Read these original instructions and the enclosed safety instructions before using the device for the first time. Act in accordance with them.

Keep both books for future reference or for future owners.

• If the operating instructions and safety instructions are not observed, the device can be damaged and dangers could arise for users and other persons.

• Notify the dealer immediately in the case of shipping damage.

• Check the package contents when unpacking for missing accessories or for damage. Scope of delivery see illustration A.

• At operating elevations of approx. 800 m above sea level or higher, please contact your dealer to have the burner setting adjusted to the elevation and reduced oxygen content.

The packing materials can be recycled. Please dispose of packaging in accordance with the environmental regulations.

Electrical and electronic devices contain valuable, recyclable materials and often components such as batteries, rechargeable batteries or oil, which - if handled or disposed of incorrectly - can pose a potential danger to human health and the environment. However, these components are required for the correct operation of the device. Devices marked by this symbol are not allowed to be disposed of together with the household rubbish.

Current information on content materials can be found at: www.kaercher.de/REACH

Please do not allow engine oil, heating oil, diesel and petrol to enter the environment. Please protect the ground and dispose of old oil in an environmentally friendly manner.

Only use the device for cleaning, e.g. machines, vehicles, buildings, tools, façades, terraces and garden equipment.

The following limit values apply to the water supply:

• pH value: 6.5-9.5

• Electrical conductivity: Conductivity of fresh water + 1200 µS/cm, maximum conductivity 2000 µS/cm

• Settleable particles (sample volume 1 l, settling time 30 minutes): < 0.5 mg/l

• Filterable particles: < 50 mg/l, no abrasive substances

• Hydrocarbons: < 20 mg/l

• Chloride: < 300 mg/l

• Sulphate: < 240 mg/l

• Calcium: < 200 mg/l

• Total hardness: < 28 °dH, < 50° TH, < 500 ppm (mg CaCO₃/l)

• Iron: < 0.5 mg/l

• Manganese: < 0.05 mg/l

• Copper: < 2 mg/l

• Active chloride: < 0.3 mg/l

• Free of unpleasant odours

The following safety instructions apply to the device:

• Observe the respectively applicable national regulations for liquid jet cleaners.

• Observe the respectively applicable national accident prevention regulations. Liquid jet cleaners must be tested regularly and the results of the test recorded in writing.

• Note that the heating system in the device is classified as a furnace. Furnaces must be inspected regularly according to the applicable national regulations.

• No modifications may be made to the device or accessories.

• To avoid hazards from excessive temperatures, you must set the pressure/quantity regulator of the pump unit to MAX at work temperatures above 60 °C.

Safety devices protect the user and may not be disabled or functionally circumvented.

• The safety valve opens if the pressure switch is faulty.

• The safety valve is adjusted and sealed at the factory. The adjustment is performed only by customer service.

The water shortage safeguard prevents the burner from switching on when there is a lack of water.

The exhaust gas thermostat switches the device off when the emission temperature is too high.

1. Apply the parking brake.

1. Place the device on a flat and level surface.

2. Check the high-pressure pump oil level at the oil level display.

   The oil level must be in the middle of the oil level indication.

3. Top up the oil if necessary.

1. Connect the spray lance to the high-pressure gun and hand-tighten (EASY!Lock).

2. Plug the high-pressure nozzle onto the spray lance.

3. Fit the union nut and hand-tighten (EASY!Lock).

4. Connect the high-pressure hose to the high-pressure gun and high-pressure connection of the device and tighten hand-tight (EASY!Lock).

1. Open the tank cap.

2. Refill the fuel.

3. Close the tank cap.

4. Wipe up the spilt fuel.

According to applicable regulations, the device must never be used with the drinking water network without a system separator. Use a system separator from KÄRCHER or a system separator as per EN 12729 Type BA. Water that has flowed through a system separator is classified as undrinkable. Always connect the system separator to the water supply and never directly to the water connection on the device.

• See the "Technical data" for the connected loads.

1. Connect the system separator to the water inlet (e.g. tap).

2. Connect the inlet hose (minimum length 7.5 m, minimum diameter 3/4”) to the water connection of the device and to the system separator.

3. Open the water inlet.

1. Connect the suction hose (diameter at least 3/4”) to the water connection of the device.

2. Hang the suction hose in an external water source.

   Note

   Maximum suction height: 0.5 m

3. Until the pump draws in water: Set the pressure/quantity regulator of the pump unit to the maximum value.

• For connected loads, see technical data and type plate.

• The electrical connection must be carried out by an electrician and comply with IEC 60364-1.

• Only 3-phase devices: Check the correct polarity of the device, see operation / polarity inverter switch.

1. Switch off the device and operate the high-pressure gun until the device is depressurized.

2. Lock the high-pressure gun by pushing the safety latch forwards.

3. Change the nozzle.

1. Set the trigger to the operating mode. The device starts up briefly and switches off as soon as the working pressure is reached.

