Read these original operating instructions and the safety instructions of the engine before using the device for the first time. Act in accordance with them. Keep all booklets 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 regulations applicable by law.

• Warnings and information notices attached to the device provide important information for hazard-free operation.

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 that produces oily waste water, e.g. washing engines or undercarriages etc., may only be performed at washing stations with an oil separator.

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

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

Use the high-pressure cleaner in private households only.

Never operate the device in confined spaces.

The device 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.

The power switch prevents unintentional operation of the device.

Locking the trigger:

1. Fold up the pawl on the trigger until it latches in the groove on the rear handle of the high-pressure gun.

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   The trigger is locked.

Unlocking the trigger:

2. Disengage the pawl from the groove on the rear handle of the high-pressure gun and fold it onto the trigger.

   The trigger is unlocked.

The thermostat valve opens when the maximum permissible water temperature is exceeded and discharges the hot water outdoors.

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

1. Position the wheel axle in the mount on the device frame as shown.

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2. Press the spring-loaded pin and push the wheel axle into the mount until the spring-loaded pin engages in the hole.

3. Install the second wheel in the same way.

1. Pull the spring cotter out of the left and right bolts.

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2. Remove the washer from the left and right bolts.

3. Pull the left and right bolts out of the device frame.

4. Pull the ring and put the handle on the device frame.

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5. Release the ring and engage the locking pin in the mounting hole on the handle.

6. Push the left and right bolts through from the outside.

7. Slide the washer onto the left and right bolts.

8. Mount the spring cotter on the left and right bolts

1. Install the high pressure gun holder on the left side of the handle with the M5x38 screws, washers and M5 stop nuts.

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1. Pull the cap out of the union nut on the water spigot.

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2. Remove the water sieve from the cap.

3. Carefully fit the water sieve into the union nut on the water spigot.

4. Screw the coupling plug into the union nut on the water spigot.

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5. Hold the square end of the coupling plug with an open-end wrench and hand-tighten the union nut.

   Note

   Removal is performed in the reverse sequence.

1. Screw the spray lance onto the high-pressure gun and hand-tighten the union nut.

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   Note

   Removal is performed in the reverse sequence.

1. ATTENTION

   Risk of damage!

   Operating the engine with unsuitable oil or too high or too low an engine oil level can lead to increased engine wear and damage.

   Only fill with engine oil that complies with the specifications in the operating instructions for the engine.

   Ensure that the engine oil level is always within the designated range between the MIN and MAX marks.

   Fill the engine oil provided into the engine crankcase using the funnel, see the operating instructions for the engine.

1. Unscrew the screw plug from the oil filler opening in a counter-clockwise direction using a ring spanner or socket spanner with a spanner size of 16 mm.

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2. Screw the crankcase ventilation valve with the sealing ring clockwise into the oil filler opening and hand-tighten.

Observe the safety instructions!

1. Before initial startup, read the operating instructions for the engine and observe the safety instructions in particular.

2. Check the general condition of the engine and attachments, see the engine operating instructions.

3. Check the engine oil level and correct if necessary, see the engine operating instructions.

1. Check high-pressure pump oil level and correct it if necessary, see chapter Checking/correcting the high pressure pump oil level (before each motor start).

1. Fill the fuel tank with suitable fuel, see the engine operating instructions.

1. Pull back the ring on the high-pressure hose coupling.

2. Push the high-pressure hose spigot into the high-pressure hose coupling as far as it will go and release the ring.

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3. Pull back the ring on the high-pressure gun coupling.

4. Push the high-pressure gun spigot into the high-pressure gun coupling as far as it will go and release the ring.

   Note

   Removal is performed in the reverse sequence.

1. Select the jet nozzle suitable for the cleaning task.

• Black jet nozzle (SOAP)

  For applying detergents and working at low pressure.

• White jet nozzle, 40° jet angle

  For light soiling on large surfaces and working at moderate pressure.

• Green jet nozzle, 25° jet angle

  For heavier soiling on large surfaces and working at high pressure.

• Yellow jet nozzle, 15° jet angle

  For stubborn dirt and working at very high pressure.

• ATTENTION

  Risk of damage!

  When using a point jet nozzle, there is a risk of damage to sensitive surfaces!

  Do not use the point jet nozzle for soft, sensitive or painted surfaces, vehicles, façades, wood etc.

  Red jet nozzle, 0° jet angle, point jet

  For the most stubborn dirt and work with maximum pressure.

