Working With Detergent - Kärcher K 3.550 Operating Instructions Manual

 Switch the appliance on (I/ON) for a
max. of 2 minutes and wait until the wa-
ter exits the high-pressure connection
without bubbles.
 Turn off the appliance "0/OFF".
Start up
Caution
Dry runs lasting longer than two minutes
lead to damages to the high pressure
pump. If the appliance does not build up
pressure within two minutes, switch it off
and proceed as instructed in the Chapter
"Troubleshooting".
 Illustration
Insert the high pressure hose tightly into
the quick coupling on the appliance, it
will lock in audibly.
Note: Make sure the connection nipple
is aligned correctly.
Check the secure connection by pulling
on the high pressure hose.
 Illustration
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".
Operation
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.
Caution
Prior to cleaning, make sure that the high
pressure is placed safely on level ground.
Wear protective goggles and protective
clothing during the cleaning process.
 Illustration
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 pres-
sure remains in the system.
Spray lance with pressure regulation
Carrying out the most common cleaning
tasks. The work pressure can be infinitely
regulated between "Min" and "Max".
 Release the lever on the trigger gun.
 Turn the spray lance to the desired po-
sition.
Note: Suitable for working with detergent;
for this, turn the spray lance to the "Mix" po-
sition.
Spray lance with Dirtblaster
For particularly dirty items or areas.
Caution
Car tyres, paint or sensitive surfaces such
as wood should not be cleaned with the dirt
blaster, as there is a risk of damage.
Not suitable for use with detergents.
–
Washing brush
Suitable for use with detergents.

Working with detergent

Please use exclusively KÄRCHER deter-
gents and care products to carry out the re-
spective cleaning task, as these were
specifically developed for your appliance.
The use of other detergents and care prod-
ucts may lead to premature wear and can
invalidate your warranty claims. Please ob-
tain information at your local dealer or re-
quest information directly from KÄRCHER.
Notes regarding the detergent: The most
commonly used KÄRCHER detergents can
be purchased ready to use in their Plug 'n'
Clean detergent bottles with locking lids.
This will make the pesky refilling and filling
processes redundant.
 Illustration
Remove the lid from the Plug 'n' Clean
detergent bottle and press the deter-
gent bottle into the detergent connec-
tion with the opening facing down.
 Illustration
Adjust the suction volume of the deter-
gent solution by means of the dosage
regulator for detergents.
 Use spray lance with pressure regula-
tion (Vario Power).
 Turn the spray lance to "Mix" position.
Note: This will mix the detergent with
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