2. Unlock the high-pressure gun by pushing the safety latch to the rear. When the high-pressure gun is actuated, the device switches on again.

   Note

   If no water comes out of the high-pressure nozzle, bleed the pump. See help in the event of malfunctions – device does not build up pressure.

1. Operate the device in cold water operation.

2. Check the correct direction of rotation of the fan: Hold your hand over the chimney and check whether you can feel an airflow.

3. Airflow noticeable: The direction of rotation is correct.

4. Airflow not noticeable: Swap the pins on the polarity inverter switch.

   ---

   

1. Turn the regulating spindle clockwise: Increase the working pressure (MAX).

2. Turn the regulating spindle anticlockwise: Reduce the working pressure (MIN).

1. Set the cleaning temperature according to the surface to be cleaned.

For removing light contamination and for rinsing, e.g. garden machines, terrace, tools.

The device works in the most economical temperature range (max. 60 °C).

1. Set the power switch to the desired temperature.

• 30-50 °C: Light soiling

• Max. 60 °C: Soiling containing protein, e.g. in the food industry

• 60-90 °C: Car cleaning, machine cleaning

1. Lock the high-pressure gun by pushing the safety latch forwards.

1. Close the water inlet.

2. Open the high-pressure gun.

3. Switch on the pump with the power switch and let it run for 5-10 seconds.

4. Close the high-pressure gun.

5. Set the power switch to "0".

6. Only pull the mains plug out of the socket only when your hands are dry.

7. Remove the water connection.

8. Actuate the high-pressure gun until the device is completely depressurised.

9. Lock the high-pressure gun by pushing the safety latch forwards.

1. Insert the high-pressure gun in the support on the frame together with the spray lance.

2. Roll up the high-pressure hose and the electrical line and hang them on the supports.

In the case of devices that are connected to a chimney, the ingress of cold air must be taken into account.

1. Shut down the device if frost-free storage is not possible.

For longer breaks in operation or when frost-free storage is not possible:

1. Drain the water.

2. Flush the device with antifreeze.

1. Unscrew the water supply hose and the high-pressure hose.

2. Unscrew the supply line at the boiler base and allow the heating coil to drain.

3. Allow the device for run for a maximum of 1 minute until the pump and lines are empty.

1. Flush the device (burner off) completely with a commercially available antifreeze.

This also provides a certain degree of corrosion protection.

1. Run a tensioning strap to secure the device between the wheel and the frame over the base plate. Observe the illustration.

   ---

   

2. When transporting the device in vehicles, secure it to prevent it from slipping or overturning in accordance with the respectively applicable guidelines.

1. Fasten the lifting device to the struts for crane transport of the device.

   ---

   

1. Close the water inlet.

2. Open the high-pressure gun.

3. Switch on the pump with the power switch and let it run for 5-10 seconds.

4. Close the high-pressure gun.

5. Set the power switch to "0".

6. Only pull the mains plug out of the socket only when your hands are dry.

7. Remove the water connection.

8. Actuate the high-pressure gun until the device is completely depressurised.

9. Lock the high-pressure gun by pushing the safety latch forwards.

10. Allow the device to cool down.

You can agree on regular safety inspections or close a maintenance contract with your dealer. Please seek advice on this.

1. Clean the fine filter.

2. Clean the fuel strainer.

3. Clean the fuel filter.

4. Check the oil level.

1. Change the oil.

2. Have the device descaled by Customer Service.

3. Have the device maintained by Customer Service.

1. Depressurise the device.

2. Unscrew the fine filter on the pump head.

3. Dismantle the fine filter and take out the filter inlay.

4. Clean the filter inlay with clean water or compressed air.

5. Assemble in the reverse order.

1. Knock out the fuel sieve. Do not allow fuel to enter the environment.

1. Release the 3 fastening screws of the cover and remove the cover.

2. Remove the fuel filter.

3. Clean the fuel filter.

4. Remount the fuel filter.

1. Release the 3 fastening screws of the cover and remove the cover.

2. Pull out the fuel filter and place it to the side in a suitable container, as diesel can run out of the pipes.

3. Pull out the empty sensor and place it in a suitable container.

4. Release the 2 fastening screws between the fuel tank and the electrical box.

   ---

   

5. Lift the electrical box and pull out the fuel tank towards the filler hole. Support the electrical box on the motor.

6. Rinse the fuel tank.

7. Reinsert the fuel tank.

8. Reinstall in the in the reverse order.

See the "Technical data" section for the oil filling quantity and type.

1. Release the 3 fastening screws of the cover and remove the cover.

2. Release the 2 fastening screws between the fuel tank and the electrical box.

   ---

   

3. Lift the electrical box and push the fuel tank partially towards the burner fan. Support the electrical box on the motor.