1. Fit a jet nozzle suitable for the cleaning task onto the spray lance, see chapter Selecting the jet nozzle and chapter Changing the jet nozzle.

1. ATTENTION

   Risk of damage through contaminated water!

   Contamination in the water can damage the high-pressure pump and accessories.

   Operate the device only with clear fresh water without contamination or additives.

   Never use contaminated water, waste water or salt water.

   Check the pressure, temperature and quantity of the supply water for compliance with the requirements, see chapter Technical data.

   Note

   Observe the water distribution company regulations.

1. Attach the coupling socket of the water hose to the coupling plug.

2. Connect the water hose to the water tap of the water line.

3. Open the water tap fully.

1. Open the water tap fully.

2. Remove the jet nozzle from the spray lance, see chapter Changing the jet nozzle.

3. Start the engine, see engine operating instructions.

4. Unlock the trigger of the high-pressure gun, see chapter Trigger lock.

5. Press the trigger of the high-pressure gun until the water comes out of the spray lance without bubbles.

   The device is vented.

6. Release the trigger of the high-pressure gun.

7. Lock the trigger of the high-pressure gun, see chapter Trigger lock.

8. Fit the jet nozzle onto the spray lance, see chapter Changing the jet nozzle.

1. Before starting the motor, always check the high-pressure pump oil level and correct it if necessary, see chapter Checking/correcting the high pressure pump oil level (before each motor start).

2. Open the water tap fully.

3. Unlock the trigger of the high-pressure gun, see chapter Trigger lock.

4. Pull the trigger and start the engine, see the operating instructions for the engine.

   Note: The spray lance or the jet nozzle can be removed to facilitate the starting procedure, see chapter Installing the spray lance on the high-pressure gun or Changing the jet nozzle.

5. Release the trigger when the engine is running.

6. Lock the trigger of the high-pressure gun, see chapter Trigger lock.

7. Let the cold engine warm up for 1 min.

1. Unlock the trigger of the high-pressure gun, see chapter Trigger lock.

2. ATTENTION

   Risk of damage!

   There is a risk of damage if the distance between the jet nozzle and sensitive or painted surfaces is too small!

   Always keep a sufficiently large spray distance from sensitive or painted surfaces.

   Do not remain in one area, but rather keep the high-pressure gun moving.

   Do not clean car tyres, paint or sensitive surfaces such as e.g. wood with the point jet nozzle.

   First test the cleaning effect on an inconspicuous spot.

   Pull the trigger and carry out the cleaning process.

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   Note

   Guide the spray lance at an angle of approx. 45° to the surface to be cleaned.

   Keep a distance of approx. 15...20 cm (6"...8") between the jet nozzle and the surface to be cleaned.

   Regulate the high pressure according to the cleaning task by reducing or increasing the engine speed, see the operating instructions of the engine.

   Do not reduce the engine speed too much, otherwise the engine will stop.

3. Adjust the high pressure by turning the high-pressure adjustment wheel.

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   ATTENTION

   Risk of damage!

   Turning the high-pressure adjustment wheel too far counter-clockwise will disassemble the high-pressure adjustment valve.

   Turn the high-pressure adjustment wheel counter-clockwise no more than 4 turns from its maximum position.

   Note

   The maximum possible high pressure is set at the factory.

   Reducing high pressure: Turn the high-pressure adjustment wheel counter-clockwise no more than 4 turns from its maximum position.

   Increasing high pressure: Turn the high-pressure adjustment wheel clockwise.

1. Install the black jet nozzle (SOAP) on the spray lance, see chapter Changing the jet nozzle.

2. Pull off the lid on the detergent tank.

3. Fill the detergent tank with a detergent suitable for the cleaning task.

4. Put the lid on the detergent tank.

5. ATTENTION

   Risk of damage due to detergents acting too long and drying out!

   Detergent can damage hot surfaces and damage surfaces if left to act for too long.

   Do not apply detergent to hot surfaces and observe the maximum contact time.

   Do not allow detergent to dry on the surfaces being cleaned.

   Pull the trigger of the high-pressure gun and spray the detergent sparingly onto the dry surfaces.

6. Allow the detergent to act, but not to dry.

7. Replace the black jet nozzle (SOAP) with a jet nozzle suitable for the cleaning task, see chapter Changing the jet nozzle.

8. Rinse off loose dirt.

1. ATTENTION

   Risk of damage due to dried detergent!

   Dried detergent can damage the device.

