Safety Devices; Start Up; Water Connection - Kärcher HD 728 B Cage Manual

Please follow the national rules and
–
regulations for fuel spray jets of the re-
spective country.
Please follow the national rules and
–
regulations for accident prevention of
the respective country. Fuel spray jets
must be tested regularly and the results
of these tests must be documented in
writing.

Safety Devices

Safety devices serve to protect the user
and must not be rendered in operational or
their functions bypassed.
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.

Start up

Danger
Risk of injury! Device, tubes, high pressure
hose and connections must be in faultless
condition. Otherwise, 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).
14
General
pump
Follow the instructions given in the sec-
tion "Safety Notes"!
 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.
Attaching the Accessories
 Mount the nozzle on the spray pipe (mark-
ings on the adjustment ring at the top).
 Connect ray tube to hand spray 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 the applicable regula-
tions, the appliance must never be
used on the drinking water supply
without a system separator. Use a
suitable system separator manufactured by
KÄRCHER; or, as an alternative, a system
separator as per EN 12729 Type BA. Water
flowing through a system separator is con-
sidered non-drinkable.
– 3
EN
Motor