K 7 WCM K 7 WCM Premium
59787650 (01/23)
59787650 (01/23)
Read this safety chapter and these original instructions before using the device for the first time. Act in accordance with them. Keep the original instructions for future reference or for future owners.
In addition to the notes in the operating instructions, you also need to take into consideration the general safety regulations and accident prevention guidelines applicable by law.
Warnings and information notices attached to the device provide important information for hazard-free operation.
Indication of an imminent threat of danger that will lead to severe injuries or even death.
Indication of a potentially dangerous situation that may lead to severe injuries or even death.
Indication of a potentially dangerous situation that may lead to minor injuries.
Indication of a potentially dangerous situation that may lead to damage to property.
Operation in explosive atmospheres is prohibited.
Never suction solvents, liquids containing solvents or undiluted acids. This includes e.g. petrol, paint thinner or heating oil. The spray mist is highly flammable, explosive and poisonous.
Damaged wheels / tyre valves are extremely dangerous. Damaged wheels / tyre valves can be damaged by the high-pressure jet and explode. The first sign of this is discolouration of the tyres. Keep a spray distance of at least 30 cm when cleaning the wheels / tyre valves.
Do not use the device if people without the proper protective clothing are in its reach.
Do not aim the high-pressure jet at yourself, e.g. to clean clothes or shoes.
Do not direct the high-pressure jet at persons, animals, live electrical equipment or at the device itself.
Do not spray any objects which contain harmful substances (e.g. asbestos).
Check the device and the accessories, such as the high-pressure hose, high-pressure gun and safety devices, to make sure they are in proper safe and reliable condition before each operation. Do not use the device if it is damaged. Replace damaged components immediately.
Only use high-pressure hoses, control panels and couplings specified by the manufacturer.
Risk of scalding. When disconnecting the supply or high-pressure hose, hot water can leak out of the connections after operation.
According to the applicable regulations, the appliance may never be used with the drinking water network without a system separator. Ensure that the connection to your house water system, with which the high-pressure cleaner is operated, is equipped with a system separator according to EN 12729 type BA.
Water that has flowed through a system separator is no longer classified as drinkable.
Never leave the device unsupervised while it is in operation.
Recoil force from the water stream emerging at the high-pressure nozzle acts on the high-pressure gun. Keep proper footing and hold the high-pressure gun and spray lance firmly.
Accidents or damage due to the device falling over. Before all actions with or on the device, you must make sure that it is stable.
Do not operate the device at temperatures below 0 °C.
Wear suitable protective clothing and safety goggles to protect yourself from water or dirt backsplash.
Aerosols can be formed when using high-pressure cleaners. Inhaling aerosols can be harmful for your health. Depending on the application, the use of fully shielded nozzles (e.g. surface cleaners) can significantly lower the emission of aqueous aerosols. Depending on the environment to be cleaned, wear a suitable respiratory protective mask of class FFP 2 or comparable to protect yourself from inhaling aerosols if the use of a fully shielded nozzle is not possible.
Only connect protection class I devices to properly earthed power sources.
Only connect the device to alternating current. The voltage indicated on the type plate must match the voltage of the power source.
Only operate the device via a fault current protection switch (maximum 30 mA).
Never touch the mains plug and socket with wet hands.
The mains plug and coupling of the extension cable must be water tight and may not be placed in water. The coupling may not be on the floor. Use cable drums to ensure that the sockets are at least 60 mm above the floor.
All live parts in the work area must be protected against water jets.
Only connect the device to an electrical connection which has been set up by a qualified electrician as per IEC 60364‑1.
Check that the mains connection cable with mains plug is undamaged each time before using the device. To avoid any possible danger, a damaged mains connection cable must be immediately replaced by the manufacturer, or the authorised customer service department or a qualified electrician.
Do not damage the power supply and extension cable by running over it, crushing or yanking it or similar. Protect the power supply cable from heat, oil and sharp edges.
Unsuitable electrical extension cables are dangerous. Only use approved and appropriately marked electrical extension cables with a sufficient line cross section when outdoors: 1‑10 m : 1.5 mm2, 10‑30 m : 2.5 mm2
Always fully unwind the extension cable from the cable drum.
In case of longer breaks in operation and after use, switch off the device at the main switch / device switch and pull the mains plug.
Incorrect use of detergents can cause serious injuries or poisoning.
Keep the detergent out of the reach of children.
Only use the detergents supplied or specified by the manufacturer. The use of other detergents or chemicals can impair the safety of the device.
Always pull out the mains plug before all care and maintenance work.
Have repair work and work on electrical components carried out by the authorised customer service only.
Do not use acetone, undiluted acids or solvents, as they corrode the materials used on the device.
