Manual Karcher K 7.750 (page 19 of 264) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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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).

Caution

Hose couplings made of metal with aquas-

top can damage the pump! Please use

plastic couplings or KÄRCHER brass cou-

plings.

Illustration

 Screw the coupling element to the wa-

ter 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.

 Remove air from appliance before oper-

ation.

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.

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

 Push the spray lance into the trigger gun

and fasten it by turning it through 90°.

Illustration

 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.

 Completely open the water tap.

 Completely uncoil the mains cable.

 Insert the mains plug into the socket.

 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.

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.

 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".

 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.

For particularly dirty items or areas.

Not suitable for use with detergents.

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.

Suitable for use with detergents.

Water supply from mains

Drawing in water from open reservoirs

Start up

Operation

Spray lance with pressure regulation

Spray lance with Dirtblaster

Washing brush

19EN

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Karcher K 7.750 Manual

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