Read these original operating instructions and the enclosed safety instructions before using the device for the first time. Proceed accordingly.

Keep both books for future reference or for future owners.

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.

Cleaning work producing in oily waste water, e.g. washing engines, washing undercarriages etc., may only be performed at washing stations with an oil separator.

Working with detergents may only be performed on watertight surfaces with connection to the waste water sewage system. Do not allow detergent to enter waterways or the soil.

Extraction of water from public waterways is not permitted in some countries.

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

Use the high-pressure cleaner in private households only.

The high-pressure cleaner is intended for cleaning machines, vehicles, buildings, tools, façades, terraces, garden machines etc. using a high-pressure water jet.

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.

The scope of delivery for the appliance is shown on the packaging. Check the contents for completeness when unpacking. If any accessories are missing or in the event of any shipping damage, please notify your dealer.

---

---

1. Transport wheel
2. Water connection with integrated sieve
3. Detergent suction hose
4. Mains connection cable with mains plug
5. Mains connection cable storage compartment
6. Hose reel
7. Holder for high-pressure hose
8. Spray lance dirt grinder for stubborn soiling
9. Vario Power spray lance for common cleaning tasksThe working pressure can be continuously increased from "SOFT" to "HARD". To adjust the working pressure, release the trigger gun lever and turn the spray lance to the desired position. Detergent can be added to the water jet when the spray lance is turned all the way in the SOFT direction.
10. High-pressure gun
11. Button for separating the high-pressure hose from the high-pressure gun
12. High-pressure gun lever
13. High-pressure gun lock
14. High-pressure hose
15. Trigger "0/OFF" / "I/ON"
16. Storage for spray lance
17. Storage for high-pressure hose / mains connection cable
18. Transport handle
19. Storage for high-pressure gun
20. Quick coupling for high-pressure connection
21. Type plate
22. Water connection coupling
23. **Garden hose (fabric reinforced, diameter at least 1/2 inch (13 mm), length at least 7.5 m, with commercially available quick coupling)
24. **KÄRCHER suction hose for water supply from open containers (order no. 2.643-100)
25. Screws
26. High-pressure hose clip

** additionally required

The power switch prevents unintentional operation of the device.

The lock locks the lever of the high-pressure gun and prevents the device from starting unintentionally.

If the lever of the high-pressure gun is released, the pressure switch turns off the pump and the high-pressure jet stops. The pump switches on again when the lever is pressed.

The motor circuit breaker shuts off the device if power consumption it too high.

Fit the supplied loose parts onto the device before starting up the device.

Place the screws provided and matching screwdriver at the ready.

1. Attach the transport handle.

2. Secure the transport handle with 3 screws.

   ---

   

1. Insert the storage option for the high-pressure hose / mains connection cable into the holder at the centre of the transport handle.

   The storage option locks into place.

   ---

   

1. Push in the storage option for the spray lances into the holder on the device.

2. Hold the storage option in the end position and secure it using a screw.

   ---

   

1. Push in the storage option for the high-pressure gun into the holder on the device.

2. Hold the storage option in the end position and secure it using a screw.

   ---

   

Devices without a hose reel

1. Push in the storage option for the mains connection cable into the holder on the transport handle.

2. Hold the storage option in the end position and secure it using a screw.

   ---

   

Devices with a hose reel

1. Attach the holder for the hose reel.

2. Secure the holder using 2 screws.

   ---

   

3. Attach the hose reel.

   The hose reel locks into place.

   ---

   

1. Screw the water connection coupling onto the water connection on the device.

   ---

   

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

2. Unwind the high-pressure hose and eliminate any loops and twists.

   Note

   Devices with a hose reel During operation, the high-pressure hose must be completely unwound from the hose reel.

3. Insert the high-pressure hose into the high-pressure gun until it audibly latches into place.

   ---

   

   Note

   Take care to ensure the correct alignment of the nipple.

4. Insert the high-pressure hose into the quick coupling until it audibly latches into place.

   ---

   

5. Check for a secure connection by pulling on the high-pressure hose.

6. Plug the mains plug into a mains socket.

For the connection values, see the type plate or chapter Technical data.

Observe the water distribution company regulations.

1. Plug the garden hose onto the water connection coupling.

2. Connect the garden hose to the water line.

   ---

   

3. Open the water tap fully.

When used with the KÄRCHER suction hose with check valve (special accessory, order number 2.643-100) this high-pressure cleaner is suitable for sucking up surface water, e.g. from rain barrels or ponds (for the maximum suction height see chapter Technical data).

The water connection coupling is not required for vacuuming operation.

1. Fill the suction hose with water.

2. Screw the suction hose onto the device water connection and hang it in a water source (e.g. water butt).

1. Switch the device on "I/ON".

2. Unlock the lever of the high-pressure gun.

3. Press the lever of the high-pressure gun.

   The device switches on.

4. Allow the device for run a maximum of 2 minutes until the water escaping from the high-pressure gun is free of air bubbles.

5. Release the lever of the high-pressure gun.

6. Lock the lever of the high-pressure gun.

1. Insert a spray lance into the high-pressure gun and lock it by turning it 90°.

   ---

   

2. Switch the device on ("I/ON").

3. Unlock the lever of the high-pressure gun.

4. Press the lever of the high-pressure gun.

   The device switches on.

1. Pull the desired length of the detergent suction hose out of the casing.

   ---

   

2. Hang the detergent suction hose in a container with detergent solution.

3. Use the Vario Power spray lance.

4. Turn the spray lance all the way into the "SOFT" position.

   The detergent solution is mixed with the water jet during operation.

