Karcher HD 9-18-4 ST: Installing the plant

     

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13

– Check the contents of the pack before 

unpacking. 

– In case of transport damage inform ven-

dor immediately

– Store the drilling template on the carton 

to assemble the device.

Note:

The water connection, the high pressure 

network as well as the electrical connection 

can only be carried out by authorised ex-

perts in accordance with local regulations.

– The installion should be set-up in a dry, 

non-explosive environment. 

– The installion should be installed on 

firm and even ground.

– The installion should be easily accessi-

ble for maintenance work.

The following are required for installation:

– Wall mount

– Installation with the mounting kit floor 

rack (optional)

몇

CAUTION

Risk of personal injury or damage! Note the 

weight of the appliance during installation.

ATTENTION

Risk of damage! Freezing water in the ap-

pliance can destroy parts of the appliance. 

The machine should be stored in frost-free 

rooms. In case there is frosting risk, for e.g. 

if the machine is installed in open areas, 

then the machine must first be emptied and 

flushed using an anti-freezing agent.



Check the wall's support capacity.



Mark the wall using the drill template on 

the packaging.



Drill the bores into the wall.



Attach the installation materials to the 

wall.



Remove the appliance cover.



Hang up the appliance and secure it 

against falling down.



Replace the appliance hood and fasten 

it with screws.

– For connection values, see technical 

data and type plate.

– The power supply designed for operat-

ing the plant must be suitable for contin-

uous operations.

– The electrical connections must be 

done by an electrician according to IEC 

60364-1. 

– Current-carrying parts, cables and ap-

pliances in the working area must be in-

stalled in a defectless state and must be 

protected against water sprays.

– Design the water supply for continuous 

operations.

– The water feed line is provided with a 

stop valve and can be moved over a 

pressure hose and attached to the high 

pressure system.

– If the cross section of the line is too 

small or if the advance pressure is too 

low, there will be a lack of water.

– When the advance pressure or the 

rinse pressure is too high, it is absolute-

ly necesary to install a pressure reduc-

er. 

– A water drain must be present at instal-

lation site.

For installation, please follow the specifica-

tions of the VDMA sheet 24416 "High pres-

sure cleaners; fixed high pressure cleaning 

systems; concepts, requirements, installa-

tion, testing" (the German version can be 

procured from Beuth Verlag, Cologne, 

www.beuth.de).

– The fixed pipe network and the install-

ion should be connected with a high 

pressure line. 

– The fixed pipe network should be 

placed as straight as possible. High 

pressure piping systems should be in-

stalled correctly with removable and 

fixed clips, taking into consideration the 

variation in length caused by the effects 

of heat and pressure. 

– In order to keep pressure losses in the 

high pressure piping as small as possi-

ble, we recommend the following:

Pipelines: Nominal width DN 15 (1/2“).

Hose lines: Nominal width DN 8.

In regards to the above mentioned stand-

ard values, the length of the pipes and the 

number of direction changes and fittings 

must be taken into account.  

Illustration, see "Operating components".



Mount the nozzle on the spray lance 

(markings on the adjustment ring at the 

top).



Connect spray lance to trigger gun.



Lever out the safety clip of the hand 

spray gun using a screw-driver (Picture 

A).



Place the hand-spray gun upside down 

and insert the end of the high pressure 

hose till the end. Ensure that the lose 

disc falls right below on the hose end 

(Picture B).



Press the safety clip back into the hand-

spray gun. The hose can be pulled out 

max. 1 mm if it has been installed cor-

rectly. Otherwise, it means the disc has 

been installed wrongly (picture C).



Connect the high pressure hose to the 

high pressure outlet of the appliance or 

the high pressure pipe network.

The detergent tank is set up in such a way, 

that the bottom of the tank is located not 

more than 1.5 m unter the unit.



Check that water inlet has the required 

flow and the permissible temperature. 



Check oil level of the pump. 



Cut off tip of oil container.

Adjustments are made on the control circuit 

board

The control circuit board is located in the 

electric box of the high pressure pump.

1 Potentiometer water hardness

2 Potentiometer readiness time period



Initiate the stand by-period with the po-

tentiomenter on the electronic control.



Adjustment by the manufacturer:

10 Minutes

The time can be set between 5 and 120 

minutes. A simple scale of standard values 

is printed on the control board.

Use hard water for hot water operation to 

protect against calcification In addition add 

water softener to the water. The dispensing 

flow can be adjusted to the degree of water 

hardness.



Fill the tank with Kaercher softener liq-

uid RM 110 (Order no. 2.780-001). 



Determining the hardness of tap water: 

– through the public water supply works, 

Installing the plant

Only for authorised techni-

cians!

Unpacking

Installation

Fasten the device to the wall

Electrical connection

!

Water supply

High pressure installation

Attaching the Accessories

Install the detergent tank

Initial startup

Settings

Operational readiness period

Installation water softener (optional)

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EN