Manual Karcher K 4.640 (page 16 of 256) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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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.

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.

Observe regulations of water supplier.

For connection values, see type plate/tech-

nical data.

 Use a fibre-reinforced water hose (not

included) with a standard coupling.

(Minimum diameter 1/2 inch (13 mm),

minimum length 7.5 m).

 Illustration

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.

This high-pressure cleaner is suited to work

with the KÄRCHER suction hose with back-

flow valve (Optional accessory, order no.

4.440-238) to draw in surface water, e.g.

from water butts or ponds (see specifica-

tions for max. suction height).

 Fill the KÄRCHER suction hose with

backflow valve with water, screw to wa-

ter supply and hang into the water butt.

 Separate the high pressure hose from

the high pressure connection of the ap-

pliance.

 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".

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”.

ƽ 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.

 Unlock the lever on the trigger gun.

Water supply

Water supply from mains

Drawing in water from open reservoirs

Start up

Operation

16 EN

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Karcher K 4.640 Manual

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