K 6.450
Operating Instructions
Before first use of the unit
read these operating instructions
and act in accordance with them.
Register and win!
59639200 10/10
Description of the Appliance
1
2
3
4
5
6
7
8
9
Coupling element for water connection
12 Storage hook for mains connection cable
13 Mains cable with mains plug
14 Detergent reservoir with locking lid
15 Wheels
16 Trigger gun
17 Lock trigger gun
18 Key to detach the high-pressure hose
from the trigger gun
19 Washing brush
Water connection with integrated sieve
Appliance switch "0/OFF“/ „I/ON“
High pressure hose
Dosage regulator for detergent
Storage for trigger gun
High-pressure hose drum
Transport handle
Hand crank for hose drum
10 Storage of detergent reservoir with de-
tergent connection
11 Storage for accessories
20 Spray lance with Dirtblaster
21 Spray lance with pressure regulation
(Vario Power)
English 3
oil. The spray mist thus generated is
highly inflammable, explosive and poi-
sonous. Do not use acetone, undiluted
acids and solvents as they are damag-
ing to the materials from which the ap-
pliance is made.
Safety instructions
ƽ Danger
„ Never touch the mains plug and the
socket with wet hands.
„ The appliance must not be used if the
power cord or important parts of the ap-
pliance, e.g. high-pressure hoses, trig-
ger gun or safety devices are damaged.
„ Check the power cord and mains plug
for damage before every use. If the
power cord is damaged, please arrange
for it to be replaced immediately by an
authorised repair agent or a skilled
electrician
„ Check the high-pressure hose for dam-
age before every use. Please arrange
for the immediate replacement of a
damaged high-pressure hose.
„ The appliance may not be used in areas
where a risk of explosion is present.
„ If the appliance is used in hazardous ar-
eas (e.g. filling stations) the corre-
sponding safety provisions must be
observed.
ṇ Warning
„ The mains plug and the coupling of an
extension cable must be watertight and
must never lay in the water.
„ Unsuitable extension cables can be
hazardous. Only use extension cables
outdoors which have been approved for
this purpose and labelled with a suffi-
cient cable cross-section:
1 - 10 m: 1.5 mm2; 10 - 30 m: 2.5 mm2
„ Always fully unroll electrical cables from
the cable drum.
„ High-pressure hoses, fixtures and cou-
plings are important for the safety of the
appliance. Only use high-pressure hos-
es, fixtures and couplings recommend-
ed by the manufacturer.
„ This appliance is not intended for use
by persons with reduced physical, sen-
sory or mental capabilities.
„ High-pressure jets can be dangerous if
improperly used. The jet must not be di-
rected at persons, animals, live electri-
cal equipment or at the appliance itself.
„ The high-pressure jet must not be di-
rected at other persons or directed by
the user at him/herself to clean clothing
or footwear.
The appliance must not be operated by
children or persons who have not been
instructed accordingly.
Children should be supervised to pre-
vent them from playing with the appli-
ance.
„ The operator must use the appliance
correctly. When working with the appli-
ance, he must consider the local condi-
tions and pay due care and attention to
other persons, in particular children,
who are nearby.
„ Do not use the appliance when there
are other persons around unless they
are also wearing safety equipment.
„ Wear protective clothing and safety
goggles to protect against splash back
containing water or dirt.
„ Never use the appliance to clean ob-
jects containing hazardous substances
(e.g. asbestos).
„ Vehicle tyres or tyre valves are suscep-
tible to damage from the high-pressure
jet and may burst. The first indication of
this is a discolouration of the tyre. Dam-
aged vehicle tyres/tyre valves are high-
ly dangerous. Ensure that a distance of
at least 30 cm is observed when clean-
ing with the jet!
„ Risk of explosion!
Do not spray flammable liquids.
Never draw in fluids containing solvents
or undiluted acids and solvents! This in-
cludes petrol, paint thinner and heating
4 English
Caution
Safety Devices
„ In case of extended downtimes, switch
the appliance off at the main switch / ap-
pliance switch or remove the mains
plug.
