Karcher KB 3.99 M - Manual (Page 7)

English 7
Caution
Never operate the high-pressure cleaner
when the tap is turned off as dry running will
damage the high-pressure pump.
Illustration
Î Connect the high pressure hose to the
high pressure connection of the appli-
ance.
Illustration
Î Push the spray lance into the trigger
gun and fasten it by turning it through
90°.
Illustration
Î Completely open the water tap.
Î Insert the mains plug into the socket.
Illustration
Î Turn on the appliance “I/ON”.
ṇ
Danger
The trigger gun is subjected to a recoil force
when the water jet is discharged. Make
sure that you have a firm footing and are
also holding the trigger gun and spray lance
firmly.
Î Unlock the lever on the trigger gun.
Î Pull on the lever of the trigger gun; the
device will switch on.
Note: Release the lever of the trigger gun;
the device will switch off again. High pres-
sure remains in the system.
Carrying out the most common cleaning
tasks. The work pressure can be stageless-
ly regulated between "Min" and "Max".
Î Release the lever on the trigger gun.
Î Turn the spray lance to the desired po-
sition.
For particularly dirty items or areas.
Not suitable for use with detergents.
We recommend the Kärcher cleaning and
care program that will match the respective
cleaning requirements. Please seek con-
sultation or request information on the sub-
ject.
Î Use spray lance with pressure regula-
tion (Vario Power).
Illustration
Î Turn the spray lance to "Mix" position -
low pressure.
Illustration
Î Pull detergent suction hose as far as is
required out of the housing.
Î Suspend end of detergent suction hose
in a container filled with detergent.
Î Spray the detergent sparingly on the dry
surface and allow it to react, but not to
dry.
Î Spray off loosened dirt with the high-
pressure ray.
Î Release the lever on the trigger gun.
Î Lock the lever on the trigger gun.
Î During longer breaks (more than 5 min-
utes), also turn the appliance off using
the "0/OFF" switch.
Î Insert the trigger gun in its holder.
Start up
Operation
Spray lance with pressure regulation
Spray lance with dirt blaster
Operation with detergent
Recommended cleaning method
Interrupting operation