4. Place a suitable catch pan for approx. 0.5 litres of oil under the pump.

5. Loosen the oil drain plug.

6. Drain the oil into the catch pan. To allow the oil to drain off more quickly and completely, unscrew the oil filler plug completely.

   Note

   Dispose of the old oil in an environmentally friendly manner or hand it over to an authorised collection point.

7. Retighten the oil drain plug, torque 20-25 Nm.

8. Slowly fill with new oil until the level is in the middle of the oil level display. The air bubbles must be able to escape.

9. Screw in the oil filler plug.

10. Push the fuel tank back again.

11. Reinstall in the in the reverse order.

• Device not running 

• The fuel indicator light lights upOnly applies when the device is running and operating with hot water. 

• Device not building up pressure 

• Device is leaking, water is dripping from the bottom of the device 

• The device switches on and off continuously when the high-pressure gun is locked 

• Burner not ignitingOnly applies when operating with hot water. 

• Burner does not switch off despite the water shortage 

• The set temperature is not reached when operating with hot water 

Cause:

No mains voltage

Remedy:

1. Check the power supply and the supply line.

Cause:

Fault in the voltage supply or current consumption of the motor too high

Remedy:

1. Check the power supply and the mains power supply circuit breaker.

2. Contact Customer Service.

Cause:

Motor overloaded / exhaust gas thermostat has tripped

Remedy:

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly

Remedy:

1. Contact Customer Service.

Cause:

Fuel tank is empty

Remedy:

1. Refill the fuel.

Cause:

Air in the system

Remedy:

1. Venting the pump:

   1. Unscrew the nozzle from the spray lance.

   2. Allow the device to run until the escaping water is free of air bubbles.

   3. In the case of venting problems, allow the device to run for 10 seconds and then switch it off. Repeat the procedure several times.

   4. Open and close the pressure/quantity regulator of the pump unit with the high-pressure gun open.

   5. Switch off the device.

   6. Screw the nozzle back on.

2. Check connections and lines.

Cause:

Fine filter dirty

Remedy:

1. Clean the fine filter, replace if necessary.

Cause:

Water supply volume too low

Remedy:

1. Check the water supply volume (see "Technical data").

Cause:

Pump leaking

Remedy:

1. If there is a significant leak, have the device checked by Customer Service.

   Note

   3 drops/minute are permitted.

Cause:

Leak in the high-pressure system

Remedy:

1. Check the high-pressure system and the connections for leaks.

Cause:

Water shortage

Remedy:

1. Check the water connection and the supply lines.

Cause:

Fuel filter dirty

Remedy:

1. Clean/replace the fuel filter.

Cause:

No ignition spark

Remedy:

1. If no ignition spark is visible through the sight glass during operation, have the device checked by Customer Service.

Cause:

Leak in the high-pressure system

Remedy:

1. Check the high-pressure system and the connections for leaks.

Cause:

Reed switch stuck in the water shortage safeguard or magnetic piston stuck

Remedy:

1. Contact Customer Service.

Cause:

Working pressure/flow rate too high

Remedy:

1. Reduce the working pressure/flow rate via the pressure/quantity regulator of the pump unit.

Cause:

Sooty heating coil

Remedy:

1. Have the soot removed from the device by Customer Service.

If the malfunction cannot be corrected, the device must be checked by the Customer Service department.

• Device not running 

• The fuel indicator light lights upOnly applies when the device is running and operating with hot water. 

• Device not building up pressure 

• Device is leaking, water is dripping from the bottom of the device 

• The device switches on and off continuously when the high-pressure gun is locked 

• Burner not ignitingOnly applies when operating with hot water. 

• Burner does not switch off despite the water shortage 

• The set temperature is not reached when operating with hot water 

Cause:

No mains voltage

Remedy:

1. Check the power supply and the supply line.

Cause:

Fault in the voltage supply or current consumption of the motor too high

Remedy:

1. Check the power supply and the mains power supply circuit breaker.

2. Contact Customer Service.

Cause:

Motor overloaded / exhaust gas thermostat has tripped

Remedy:

1. Set the power switch to "0".

2. Allow the device to cool down.

3. Switch the device on.

Cause:

Malfunction occurs repeatedly

Remedy:

1. Contact Customer Service.

Cause:

Fuel tank is empty

Remedy:

1. Refill the fuel.

Cause:

Air in the system

Remedy:

1. Venting the pump:

   1. Unscrew the nozzle from the spray lance.

   2. Allow the device to run until the escaping water is free of air bubbles.

   3. In the case of venting problems, allow the device to run for 10 seconds and then switch it off. Repeat the procedure several times.