Caution
Safety devices protect the user and must
not be modified or bypassed.
„ Do not operate the appliance at temper-
atures below 0 °C.
Power switch
The appliance switch prevents unintention-
„ Observe a distance of at least 30 cm
when using the jet to clean painted sur-
faces to avoid damaging paintwork.
„ Never leave the appliance unattended
when it is in operation.
al operation of the appliance.
Lock trigger gun
This lock locks the lever of the trigger gun
and prevents the inadvertent start of the ap-
pliance.
„ Make sure that the power cable or ex-
tension cables are not damaged by run-
ning over, pinching, dragging or similar.
Protect the power cable from heat, oil,
and sharp edges.
„ All current-conducting parts in the work-
ing area must be protected against jet
water.
Overflow valve with pressure switch
The overflow valve prevents the permissi-
ble working pressure from being exceeded.
If the lever on the trigger gun is released
the pressure switch turns off the pump, the
high-pressure jet is stopped. If the lever is
pulled the pump is turned on again.
Prerequisites for the appliance's
stability
„ The appliance may only be connected
to an electrical supply which has been
installed in accordance with IEC 60364.
„ The appliance may only be connected
to alternating current. The voltage must
correspond with the type plate on the
appliance.
„ For safety reasons, we recommend that
you operate the appliance only via a
earth-leakage circuit breaker (max.
30 mA).
Caution
Create stability for the appliance prior to all
work on or with the appliance to prevent ac-
cidents or damage.
–
The stability of the appliance is warrant-
ed when it is placed onto an even sur-
face.
„ Cleaning operations which produce oily
waste water, e.g. engine washes, un-
derbody washes, may only be carried
out using washing stations equipped
with an oil separator.
„ This appliance was designed to be
used with detergents which are sup-
plied or recommended by the manufac-
turer. The use of other detergents or
chemicals may compromise the safety
of the appliance.
English 5
Note: Make sure the connection nipple
is aligned correctly.
Operation
Î Illustrations on Page 12
Check the secure connection by pulling
on the high pressure hose.
Before Startup
Water supply
Mount loose parts delivered with appliance
prior to start-up.
Install the storage for hand-spray gun
Illustration
Î Place the bottom holder into the recess-
es and push forward until it audibly
locks in.
ṇ Warning
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.
Illustration
Î Insert the top holder and push down all
the way.
Install the storage hook for the mains
connection cable
Illustration
Î Install the top storage hook.
Install the dosage regulator for detergent
You will need the 2 included screws as well
as a Philips screwdriver PH 2.
Illustration
Î Insert both detergent hoses onto the
hose fittings.
Î Install the dosage regulator and con-
nect using 2 screws.
Install the transport handle
Illustration
Caution
Always connect the system separator to
the water supply, never directly to the appli-
ance!
Note: Impurities in the water can damage
the high-pressure pump and accessories.
For protection, the use of the KÄRCHER
water filter (optional accessory, order no.
4.730-059) is recommended.
Water supply from mains
Observe regulations of water supplier.
For connection values, see type plate/tech-
nical data.
Î Use a fibre-reinforced water hose (not
included) with a standard coupling.
(Minimum diameter 1/2 inch (13 mm),
minimum length 7.5 m).
Î Wind up the high-pressure hose on the
hose drum.
Illustration
Î Slide the free end of the coiled high
pressure hose through the recesses on
the dosage regulator.
Illustration
Î Screw the supplied coupling element to
the water connection on the appliance.
Push the water supply hose onto the
coupling unit, then connect it to the wa-
ter supply.
How to draw water from a bucket when
using a KÄRCHER Pressure Cleaner
KÄRCHER recommends using the suction
hose accessory (sold separately) Order no.
9.505-779.0.
Illustration
Î Attach the transport handle, insert the
bolts into the bores and screw them in.
