Interrupting Operation; Maintenance And Care - Kärcher K 3.91 M Mode D'emploi

Connect the high pressure hose to the high
pressure connection of the appliance.
Push the spray lance into the trigger gun and
fasten it by turning it through 90°.
Completely open the water tap.
Insert the mains plug into the socket.
Turn on the appliance "I/ON".
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.
Unlock the lever on the trigger gun.
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 pressure re-
mains in the system.
Spray lance with pressure regulation
Carrying out the most common cleaning tasks.
The work pressure can be stagelessly regulated
between "Min" and "Max".
Release the lever on the trigger gun.
Turn the spray lance to the desired position.
Spray lance with Dirtblaster
For particularly dirty items or areas.
Not suitable for use with detergents.
Washing brush
Suitable for use with detergents.
Working with detergent
Please use exclusively KÄRCHER detergents
and care products to carry out the respective
cleaning task, as these were specifically devel-
opped for your appliance. The use of other deter-
gents and care products may lead to premature
wear and can invalidate your warranty claims.
Please obtain information at your local dealer or
request information directly from KÄRCHER.
Fill the detergent solution in the detergent
tank (observe dosage instructions on the
packaging of the detergent).
Use spray lance with pressure regulation
(Vario Power).
Turn the spray lance to "Mix" position.
Note: This will mix the detergent with the wa-
ter stream.
Recommended cleaning method
Spray the detergent sparingly on the dry sur-
12 English
6
Deutsch
Operation
face and allow it to react, but not to dry.
Spray off loosened dirt with the high-pres-
sure jet.

Interrupting operation

Release the lever on the trigger gun.
Lock the lever on the trigger gun.
During longer breaks (more than 5 minutes),
also turn the appliance off using the "0/OFF"
switch.
Insert the trigger gun in its holder.
Finish operation
Caution
Only separate the high-pressure hose from the
trigger gun or the appliance while there is no
pressure in the system.
After working with detergent, suspend deter-
gent suction hose in a container filled with clear
water, switch the appliance on for around 1
minute once the spray lance has been re-
moved and rinse until water runs clear.
Release the lever on the trigger gun.
Turn off the appliance "0/OFF".
Turn off tap.
Detach the appliance from the water supply.
Press the lever on the trigger gun to release
any remaining pressure in the system.
Lock the lever on the trigger gun.
Pull out the mains plug.
Insert the trigger gun in its holder.
Stow away the mains cable, the high-pres-
sure hose and accessory at the appliance.

Maintenance and care

Danger
Turn off the appliance and remove the mains
plug prior to any care and maintenance work.
Maintenance
The appliance is maintenance-free.
Storage
Prior to longer periods of storage, e.g. in the win-
ter:
Completely drain all water from the appli-
ance: Switch the appliance on with detached
high-pressure hose and detached water sup-
ply (max. 1 minute) and wait, until no more
water exits at the high-pressure connection.
Turn off the appliance.