 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.
 Fill the fuel tank with unleaded petrol.
Do not use 2-speed mixture.
 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.
14

Start up

pump
Motor

Attaching the Accessories

 Mount the nozzle on the spray lance
(markings on the adjustment ring at the
top).
 Connect spray lance to trigger gun.
 Lever out the safety clip of the hand spray
gun using a screw-driver (Picture A).
 Place the hand-spray gun upside down
and insert the end of the high pressure
hose till the end. Ensure that the lose
disc falls right below on the hose end
(Picture B).
 Press the safety clip back into the hand-
spray gun. The hose can be pulled out
max. 1 mm if it has been installed cor-
rectly. Otherwise, it means the disc has
been installed wrongly (picture C).
 Connect the high pressure hose to the
high pressure connection point of the
machine.

Water connection

– For connection values refer to technical
specifications
WARNING
Observe regulations of water supplier.
According to applicable regula-
tions, the appliance must never be
used on the drinking water net
without a system separator. A suit-
able system separator by KÄRCHER or al-
ternatively a system separator according to
EN 12729 type BA must be used.
Water that was flowing through a system
separator is considered non-drinkable.
CAUTION
Always connect the system separator to
the water supply, never directly to the appli-
ance!
 Connect the supply hose to the water
connection point of the machine and at
the water supply point (for e.g. a tap).
 Open the water supply.
Note:
The supply hose is not included.
– 3
EN