   4. Open and close the pressure/quantity regulator of the pump unit with the high-pressure gun open.

   5. Switch off the device.

   6. Screw the nozzle back on.

2. Check connections and lines.

Cause:

Fine filter dirty

Remedy:

1. Clean the fine filter, replace if necessary.

Cause:

Water supply volume too low

Remedy:

1. Check the water supply volume (see "Technical data").

Cause:

Pump leaking

Remedy:

1. If there is a significant leak, have the device checked by Customer Service.

   Note

   3 drops/minute are permitted.

Cause:

Leak in the high-pressure system

Remedy:

1. Check the high-pressure system and the connections for leaks.

Cause:

Water shortage

Remedy:

1. Check the water connection and the supply lines.

Cause:

Fuel filter dirty

Remedy:

1. Clean/replace the fuel filter.

Cause:

No ignition spark

Remedy:

1. If no ignition spark is visible through the sight glass during operation, have the device checked by Customer Service.

Cause:

Leak in the high-pressure system

Remedy:

1. Check the high-pressure system and the connections for leaks.

Cause:

Reed switch stuck in the water shortage safeguard or magnetic piston stuck

Remedy:

1. Contact Customer Service.

Cause:

Working pressure/flow rate too high

Remedy:

1. Reduce the working pressure/flow rate via the pressure/quantity regulator of the pump unit.

Cause:

Sooty heating coil

Remedy:

1. Have the soot removed from the device by Customer Service.

The warranty conditions issued by our relevant sales company apply in all countries. We shall remedy possible malfunctions on your appliance within the warranty period free of cost, provided that a material or manufacturing flaw is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site.

Further information can be found at: www.kaercher.com/dealersearch

Further warranty information (if available) can be found in the service area of your local Kärcher website under "Downloads".

Only use original accessories and original spare parts. They ensure that the appliance will run fault-free and safely.

Information on accessories and spare parts can be found at www.kaercher.com.

We hereby declare that the machine described below complies with the relevant basic safety and health requirements in the EU Directives, both in its basic design and construction as well as in the version placed in circulation by us. This declaration is invalidated by any changes made to the machine that are not approved by us.

Product: High-pressure cleaner

Type: 1.030-xxx

2000/14/EC

2006/42/EC (+2009/127/EC)

2009/125/EC

2011/65/EU

2014/30/EU

EN IEC 63000: 2018

EN 55014-1: 2017 + A11: 2020

EN 55014-2: 1997 + A1: 2001 + A2: 2008

EN 60335-1

EN 60335-2-79

EN 61000-3-2: 2014

EN 62233: 2008

HDS 8/18-4 C Classic, HDS 9/20-4 M Classic, HDS 10/21-4 M Classic:

EN 61000-3-3: 2013

HDS 6/15-4 C Classic, HDS 13/20-4 S Classic:

EN 61000-3-11: 2000

(EU) 2019/1781

2000/14/EC: Annex V

HDS Classic

Measured: 94

Guaranteed: 97

-

The signatories act on behalf of and with the authority of the company management.

---

Documentation supervisor:

S. Reiser

Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28 - 40

71364 Winnenden (Germany)

Ph.: +49 7195 14-0

Fax: +49 7195 14-2212

Winnenden, 2021/10/01

We hereby declare that the product described below complies with the relevant provisions of the following UK Regulations, both in its basic design and construction as well as in the version put into circulation by us. This declaration shall cease to be valid if the product is modified without our prior approval.

Product: High-pressure cleaner

Type: 1.030-xxx

S.I. 2001/1701 (as amended)

S.I. 2008/1597 (as amended)

S.I. 2010/2617 (as amended)

S.I. 2012/3032 (as amended)

S.I. 2016/1091 (as amended)

EN IEC 63000: 2018

EN 55014-1: 2017 + A11: 2020

EN 55014-2: 1997 + A1: 2001 + A2: 2008

EN 60335-1

EN 60335-2-79

EN 61000-3-2: 2014

EN 62233: 2008

HDS 8/18-4 C Classic, HDS 9/20-4 M Classic, HDS 10/21-4 M Classic:

EN 61000-3-3: 2013

HDS 6/15-4 C Classic, HDS 13/20-4 S Classic:

EN 61000-3-11: 2000

(EU) 2019/1781

S.I. 2001/1701 (as amended): Schedule 8

HDS Classic

Measured: 94

Guaranteed: 97

-

The signatories act on behalf of and with the authority of the company management.

---

Documentation supervisor:

S. Reiser

Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28 - 40

71364 Winnenden (Germany)

Ph.: +49 7195 14-0

Fax: +49 7195 14-2212

Winnenden, 2021/10/01

• HDS 6/15-4 C Classic 

• HDS 8/18-4 C Classic 

• HDS 9/20-4 M Classic 

• HDS 10/21-4 M Classic 

• HDS 13/20-4 S Classic