Risk of accidents and injuries. Take into account the weight of the device for transportation and storage. See chapter Technical data in the operating instructions.
Risk of asphyxiation. Keep packaging film out of the reach of children.
Only use the device for its proper use. Take into account the local conditions and beware of third parties, in particular children, when working with the device.
Persons with reduced physical, sensory or mental capabilities and persons lacking experience and knowledge may only use the appliance if they are properly supervised, have been instructed on use of the appliance safely by a person responsible for their safety, and understand the resultant hazards involved.
Children must not operate the device.
Children must be supervised to prevent them from playing with the appliance.
Safety devices are provided for your own protection. Never modify or bypass safety devices.
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
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.
** additionally required
Missing or modified safety devices!
Safety devices are provided for your own protection.
Do not bypass, remove or render ineffective any safety devices.
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.
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. |
Fit the supplied loose parts onto the device before starting up the device.
Place the screws provided and matching screwdriver at the ready.
Attach the transport handle.
Secure the transport handle with 3 screws.
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.
Push in the storage option for the spray lances into the holder on the device.
Hold the storage option in the end position and secure it using a screw.
Push in the storage option for the high-pressure gun into the holder on the device.
Hold the storage option in the end position and secure it using a screw.
Devices without a hose reel
Push in the storage option for the mains connection cable into the holder on the transport handle.
Hold the storage option in the end position and secure it using a screw.
Devices with a hose reel
Attach the holder for the hose reel.
Secure the holder using 2 screws.
Attach the hose reel.
The hose reel locks into place.
Screw the water connection coupling onto the water connection on the device.
Take care not to exceed the maximum permissible mains impedance at the connection point (see chapter Technical data).
Contact your electricity supplier in the case of any uncertainties regarding the mains grid impedance at your electrical connection point.
Place the device on a flat and level surface.
Unwind the high-pressure hose and eliminate any loops and twists.
Devices with a hose reel During operation, the high-pressure hose must be completely unwound from the hose reel.
Insert the high-pressure hose into the high-pressure gun until it audibly latches into place.
Take care to ensure the correct alignment of the nipple.
Insert the high-pressure hose into the quick coupling until it audibly latches into place.
Check for a secure connection by pulling on the high-pressure hose.
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.
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).
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.
Plug the garden hose onto the water connection coupling.
Connect the garden hose to the water line.
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.
Fill the suction hose with water.
Screw the suction hose onto the device water connection and hang it in a water source (e.g. water butt).
Switch the device on "I/ON".
Unlock the lever of the high-pressure gun.
Press the lever of the high-pressure gun.
The device switches on.
Allow the device for run a maximum of 2 minutes until the water escaping from the high-pressure gun is free of air bubbles.
Release the lever of the high-pressure gun.
Lock the lever of the high-pressure gun.
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.
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.
Insert a spray lance into the high-pressure gun and lock it by turning it 90°.
Switch the device on ("I/ON").
Unlock the lever of the high-pressure gun.
Press the lever of the high-pressure gun.
The device switches on.
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.
KÄRCHER detergents ensure fault-free operation. Ask us for a consultation, request our catalogue or our detergent information sheets.
Detergent can only be mixed into the jet at low pressure.
Pull the desired length of the detergent suction hose out of the casing.
Hang the detergent suction hose in a container with detergent solution.
Use the Vario Power spray lance.
Turn the spray lance all the way into the "SOFT" position.
The detergent solution is mixed with the water jet during operation.
Spray the detergent sparingly on the dry surface and let it work for a while (do not let it dry).
Rinse off the loosened dirt with the high-pressure jet.
Flush the device with clear water for approx. 30 seconds.
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.
Lock the lever of the high-pressure gun.
Switch the device off "0/OFF" during work breaks longer than 5 minutes.
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.
Release the lever of the high-pressure gun.
Close the water tap.
Press the lever of the high-pressure gun for 30 seconds.
The pressure remaining in the system is discharged.
Release the lever of the high-pressure gun.
Lock the lever of the high-pressure gun.
Disconnect the device from the water supply.
Switch off the device "0/OFF".
Pull the mains plug out of the socket.
Failure to observe the weight
Risk of injury and damage
Be aware of the weight of the device during transportation.
Pull the device via the transport handle.
Secure the device against slipping and tipping over.
Failure to observe the weight
Risk of injury and damage
Be aware of the weight of the device during storage.
Place the device on a level surface.
Disconnect the spray lance from the high-pressure gun.
Press the separation button on the high-pressure gun and disconnect the high-pressure hose from the high-pressure gun.
Press the casing of the high-pressure hose quick coupling in the direction of the arrow and pull out the high-pressure hose.
Stowing the high-pressure hose.
Devices without a hose reel
Store the high-pressure hose on the device.
