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1

Please read and comply with 
these original instructions prior 

to the initial operation of your appliance and 
store them for later use or subsequent own-
ers.

Danger

Immediate danger that can cause severe 
injury or even death.

Warning

Possible hazardous situation that could 
lead to severe injury or even death.

Caution

Possible hazardous situation that could 
lead to mild injury to persons or damage to 
property.

Danger

This appliance must only be operated, 
maintained and repaired by authorised, 
skilled and trained personnel.

Only physically and mentally fit and relia-
ble people should operate and care for 
this high pressure water jets (minimum 
age 18). The operator or his representa-
tive must be certain that the operator is fa-
miliar with the appliance and its 
application and that he will be able to per-
form the assigned tasks responsibly.

Fatigue, health issues, influence by al-
cohol or medications lead to a higher 
safety risk while operating the machine.

For safety reasons, a second person 
must always be present when the appli-
ance is being operated, in order to be 
able to shut off the appliance in emer-
gencies and to summon help if needed.

The local and relevant accident preven-
tion directives as well as other, general-
ly applicable safety, health and work 
related regulations are to be observed.

The user is obliged to only operate the ap-
pliance while it is in flawless condition.

Safety features on the appliance and 
the spray unit must never be removed, 
modified to made inoperable.

Only use hose lines, spray units and ac-
cessories approved for the maximum 
working pressure of the appliance.

Hoses, pipes and connected accesso-
ries must be in good condition and in-
stalled properly.

The application should not be operated 
in explosive environments.

If the appliance is used in hazardous ar-
eas (e.g. filling stations) the corre-
sponding safety provisions must be 
observed.

During jet spray work, nobody besides 
the operator is allowed in a radius of 10 
m around the spray unit

.

Never direct the water jet on to persons, 
animals, the appliance itself or electrical 
components. 

Modifications of the set operating over 
pressure on the appliance may only be 
performed if previously agreed with the 
operator of the spray unit.

Risk of injury! The recoil pressure of the 
spray pipe can throw you off-balance.  
You may fall.  The spray jet can fly off 
and cause damage to persons. Search 
a secure place to stand and hold the 
gun firmly.  Never hold on tightly to the 
lever of the hand spray gun.

Risk of falling! Take precautions when 
working on a scaffold, so that the person 
does not fall from the scaffold due to the 
recoil force generated by the appliance.

For manual work with a spray gun, the 
nozzle diameter must be selected so 
that the recoil force in the longitudinal 
axis does not exceed 250 N during 
max. operating pressure. If the recoil 
force 150 N, the spray gun must be 
equipped with a body support as per 
European standard prEN 1829. With re-
coil forces that exceed 250 N, the noz-
zle must be guided mechanically.

+

The recoil forces may be different if you 
are using angular spray devices.

Always monitor the displays during op-
eration. If the displayed values are not 
correct, switch the appliance off imme-
diately and remediate the cause of the 
malfunction.

If the appliance is not to be turned on, 
e.g. during maintenance procedures, 
you must attach a warning sign on the 
switch cabinet.

Prevent unauthorised personnel from 
using the appliance by switching off the 
key switch and removing the key.

The appliance must be secured against 
unauthorised use during work breaks.

If the water stream is directed on 
sound-amplifying objects, the noise 
emission values may exceed the values 
listed in the specifications.

Any type of non-adherence as well as 
resulting injuries to humans and dam-
age to materials lies in the responsibility 
of the operator. Failure to observe 
these warnings may result in injuries or 
death of the operating personnel.

Danger

When working with the appliance or when 
being present near the spray unit, the fol-
lowing protective clothing must be worn:

Note

You must use protective clothing that is 
specifically intended to be used with high 
pressure cleaners. Effective protective 
clothing can be purchased directly from 
KÄRCHER.

Safety devices serve to protect the user 
and must not be rendered inoperational or 
their functions bypassed.

To put all functions out of operation imme-
diately: Press emergency-stop button. 
The appliance is free of pressure.

The appliance should be used only if the 
appliance hood is closed.
If the appliance hood is opened during op-
eration, the appliance will switch off and a 
fault will be displayed.