Illustration
Î Press the connecting fitting from the
short high pressure hose into the brass
intake until it locks into place audibly.
Check the secure connection by pulling
on the high pressure hose.
Connect the high pressure hose to the
hand spray gun
Illustration
Î Push the high pressure hose into the
trigger gun until it locks audibly.
STEP 1:
Î Connect the suction hose to the water
inlet on the pressure cleaner and drop
the other end into a bucket.
6 English
Tip: If you are not using this accessory, coil
a hose into the bucket and ensure that you
only use a standard hose clamp to connect
to the pressure washer.
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".
CLICK FITTINGS MUST NOT BE USED!
Illustration
Î Push the spray lance into the trigger
gun and fasten it by turning it through
90°.
Illustration
STEP 2:
Î Fill up your bucket with water.
Î Unwind the high pressure hose from the
hose drum. Hold on to the transport
handle during this procedure.
Note: If the hand crank is in its secured
position, fold it up first.
Î Completely open the water tap.
Î Completely uncoil the mains cable.
Î Insert the mains plug into the socket.
Î Turn on the appliance “I/ON”.
Operation
STEP 3:
ṇ Danger
Î Connect the KÄRCHER power cord to
an electricity source and turn on at pow-
erpoint. Make sure the high pressure
nozzle is not connected and turn the
unit on at the ON/OFF switch. Press the
trigger on the gun - the unit is ready for
use once there is a constant water sys-
tem.
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.
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.
Spray lance with pressure regulation
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.
STEP 4:
Î Connect the high pressure nozzle and
press the hand trigger to begin clean-
ing.
English 7
Note: Suitable for working with detergent;
for this, turn the spray lance to the "Mix" po-
sition.
Set the dosage regulator to the desired
suction volume for detergent.
Recommended cleaning method
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 jet.
Spray lance with Dirtblaster
For particularly dirty items or areas.
Interrupting operation
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.
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.
–
Not suitable for use with detergents.
Washing brush
–
Note: Suitable for use with detergents.
Set the dosage regulator to the desired
suction volume for detergent.
Finish operation
Caution
Working with detergent
Only separate the high-pressure hose from
the trigger gun or the appliance while there
is no pressure in the system.
Î Remove the detergent reservoir from
the intake and close it with the lid. To
store, place into the intake rotated by
180°.
Î Release the lever on the trigger gun.
Î Turn off the appliance "0/OFF".
Î Turn off tap.
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 use detergents can be pur-
chased ready to use in their detergent res-
ervoirs with locking lids. This will make the
pesky refilling and filling processes redun-
dant.
Î Detach the appliance from the water
supply.
Caution: When disconnecting the sup-
ply or high pressure hose, warm water
may leak from the connections after op-
eration.
Î Press the lever on the trigger gun to re-
lease any remaining pressure in the
system.
Î Lock the lever on the trigger gun.
Î Pull out the mains plug.
Illustration
Î Remove the lid from the detergent res-
ervoir and press the detergent reservoir
into the detergent connection with the
opening facing down.
Illustration
Î Adjust the suction volume of the deter-
gent solution by means of the dosage
regulator for detergents.
Î Use spray lance with pressure regula-
tion (Vario Power).
Î Turn the spray lance to "Mix" position.
Note: This will mix the detergent with
the water stream.
Note: If required, the washing brushes can
be used to work with detergent.
8 English
Transport
Storage
Caution
Caution
In order to prevent accidents or injuries,
keep in mind the weight of the appliance
during transport (see Specifications).
In order to prevent accidents or injuries,
keep in mind the weight of the appliance
when selecting a storage location for it (see
Specifications).
When transporting by hand
Storing the Appliance
Î Pull the appliance by its transport han-
dle.
Î Park the machine on an even surface.
Î Wind the entire high pressure hose onto
the hose drum by rotating the hand
crank counter-clockwise.
Î Insert the hand spray gun with the spray
lance into the holder for the hand spray
gun.