Devices with a hose reel
Insert one end of the high-pressure hose into the opening at the front of the hose reel.
Turn the crank to wind up the high-pressure hose.
While doing so, guide the high-pressure hose with the second hand.
Fasten the coiled high-pressure hose to the hose reel with the high-pressure hose clip.
Stow the mains connection cable on the device.
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.
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.
Switch the device on "I/ON".
Wait for a maximum of 1 minute until no more water escapes from the high-pressure connection.
Switch off the device.
Store the device in a frost-protected room, together with all accessories.
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.
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.
Remove the water connection coupling.
Pull the sieve out.
Clean the sieve under running water.
Insert the sieve into the water connection.
Clean the detergent filter before longer periods of storage.
Pull the filter off the detergent suction hose.
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.
Danger of electric shock
Injuries due to touching live parts
Switch off the device.
Remove the mains plug.
Device not running
Remedy:
Press the lever of the high-pressure gun.
The device switches on.
Check that the voltage specified on the type plate corresponds to the voltage of the power source.
Check the mains connection cable for damage.
If the motor is overloaded and the motor circuit breaker has triggered:
Switch off the device "0/OFF".
Allow the device to cool down for 1 hour.
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
Cause:
Voltage drop due to a weak mains grid or when using an extension cable
Remedy:
When switching on, first press the lever on the high-pressure gun and then switch on the device "I/ON".
Device does not reach required pressure
Cause:
The water supply is too low.
Remedy:
Open the water tap fully.
Check the water inlet for an adequate flow rate.
Check the setting at the spray lance.
Check that the maximum suction height is not exceeded.
Cause:
The sieve in the water connection is dirty.
Remedy:
Pull the sieve in the water connection out using flat pliers.
Clean the sieve under running water.
Cause:
Air is in the device.
Remedy:
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.
Remedy:
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.
Check the water supply volume.
Device leaking
Remedy:
The device leaks a small amount for technical reasons. If the leak is severe, request authorised Customer Service.
Remedy:
Use the Vario Power spray lance and turn it all the way in the "SOFT" direction.
Clean the filter on the detergent suction hose.
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
Electrical connection | |
Voltage | 230 V |
Phase | 1 ~ |
Frequency | 50 Hz |
Maximum permissible mains grid impedance | 0,0377 +j0,0236 Ω |
Power rating | 3,0 kW |
Degree of protection | IPX5 |
Protection class | I |
Power protection (slow-blowing) | 16 A |
Water connection | |
Feed pressure (max.) | 1,2 MPa |
Input temperature (max.) | 60 °C |
Input amount (min.) | 12 l/min |
Suction height (max.) | 0,5 m |
Device performance data | |
Operating pressure | 15 MPa |
Max. permissible pressure | 18 MPa |
Water flow rate | 9,2 l/min |
Maximum flow rate | 10 l/min |
Detergent flow rate | 0,3 l/min |
High-pressure gun recoil force | 27 N |
Dimensions and weights | |
Typical operating weight | 18,8 kg |
Length | 355 mm |
Width | 369 mm |
Height | 946 mm |
Determined values in acc. with EN 60335-2-79 | |
Hand-arm vibration value | 2,3 m/s2 |
Uncertainty K | 0,7 m/s2 |
Sound pressure level LpA | 75 dB(A) |
Uncertainty KpA | 3 dB(A) |
Sound power level LWA + uncertainty KWA | 91 dB(A) |
Electrical connection | |
Voltage | 230 V |
Phase | 1 ~ |
Frequency | 50 Hz |
Maximum permissible mains grid impedance | 0,0377 +j0,0236 Ω |
Power rating | 3,0 kW |
Degree of protection | IPX5 |
Protection class | I |
Power protection (slow-blowing) | 16 A |
Water connection | |
Feed pressure (max.) | 1,2 MPa |
Input temperature (max.) | 60 °C |
Input amount (min.) | 12 l/min |
Suction height (max.) | 0,5 m |
Device performance data | |
Operating pressure | 15 MPa |
Max. permissible pressure | 18 MPa |
Water flow rate | 9,2 l/min |
Maximum flow rate | 10 l/min |
Detergent flow rate | 0,3 l/min |
High-pressure gun recoil force | 27 N |
Dimensions and weights | |
Typical operating weight | 19,3 kg |
Length | 394 mm |
Width | 369 mm |
Height | 946 mm |
Determined values in acc. with EN 60335-2-79 | |
Hand-arm vibration value | 2,3 m/s2 |
Uncertainty K | 0,7 m/s2 |
Sound pressure level LpA | 75 dB(A) |
Uncertainty KpA | 3 dB(A) |
Sound power level LWA + uncertainty KWA | 91 dB(A) |
4-2-HC-A5-GS