Contents

Safety instructions

EN -

1

Function

EN -

2

Environmental protection

EN -

2

Proper use

EN -

2

Device elements

EN -

3

Operation

EN -

5

Frost protection

EN -

8

Maintenance and care

EN -

10

Faults

EN -

14

Technical specifications

EN -

16

Accessories and Spare Parts EN -

17

Warranty

EN -

17

CE declaration

EN -

17

Safety instructions

Hazard levels

Safety instructions

Protective clothing

Helmet with protective 
shield

Safety goggles

Capsule ear protection

Protective gloves

Special safety boots and 
a middle foot protection

Protective jacketprotec-
tive overalls

Safety Devices

Emergency-stop button

Safety switch for appliance hood

3

EN

Summary of Contents for HD 7/250 DE TR1

Page 1: ...HD 7 250 De Tr1 59633200 08 10...

Page 2: ...2...

Page 3: ...g on a scaffold so that the person does not fall from the scaffold due to the recoil force generated by the appliance For manual work with a spray gun the nozzle diameter must be selected so that the...

Page 4: ...ral oil con taining wastewater into the soil surface waters or sewer sys tems Notes about the ingredients REACH You will find current information about the ingredients at http www karcher de de untern...

Page 5: ...ation plates 27 Storage compartment 28 Hinge storage compartment 29 Emergency stop button 30 Switch box 31 Operating field 32 Vice 33 Socket control line 34 Exterior air connection supply 35 Water inl...

Page 6: ...rating panel 8 7 Symbols on the display Symbol Meaning Nominal pressure Actual pressure Motor oil pressure Fuel level Water level in tank Cool water temperature Reset Motor ON Motor OFF Reduce nominal...

Page 7: ...from the ve hicle lighting and insert it into the plug storage on the drawbar Secure the machine with wheel chocks to prevent it from rolling away Disconnect the towing vehicle Align the appliance hor...

Page 8: ...even if they are in good condition High pressure hoses that have been stored for more than 2 years may no longer be used Store the high pressure hose so that there is no mechanical strain Store in a c...

Page 9: ...oltage is switch on and the dis play shows the operating status At low ambient temperatures the preheat ing process will start automatically The re spective message is shown on the display Press the F...

Page 10: ...re spray release the lever of the hand spray gun and let the release lock Press F3 key Depending on the load the motor should somewhat longer to cool off The display will show the trailing time of the...

Page 11: ...olant circuit of the motor for sufficient antifreeze refill antifreeze as needed See Maintenance Procedures Check and refill the coolant If the appliance is not used for an ex tended period and if the...

Page 12: ...sure can pene trate the skin and cause severe injuries and infections Stay away from leaks and do not search for leaks by hand Do not use flammable detergents to clean the appliance After completing t...

Page 13: ...13 Pressure container 14 Compressed air filter 15 Pressure switch 16 2 2 way PN bypass valve 17 5 2 way valve 18 3 2 way valve 19 Burst disc safety 20 High pressure sensor 21 High pressure pump 22 Int...

Page 14: ...nance Procedures Customer Service Replace oil filter insert on motor Customer Service Check the screw connections on the motor Call customer service if necessary Customer Service Once after the first...

Page 15: ...ar acid resistant goggles gloves and an apron when working with battery acid Never charge the battery in the vicinity of open flames or igniting sparks The battery may only be charged in rooms that ar...

Page 16: ...aminated Clean the radiator Operator V belt tension on the ventilator too low Retension V belt Customer Service Thermostat defective Replace the thermostat Customer Service Cable breakage Replace the...

Page 17: ...ressure below 0 15 MPa 1 5 bar Water reservoir empty Filling the Water Reservoir Operator Water filter contaminated Clean water filter Operator Backflow valve on the advance pump contami nated Check b...

Page 18: ...sing standard nozzle MPa bar 250 2500 Max excess operating pressure safety valve MPa bar 300 3000 Drive motor performance kW 74 Motor rpm 1 min 3000 Battery V Ah 12 55 Nozzle size 0 6 Max recoil force...

Page 19: ...purchase We hereby declare that the machine de scribed below complies with the relevant basic safety and health requirements of the EU Directives both in its basic design and construction as well as i...

Page 20: ...Biatorbagy 36 23 530 64 0 www kaercher hu I K rcher S p A Via A Vespucci 19 21013 Gallarate VA 39 848 998877 www karcher it IE K rcher Limited Ireland 12 Willow Business Park Nangor Road Dublin 12 01...

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