When transporting in vehicles
Î Prior to horizontal transport: Remove
the detergent reservoir from the intake
and close it with the lid.
Î Secure the appliance against shifting
and tipping over.
Illustration
Î Stow away the mains cable, the high-
pressure hose and accessory at the ap-
pliance.
Prior to extended storage periods, as dur-
ing the winter, also observe the instructions
in the Care section.
Frost protection
Caution
Protect the appliance and its accessories
against frost.
The appliance and its accessories can get
destroyed through frost if there are any wa-
ter residues in them. To avoid damage to
them:
Î Completely drain all water from the ap-
pliance:
Detach spray lance from the trigger
gun.
Switch the appliance on ("I/ON“), press
the trigger gun lever until no further wa-
ter is discharged (approx. 1 min).
Turn off the appliance.
Î Store the appliance and the entire ac-
cessories in a frost-safe room.
English 9
Maintenance and care
Troubleshooting
You can rectify minor faults yourself with
the help of the following overview.
If in doubt, please consult the authorized
customer service.
ƽ Danger
Turn off the appliance and remove the
mains plug prior to any care and mainte-
nance work.
ƽ Danger
Care
Turn off the appliance and remove the
mains plug prior to any care and mainte-
nance work.
Prior to longer periods of storage, e.g. in
the winter:
Repair works may only be performed by the
authorized customer service.
Illustration
Î Pull out the sieve in the water connec-
tion using flat-nose pliers and clean un-
der running water.
Appliance is not running
Î Pull on the lever of the trigger gun; the
device will switch on.
Î Check whether the voltage indicated on
the type plate corresponds to the volt-
age of the mains supply.
Maintenance
The appliance is maintenance-free.
Î Check the mains connection cable for
damages.
Spare parts
Pressure does not build up in the
appliance
Î Check setting at the spray lance.
Use only original KÄRCHER spare parts.
You will find a list of spare parts at the end
of these operating instructions.
Î Appliance ventilation.
Switch on the appliance without con-
nection the high-pressure hose (max. 2
minutes) and run it until the water dis-
charging from the high-pressure outlet
is free of bubbles. Switch off appliance
and reconnect high-pressure hose.
Î Check the water supply.
Special accessories
Special accessories expand the possibili-
ties of using your appliance. Please contact
your KÄRCHER dealer for further informa-
tion.
Î Pull out the sieve in the water connec-
tion using flat-nose pliers and clean un-
der running water.
Strong pressure fluctuations
Î Clean high-pressure nozzle: Remove
dirt and debris from the nozzle bore, us-
ing a needle and rinse through with wa-
ter from the front.
Î Check water flow quantity.
Appliance is leaking
Î Slight leakage from the appliance pump
is normal. If the leakage increases con-
tact the authorized customer service.
10 English
No detergent infeed
Î Use spray lance with pressure regula-
Technical specifications
tion (Vario Power).
Electrical connection
Turn the spray lance to "Mix" position.
Î Check the settings at the dosage regu-
lator for detergent.
Voltage
230-240 V
1~50 Hz
Connected load
Protection class
Protective class
Mains fuse (slow-blow)
Water connection
Max. feed pressure
Max. feed temperature
Min. feed volume
Max. Suction height
Performance data
Working pressure
Max. permissible pressure
Water flow rate
2,2 kW
IP X5
I
Î Check the detergent suction hose for
kinks.
16 A
Customer Service
Australia
KÄRCHER Pty. Ltd.
40 Koornang Road
Scoresby, Victoria 3179
0,6 MPa
60 °C
11 I/min
1,0 m
1800 675 714 (Free Call)
13 MPa
15 MPa
8,2 I/min
0,3 I/min
20 N
Detergent flow rate
Recoil force of trigger gun
Dimensions and weights
Length
407 mm
447 mm
972 mm
19,8 kg
Width
Height
Weight
Subject to technical modifications!
English 11
Assembly
12 English
Assembly
English 13
Notes
14 English
Spare Parts
English 15
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