LogoK 4 Compact UM
  • General notes
  • Environmental protection
  • Intended use
  • Accessories and spare parts
  • Scope of delivery
  • Description of the device
  • Safety devices
    • Power switch
    • High-pressure gun lock
    • Auto-stop function
  • Symbols on the device
  • Assembly
    • Fitting the wheels
    • Installing the water connection coupling
  • Initial startup
    • Water supply
      • Connection to the water line
      • Sucking water from open containers
    • Vent the device
  • Operation
    • High-pressure operation
    • Operation with a washing brush
    • Operation with detergent
      • Recommended cleaning method
      • After operation with detergent
    • Interrupting operation
    • Ending operation
  • Transport
    • Carrying the device
    • Pulling the device
    • Transporting the device in a vehicle
  • Storage
    • Storing the device
    • Frost protection
  • Care and service
    • Clean the sieve in the water connection
    • Clean the detergent filter
  • Troubleshooting guide
    • Device not running

    • Device does not reach required pressure

    • Strong pressure fluctuations
    • Device leaking

    • Detergent is not sucked in
  • Technical data
  • EU Declaration of Conformity

      K 4 Compact UM

      59695400 (01/21)

      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 appliances 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 appliance. Appliances 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.

      Description of the device

      The maximum amount of equipment is described in these operating instructions. Depending on the model used, there are differences in the scope of delivery (see packaging).


      1. Transport wheel
      2. Storage for high-pressure hose and mains connection cable
      3. Storage for spray lance
      4. Storage for high-pressure gun
      5. Spray lance with dirt grinder for stubborn soiling
      6. 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 high-pressure 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.
      7. High-pressure gun
      8. Button for separating the high-pressure hose from the high-pressure gun
      9. High-pressure gun lever
      10. High-pressure gun lock
      11. High-pressure hose
      12. Mains connection cable with mains plug
      13. Trigger "0/OFF" / "I/ON"
      14. Carrying handle
      15. Transport handle, telescoping
      16. Coupling for high-pressure hose
      17. Type plate
      18. Water connection with integrated sieve
      19. Suction hose for detergent (with filter)
      20. Water connection coupling
      21. **Garden hose (fabric reinforced, diameter at least 1/2 inch (13 mm), length at least 7.5 m, with commercially available quick coupling)
      22. **KÄRCHER suction hose for water supply from open containers (order no. 2.643-100.0)
      23. *Foam nozzle with detergent container: The detergent is sucked out of the container to produce a strong detergent foam.
      24. *Rotating washing brush (e.g. for washing cars)

      * optional, ** additionally required

      Safety devices

      CAUTION

      Missing or modified safety devices

      Safety devices are provided for your own protection.

      Never modify or bypass 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.

      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.

      Assembly

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

      Fitting the wheels

      1. Fasten and secure the wheels to the device.


      Installing the water connection coupling

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


      Initial startup

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

      2. Connect the high-pressure hose to the device.

        1. Pull out the clamp on the coupling.

        2. Insert the high-pressure hose into the coupling.

        3. Insert the clamp into the coupling.


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

      5. 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.

      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°.


      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 a washing brush

      ATTENTION

      Paint damage

      Damage to surfaces through a dirty brush

      Ensure that the washing brush is free from dirt or other particles before using it.

      Note

      The device operates at low pressure when using washing brushes. This means that detergent can be mixed with the water.

      1. Insert the washing brush into the high-pressure gun and turn by 90° to fasten it.

      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.

      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 in the "SOFT" direction.

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

      5. You can optionally use the foam nozzle.

        1. Fill the detergent solution into the detergent tank. Adhere to the dosage specifications on the detergent container.

        2. Connect the foam nozzle to the detergent container.

        3. Insert the foam nozzle into the high-pressure gun and turn by 90° to fasten it.


      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.

      Interrupting operation

      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.

      Ending operation

      CAUTION

      Pressure in the system

      Injuries from high-pressure water escaping uncontrollably

      Only disconnect the high-pressure hose from the high-pressure 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.

      Carrying the device

      1. Lift up the device by the carrying handle, and carry it.

      Pulling the device

      1. Pull the transport handle out until it audibly latches into place.

      2. Pull the device via the transport handle.

      Transporting the device in a vehicle

      1. Secure the device against slipping and tipping over.

      Storage

      CAUTION

      Failure to observe the weight

      Risk of injury and damage

      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. Disconnect the high-pressure hose from the device.

      5. Store the high-pressure hose on the device.

      6. Store the mains connection cable and accessories on the device.

      Observe the additional notes before storing the device for a long 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 using flat pliers.

      3. Clean the sieve under running water.


      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.


      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 

      • Device does not reach required pressure 

      • Strong pressure fluctuations 

      • Device leaking 

      • Detergent is not sucked in 

      Device not running

      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.

      Device does not reach required pressure

      Cause:

      The water supply is too low

      Remedy:

      1. Open the water tap fully.

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

      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 high-pressure hose for a maximum of 2 minutes until the water escaping from the high-pressure connection is free of air bubbles.

        2. Switch off the device.

        3. Connect the high-pressure hose.

        4. Observe the maximum suction height during suction operation (see chapter Technical data).

      Strong pressure fluctuations

      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.

      Device leaking

      Remedy:

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

      Detergent is not sucked in

      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.

      Technical data

        

      Electrical connection
      Voltage
      220-240 V
      Phase
      1 ~
      Frequency
      50-60 Hz
      Power rating
      1,8 kW
      Degree of protection
      IPX5
      Protection class
      II
      Power protection (slow-blowing)
      10 A
      Water connection
      Feed pressure (max.)
      1,2 MPa
      Input temperature (max.)
      40 °C
      Input amount (min.)
      9 l/min
      Suction height (max.)
      0,5 m
      Device performance data
      Operating pressure
      11 MPa
      Max. permissible pressure
      13 MPa
      Water flow rate
      5,2 l/min
      Maximum flow rate
      7,0 l/min
      Detergent flow rate
      0,3 l/min
      High-pressure gun recoil force
      13 N
      Dimensions and weights
      Typical operating weight
      5,9 kg
      Length
      273 mm
      Width
      256 mm
      Height
      456 mm
      Determined values in acc. with EN 60335-2-79
      Hand-arm vibration value
      < 2,5 m/s2
      Uncertainty K
      0,7 m/s2
      Sound pressure level LpA
      77 dB(A)
      Uncertainty KpA
      3 dB(A)
      Sound power level LWA + K uncertaintyWA
      92 dB(A)

      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: 1.639-xxx

      Currently applicable EU Directives

      2000/14/EC

      2014/30/EU

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

      2011/65/EU

      Harmonised standards used

      EN IEC 63000:2018

      EN 55014-1: 2017

      EN 55014-2: 2015

      EN 60335-1

      EN 60335-2-79

      EN 61000-3-2: 2014

      EN 61000-3-3: 2013

      EN 62233: 2008

      Conformity evaluation procedure used

      2000/14/EC: Annex V

      Sound power level dB(A)

      Measured: 89

      Guaranteed: 92

      The undersigned act on behalf and under the power of attorney 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, 2020/10/01

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