K RCHER K 4 WCM High Pressure Cleaner Instruction Manual

K RCHER K 4 WCM High Pressure Cleaner

Product Information

The K 4 WCM and K 4 WCM Premium are high-pressure washers manufactured by Kärcher. The pressure washers are designed for home and garden use and come with a variety of features such as a transport wheel, a built-in water filter, a detergent suction hose,and a hose reel. The pressure washers also have safety features such as a motor protection switch, an auto-stop function, and a locking mechanism on the high-pressure gun.

Product Usage Instructions

Assembly:

1. Attach the transport handle to the pressure washer using three screws (see Figure C).
2. Attach the hose reel using the provided instructions (see Figures E and F).

Operation:

1. Connect the pressure washer to a water supply and plug it in.
2. Turn on the water supply and squeeze the trigger on the high-pressure gun until water comes out without any air bubbles.
3. Release the trigger and lock it in place.
4. Start the pressure washer by turning it on.
5. To use detergent, fill the detergent tank and attach the detergent suction hose to the pressure washer. Press the detergent application button on the high-pressure gun to apply detergent to the surface you want to clean (see Figure P).
6. To stop using detergent, release the detergent application button and lock the trigger on the high-pressure gun.
7. When you are finished using the pressure washer, turn it off and unplug it from the power source.

Maintenance:

1. Clean the water filter regularly by removing it from the water inlet and rinsing it under running water (see Figure S).
2. Clean the detergent filter by removing it from the detergent suction hose and rinsing it under running water (see Figure T).
3. Store the pressure washer in a dry and frost-free place.

General notes
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.

Environmental protection
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.
Notes on the content materials (REACH)
Current information on content materials can be found at: www.kaercher.de/REACH

Intended use
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.

Accessories and spare parts
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.

Scope of delivery
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.

Device description

For the illustrations, refer to the graphics page

• Illustration A
• Illustration B

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 tasks
   The working pressure can be continuously increased from “SOFT” to “HARD”. To adjust the working pressure, release the trigger gun lever andturn 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

Safety devices

CAUTION
Missing or modified safety devices!
Safety devices are provided for your own protection.
Do not bypass, remove or render ineffective any safety devices.

• Power switch
  The power switch prevents unintentional operation of the device.

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

• Auto-stop function
  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.

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

Symbols on the device

Do not aim the high-pressure jet may at persons, animals, live electrical equipment or the device itself.
Protect the device against frost.
The device may not be connected to the public drinking water network.

Installation

For the illustrations, refer to the graphics page.
Fit the supplied loose parts onto the device before starting up the device.
Place the screws provided and matching screwdriver at the ready.

Mounting the transport handle

1. Attach the transport handle.
2. Secure the transport handle with 3 screws.

Illustration C
Mounting the storage option for the high-pressure hose / mains connection cable

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.

Illustration D
Mounting the storage option for spray lances

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.

Illustration E
Mounting the storage option for the highpressure gun

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.

Illustration F
Mounting the storage option for the mains connection cable

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.

Illustration G
Mounting the high-pressure hose reel
Devices with a hose reel

1. Attach the holder for the hose reel.
2. Secure the holder using 2 screws.

Illustration H

1. Attach the hose reel.
   The hose reel locks into place.

Illustration I
Installing the water connection coupling

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

Illustration J

Initial startup

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 highpressure 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.
   Illustration K
   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.
   Illustration L

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

6. Plug the mains plug into a mains socket.

Water supply

For the connection values, see the type plate or chapter

Technical data.
Observe the water distribution company regulations.

ATTENTION
Damage through contaminated water
Contamination in the water can damage the pump and the accessories.

KÄRCHER recommends using the KÄRCHER water filter for protection(special accessory, order number 4.730-059).

Connection to the water line

ATTENTION
Hose coupling with Aquastop on the water connection of the device
Damage to the pump
Never use a hose coupling with Aquastop on the water connection of the device.

You can use an Aquastop coupling on the tap.

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

2. Connect the garden hose to the water line.
   Illustration M

3. Open the water tap fully.

Sucking water from open containers
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).

Vent the device

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.

Operation

ATTENTION

Pump running dry
Damage to the device
If pressure does not build up in the device after 2 minutes then switch the device off and proceed according to the instructions in chapter Troubleshooting guide.

High-pressure operation

ATTENTION
Damage to painted or sensitive surfaces
Surfaces can be damaged when the jet is too close to the surface or an unsuitable spray lance is used.
Maintain a minimum spray distance of 30 cm when cleaning painted surfaces.
Do not clean car tyres, paint or sensitive surfaces such as wood with the dirt grinder.