   Rinse the device after each use of detergent.

   Replace the black jet nozzle (SOAP) on the spray lance with a high-pressure jet nozzle, see chapter Changing the jet nozzle.

2. Unlock the trigger of the high-pressure gun, see chapter Trigger lock.

3. Press the trigger for 1 min to flush the detergent out of the device.

1. DANGER

   Danger to life and risk of injury from the high-pressure water jet!

   A high-pressure water jet may be emitted from the pressurised device.

   Depressurise the device before releasing, removing or installing the high-pressure hose or the high-pressure gun.

   Lock the trigger of the high-pressure gun before releasing, removing or installing the jet nozzle or spray lance.

   Lock the trigger of the high-pressure gun, see chapter Trigger lock.

2. Pull back the ring on the jet nozzle coupling and pull off the jet nozzle.

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3. Insert the desired jet nozzle into the jet nozzle coupling and release the ring on the jet nozzle coupling.

   Note

   Use the black jet nozzle (SOAP) to add detergent or to work at low pressure.

4. Pull the jet nozzle to check that it is correctly seated. If necessary, fit the jet nozzle back into the jet nozzle coupling.

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

   Note: The engine continues to run after releasing the trigger.

2. Lock the trigger of the high-pressure gun, see chapter Trigger lock.

3. WARNING

   Danger of scalding when opening the thermostat valve!

   When the thermostat valve is opened, hot water escapes which can cause scalding.

   Do not bring any parts of your body near the outlet opening of the thermostat valve.

   Stop the engine of the device if interruptions in operation last longer than 1 min.

   Stop the engine if the interruption of operation lasts longer than 1 min, see the engine operating instructions.

1. Stop the engine, see engine operating instructions.

2. Pull the trigger of the high-pressure gun until the high pressure is completely released.

1. Close the water tap.

2. Depressurise the device, see chapter Depressurising the device.

3. Lock the trigger of the high-pressure gun, see chapter Trigger lock.

4. Remove the water hose at the coupling plug.

5. Remove the high-pressure hose from the high-pressure hose coupling, see chapter Mount the high-pressure hose on the high-pressure hose coupling and high-pressure gun.

6. Remove the high-pressure hose from the high-pressure gun, see chapter Mount the high-pressure hose on the high-pressure hose coupling and high-pressure gun.

7. Wind up the high-pressure hose and fasten it on the hook and loop strip.

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8. Hang the high-pressure gun in the high-pressure gun holder.

9. Allow the device to cool down.

1. Grasp the handle and tilt the device backwards via the wheels by max. 45°.

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2. Pull or push the device by the handle.

1. If necessary, fold the handle over, see chapter Folding the handle.

2. Before transporting the device, stow or secure the device and the accessories so that they will not slip or be thrown around when accelerating, braking, cornering or in the event of an accident.

1. Close the water tap.

2. Remove the coupling socket of the water hose at the coupling plug.

3. Start the engine, see engine operating instructions.

4. Unlock the trigger of the high-pressure gun, see chapter Trigger lock.

5. Operate the trigger lever for max. 1 min until the water is completely expelled from the device.

6. Stop the engine, see engine operating instructions.

7. Remove the high-pressure hose from the high-pressure hose coupling and the high-pressure gun, see chapter Mount the high-pressure hose on the high-pressure hose coupling and high-pressure gun.

8. Allow the water to drain completely from the high-pressure hose and the high-pressure gun with spray lance.

9. Wind up the high-pressure hose and fasten it on the hook and loop strip.

10. Hang the high-pressure gun in the high-pressure gun holder.

11. Allow the device to cool down.

12. If necessary, fold the handle over, see chapter Folding the handle.

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

1. Finish operation, see chapter Ending operation.

2. Remove the high-pressure gun from the high-pressure gun holder.

3. Pull the ring to release the locking pin from the mounting hole on the handle.

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4. Fold the handle forward and release the ring.

5. Fold the handle forward until the locking pin engages in the mounting hole on the handle.

   Note

   Raising the handle is done in the same way as folding it.

Timely and correctly performed maintenance is a prerequisite for the safety, economy and reliable, trouble-free operation of the device. This also helps to reduce environmental pollution.

ATTENTION

Risk of damage!

Operating the high-pressure pump with unsuitable oil or too high or too low of an oil level can lead to increased wear and damage.

Only use oil that complies with the specifications in the operating instructions.

Make sure that the oil level is always in the designated range.