1. Spray the detergent sparingly on the dry surface and let it work for a while (do not let it dry).

2. Rinse off the loosened dirt with the high-pressure jet.

1. Flush the device with clear water for approx. 30 seconds.

1. Release the lever of the high-pressure gun.

   The device switches off when the lever is released. The high pressure in the system is retained.

2. Lock the lever of the high-pressure gun.

   ---

   

3. Switch the device off "0/OFF" during work breaks longer than 5 minutes.

1. Release the lever of the high-pressure gun.

2. Close the water tap.

3. Press the lever of the high-pressure gun for 30 seconds.

   The pressure remaining in the system is discharged.

4. Release the lever of the high-pressure gun.

5. Lock the lever of the high-pressure gun.

6. Disconnect the device from the water supply.

7. Switch off the device "0/OFF".

8. Pull the mains plug out of the socket.

1. Pull the device via the transport handle.

1. Secure the device against slipping and tipping over.

1. Place the device on a level surface.

2. Disconnect the spray lance from the high-pressure gun.

3. Press the separation button on the high-pressure gun and disconnect the high-pressure hose from the high-pressure gun.

4. Press the casing of the high-pressure hose quick coupling in the direction of the arrow and pull out the high-pressure hose.

5. Stowing the high-pressure hose.

   Devices without a hose reel

   Store the high-pressure hose on the device.

   Devices with a hose reel

   1. Insert one end of the high-pressure hose into the opening at the front of the hose reel.

   2. Turn the crank to wind up the high-pressure hose.

   3. While doing so, guide the high-pressure hose with the second hand.

      ---

      

   4. Fasten the coiled high-pressure hose to the hose reel with the high-pressure hose clip.

      ---

      

6. Stow the mains connection cable on the device.

7. Stow both spray lances and the high-pressure gun in the appropriate storage options.

Observe the additional instructions before storing the device for a longer period of time, see chapter Care and service.

The following requirements must be satisfied:

• The device is disconnected from the water supply.

• The high-pressure hose is removed.

1. Switch the device on "I/ON".

2. Wait for a maximum of 1 minute until no more water escapes from the high-pressure connection.

3. Switch off the device.

4. Store the device in a frost-protected room, together with all accessories.

The device is maintenance-free, i.e. you do not need to perform any maintenance work.

If necessary, clean the sieve in the water connection.

1. Remove the water connection coupling.

2. Pull the sieve out.

3. Clean the sieve under running water.

   ---

   

4. Insert the sieve into the water connection.

Clean the detergent filter before longer periods of storage.

1. Pull the filter off the detergent suction hose.

2. Clean the filter under running water.

   ---

   

Malfunctions often have simple causes that you can remedy yourself using the following overview. When in doubt, or in the case of malfunctions not mentioned here, please contact your authorised Customer Service.

• Device not running 

• The device does not start up, the motor buzzes 

• Device does not reach required pressure 

• Strong pressure fluctuations 

• Device leaking 

• Detergent is not sucked in 

Remedy:

1. Press the lever of the high-pressure gun.

   The device switches on.

2. Check that the voltage specified on the type plate corresponds to the voltage of the power source.

3. Check the mains connection cable for damage.

4. If the motor is overloaded and the motor circuit breaker has triggered:

   1. Switch off the device "0/OFF".

   2. Allow the device to cool down for 1 hour.

   3. Switch the device on "I/ON" and resume operation.

   Have the device checked by Customer Service if this fault occurs repeatedly.

Cause:

Voltage drop due to a weak mains grid or when using an extension cable

Remedy:

1. When switching on, first press the lever on the high-pressure gun and then switch on the device "I/ON".

Cause:

The water supply is too low.

Remedy:

1. Open the water tap fully.

2. Check the water inlet for an adequate flow rate.

3. Check the setting at the spray lance.

4. Check that the maximum suction height is not exceeded.

Cause:

The sieve in the water connection is dirty.

Remedy:

1. Pull the sieve in the water connection out using flat pliers.

2. Clean the sieve under running water.

   ---

   

Cause:

Air is in the device.

Remedy:

1. Vent the device:

   1. Switch on the device without a connected spray lance for a maximum of 2 minutes.

   2. Press the high-pressure gun and wait until the water escaping from the high-pressure gun is free of air bubbles.

   3. Connect the spray lance.

Remedy:

1. Clean the high-pressure nozzle:

   1. Use a needle to remove dirt from the nozzle drill.

   2. Rinse the high-pressure nozzle from the front with water.

2. Check the water supply volume.

Remedy:

1. The device leaks a small amount for technical reasons. If the leak is severe, request authorised Customer Service.

Remedy:

1. Use the Vario Power spray lance and turn it all the way in the "SOFT" direction.

2. Clean the filter on the detergent suction hose.

3. Check the detergent suction hose for kinks.

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

You can find more detailed information at: www.kaercher.com/dealersearch

• K 4 WCM 

• K 4 WCM Premium 

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: 1.324-xxx

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

2014/30/EU

2011/65/EU

2000/14/EC

2009/125/EC

(EU) 2019/1781

EN 60335-1

EN 60335-2-79

EN 62233: 2008

EN 55014-1: 2017 + A11: 2020

EN 55014-2: 2015

EN 61000-3-2: 2014

EN 61000-3-3: 2013

EN IEC 63000: 2018

2000/14/EG: Annex V

K 4 WCM

Measured: 83

Guaranteed: 86

K 4 WCM Premium

Measured: 84

Guaranteed: 86

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, 2022/09/01