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

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.

Operation with detergent

DANGER
Failure to adhere to the safety data sheet
Incorrect handling of the detergent can seriously damage your health Observe the safety data sheet of the detergent manufacturer, in particular the instructions on personal protective equipment.

Note
KÄRCHER detergents ensure fault-free operation. Ask us for a consultation, request our catalogue or our detergent information sheets.

Note
Detergent can only be mixed into the jet at low pressure.

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

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.

Recommended cleaning method

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.

After operation with detergent

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

Ending operation

CAUTION
Pressure in the system
Injuries from high-pressure water escaping uncontrollably

Only disconnect the high-pressure hose from the highpressure gun or the device when the system is fully depressurised.

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.

Transport

CAUTION
Failure to observe the weight
Risk of injury and damage
Be aware of the weight of the device during transportation.

Pulling the device

1. Pull the device via the transport handle.

Transporting the device in a vehicle

1. Secure the device against slipping and tipping over.

Storage

CAUTION
Risk of injury and damage!
The device may tip over on sloping surfaces.
Be aware of the weight of the device during storage.

Storing the device

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

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

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

8. While doing so, guide the high-pressure hose with the second hand.
   Illustration Q

9. Fasten the coiled high-pressure hose to the hose reel with the high-pressure hose clip.
   Illustration R

10. Stow the mains connection cable on the device.

11. 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.

Frost protection

ATTENTION
Danger of frost
Incompletely emptied devices can be destroyed by frost.
Completely empty the device and accessories.
Protect the device from frost.
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.

Care and service

DANGER
Danger of electric shock
Injuries due to touching live parts Switch off the device.

Remove the mains plug.
The device is maintenance-free, i.e. you do not need to perform any maintenance work.
Clean the sieve in the water connection

ATTENTION
Damaged sieve in the water connection
Damage to the device through contaminated water Check the sieve for damage before inserting it in the water connection.

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.
   Illustration S

4. Insert the sieve into the water connection.

Clean the detergent filter
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.
   Illustration T

Troubleshooting guide

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.

DANGER
Danger of electric shock
Injuries due to touching live parts Switch off the device.

Remove the mains plug.

Device not running

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:

5. Switch off the device “0/OFF”.

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

7. Switch the device on “I/ON” and resume operation.

Have the device checked by Customer Service if this fault occurs repeatedly.
The device does not start up, the motor buzzes Voltage drop due to a weak mains grid or when using an extension cable

1. When switching on, first press the lever on the highpressure gun and then switch on the device “I/ON”.

Device does not reach required pressure

The water supply is too low.

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.

The sieve in the water connection is dirty.

1. Pull the sieve in the water connection out using flat pliers.
2. Clean the sieve under running water.
   Illustration S

Air is in the device.

1. Vent the device:
   • Switch on the device without a connected spray lance for a maximum of 2 minutes.
   • Press the high-pressure gun and wait until the water escaping from the high-pressure gun is free of air bubbles.
   • Connect the spray lance.

Strong pressure fluctuations

1. Clean the high-pressure nozzle:
   • Use a needle to remove dirt from the nozzle drill.
   • Rinse the high-pressure nozzle from the front with water.
2. Check the water supply volume.

Device leaking

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

Detergent is not sucked in

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.

Warranty

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 defect is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site.
(See overleaf for the address)

Technical data

Exception according to Regulation (EU) 2019/1781 Annex I Section 2 (12): j)
Subject to technical changes without notice.

EU Declaration of Conformity

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

Currently applicable EU Directives
2006/42/EC (+2009/127/EC)
2014/30/EU
2011/65/EU
2000/14/EC
2009/125/EC

Commission Regulation(s)
(EU) 2019/1781

Harmonised standards used
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

Applied conformity evaluation method
2000/14/EG: Annex V
Sound power level dB(A)
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

THANK YOU!
Register your product and benefit from many advantages.

www.kaercher.com/welcome

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Alfred Kärcher SE & Co. KG
Alfred-Kärcher-Str. 28-40
71364 Winnenden (Germany)

www.kaercher.com/welcome

References

• Cher - Official Site
• Cleaning equipment and pressure washers | Kärcher International
• Dealer Search | Kärcher International
• Home and Garden Warranty Registration USA - Kärcher
• Reinigungsgeräte und Hochdruckreiniger | Kärcher

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