Checking the condition of the high-pressure pump oil

1. Stop the engine, see engine operating instructions.

2. Place the device in a horizontal position.

3. ATTENTION

   Risk of damage!

   Dirty high-pressure pump oil can damage the high-pressure pump.

   Only operate the device with clean high-pressure pump oil that complies with the specifications in the operating instructions.

   Check the condition of the high pressure pump oil through the sight glass:

   1. If the high-pressure pump oil is dirty, change the high-pressure pump oil, see chapter Changing the high-pressure pump oil (after 20 h, then every 50 h).

   2. If the high-pressure pump oil is milky, there is water in the oil. Do not start up the device! Contact Kärcher Service.

Checking the high-pressure pump oil level

4. WARNING

   Risk of scalding!

   The high-pressure pump oil can be very hot and cause scalding.

   Allow the device to cool down before draining the high-pressure pump oil.

   Read the high-pressure pump oil level on the sight glass.

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   Note

   The high-pressure pump oil level must be in the middle of the sight glass (red dot).

   If the high-pressure pump oil level is too low, fill new oil into the high-pressure pump crankcase.

   If the high-pressure pump oil level is too high, drain the oil at the crankcase of the high-pressure pump, see chapter Changing the high-pressure pump oil (after 20 h, then every 50 h).

Correcting the high-pressure pump oil level

5. Clean the crankcase ventilation valve and the surrounding area with a clean cloth.

6. Unscrew the crankcase ventilation valve.

7. Place the funnel in the oil filler opening and fill with new oil until the high-pressure pump oil level is centred at the level of the red dot. Observe the oil specifications, see chapter Technical data.

   Do not overfill, drain off excess oil and dispose of it in an environmentally friendly manner in accordance with local regulations.

8. Check the sealing ring for damage and correct fit on the crankcase ventilation valve, replace the sealing ring if necessary or fit it correctly.

9. Screw in the crankcase ventilation valve and hand-tighten.

10. Wash your hands thoroughly with soap and water after each contact with oil.

1. Service the engine according to the instructions in the engine operating instructions.

1. Stop the engine, see engine operating instructions.

2. Close the water tap.

3. Remove the water hose at the coupling plug.

4. Remove the coupling plug on the water spigot, see chapter Installing the coupling plug on the water spigot.

5. Remove the water sieve from the union nut on the water spigot.

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6. Clean the water sieve under running water.

7. Check the water sieve for damage and replace if necessary.

8. Fit the water sieve into the union nut on the water spigot.

9. Mounting the coupling plug on the water spigot, see chapter Installing the coupling plug on the water spigot.

1. Remove the jet nozzle from the spray lance, see chapter Changing the jet nozzle.

2. ATTENTION

   Risk of damage!

   There is a danger of damaging the nozzle geometry when cleaning the jet nozzle.

   Never insert the cleaning needle or other objects into the nozzle opening.

   Only apply the cleaning needle to the back of the jet nozzle.

   Insert the cleaning needle into the jet nozzle from the rear and loosen the dirt.

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3. Flush the jet nozzle with water from the front and rear.

4. Fit the jet nozzle onto the spray lance, see chapter Changing the jet nozzle.

1. Depressurise the device, see chapter Depressurising the device.

2. Remove the high-pressure hose from the high-pressure hose coupling and the high-pressure gun, see chapter Mount the high-pressure hose on the high-pressure hose coupling and high-pressure gun.

3. Replace the sealing rings on the high pressure hose coupling and on the high pressure gun coupling.

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4. Remove the spray lance from the high-pressure gun, see chapter Installing the spray lance on the high-pressure gun.

5. Replace the sealing ring on the front connection of the high-pressure gun.

1. ATTENTION

   Risk of damage when draining the high-pressure pump oil!

   Draining the oil during operation damages the high-pressure pump.

   Do not unscrew the oil drain screw while the device is in operation.

   Stop the motor, see motor operating instructions.

2. WARNING

   Risk of scalding!

   The high-pressure pump oil can be very hot and cause scalding.

   Allow the device to cool down before draining the high-pressure pump oil.

   Allow the device to cool down.

3. Place a suitable container (oil-resistant, capacity min. 0.5 l) under the drain screw.

4. Unscrew the drain screw counter-clockwise using a ring or socket spanner with a spanner size of 17 mm.

5. Allow the high-pressure pump oil to drain completely.

6. Replace the sealing ring on the drain screw.

7. Turn the drain screw clockwise and tighten it.

   Tightening torque: 15 Nm.

8. Filling new oil, see chapter Checking/correcting the high pressure pump oil level (before each motor start).

9. Dispose of the old oil in accordance with the environmental and local regulations.

10. Wash your hands thoroughly with soap and water after each contact with oil.

1. WARNING

   Risk of injury and damage due to incorrect tyre pressure!

   Incorrect tyre pressure can cause the tyre to burst. A burst tyre can cause injuries.

   Check the tyre pressure regularly and set it correctly.

   Observe the max. tyre pressure indicated on the tyre.

   Check the tyre pressure and correct it if necessary, see chapter Technical data.

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.

• The engine does not start. 

• The engine has insufficient power. 

• High-pressure pump not building up pressure. 

• Strong pressure fluctuations. 

• Device leaking. 

• High-pressure hose or connections leaking. 

• The high-pressure pump knocks. 

• The detergent is not sucked in. 

Cause:

Various causes possible.

Remedy:

1. See the operating instructions of the engine.

Cause:

Various causes possible.

Remedy:

1. See the operating instructions of the engine.

Cause:

The engine speed is too low.

Remedy:

1. Check the operating speed of the engine and correct if necessary, see the operating instructions for the engine.

Cause:

The black jet nozzle (SOAP) is installed on the spray lance.

Remedy:

1. Replace the black jet nozzle (SOAP) with the white, green, yellow or red jet nozzle, see chapter Changing the jet nozzle.

Cause:

The white, green, yellow or red jet nozzle is damaged, blocked or washed out.

Remedy:

1. Clean the white, green, yellow or red jet nozzle, see chapter Cleaning the jet nozzle (if necessary)or replace it.

Cause:

The water sieve is dirty.

Remedy:

1. Clean the device water sieve, see chapter Cleaning the water sieve (monthly).

Cause:

Air in the system.

Remedy:

1. Vent the device, see chapter Vent the device.

Cause:

The water supply quantity is too low.

Remedy:

1. Open the water tap fully.

2. Check the water supply quantity and increase if necessary, see chapter Technical data.

Cause:

Supply lines to high-pressure pump leaking or clogged.

Remedy:

1. Check the supply lines to the high-pressure pump for blockages, damage and leaks and replace if necessary.

Cause:

The jet nozzle is dirty.

Remedy:

1. Clean the jet nozzle, see chapter Cleaning the jet nozzle (if necessary).

Cause:

The water supply quantity is too low.

Remedy:

1. Open the water tap fully.

2. Clean the device water sieve, see chapter Cleaning the water sieve (monthly).

3. Check the water supply quantity and increase if necessary, see chapter Technical data.

Cause:

Minor leakage due to technical reasons.

Remedy:

1. Minor leakage of the device can occur due to technical reasons and is not a cause for concern.

Cause:

Major leakage.

Remedy:

1. Contact the authorised Customer Service.

Cause:

The high-pressure hose is damaged.

Remedy:

1. Shut the device down immediately and replace the high-pressure hose.

Cause:

The sealing ring of the high-pressure hose coupling or the high-pressure gun coupling is damaged or worn.

Remedy:

1. Replace the sealing ring on the high-pressure hose coupling or the high-pressure gun coupling, see chapter Replacing the sealing rings on the high-pressure hose coupling, high-pressure gun coupling and high-pressure gun (if necessary).

Cause:

The high-pressure gun sealing ring is damaged or worn.

Remedy:

1. Replace the high-pressure gun sealing ring with a new one, see chapter Replacing the sealing rings on the high-pressure hose coupling, high-pressure gun coupling and high-pressure gun (if necessary).

Cause:

The union nut on the water spigot is loose.

Remedy:

1. Hand-tighten the union nut on the water spigot with an open-end wrench, see chapter Installing the coupling plug on the water spigot.

Cause:

The supply lines to the high-pressure pump are leaking.

Remedy:

1. Check the supply lines to the high-pressure pump for leaks and replace if necessary.

Cause:

Air in the system.

Remedy:

1. Vent the device, see chapter Vent the device.

Cause:

The red, yellow, green or white jet nozzle is installed on the spray lance.

Remedy:

1. Install the black jet nozzle (SOAP) on the spray lance, see chapter Changing the jet nozzle.

Cause:

The detergent suction hose is kinked, blocked or leaking.

Remedy:

1. If necessary, route the detergent suction hose without kinks, clean it or replace it.

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