LogoB 50 W 
  • General notes
  • Function
  • Intended use
  • Environmental protection
  • Accessories and spare parts
  • Scope of delivery
  • Safety instructions
    • Safety devices
      • Emergency off
      • Driving lever
    • Symbols on the device
    • Notes on the battery (rechargeable battery) and charger
    • Warning symbols
  • Device description
    • Overview of the device
    • Colour coding
    • Control panel
    • Program switch
    • Suction bar holder
    • Symbols on the device
  • Intelligent Key
  • Installation
    • Unloading the device
    • Installing the suction bar
    • Installing the brushes
    • Batteries
      • Recommended batteries
      • Maximum battery dimensions
      • Installing and connecting batteries
      • Activating the Li-Ion battery
      • Removing the battery
  • Initial startup
    • Setting the charging characteristic
    • Charging the battery
    • Low-maintenance batteries (wet batteries)
  • Switching on the device
  • Pairing with a smartphone
  • Maintenance requests
  • Operation
    • Filling with operating materials
      • Filling with fresh water
      • Filling with fresh water via the filling hose
      • Filling with fresh water via the filling system
      • Notes on detergents
      • Addition of detergent with a dosing device
      • Adding detergent without a dosing device
    • Setting the detergent dosage
    • Adjusting the water quantity
      • Manual water valve
      • Electric water valve
      • Adjusting the inclination of the suction bar
      • Adjusting the height
    • Adjusting the side pull of the brush
    • Switching on the device
    • Driving
    • Cleaning
    • Finishing operation
      • Finishing cleaning
      • Draining the waste water
      • Waste water tank flushing system
      • Draining fresh water at the cap
      • Draining fresh water via the filling level indicator
      • Emptying the coarse dirt container
      • Parking the device
  • Transport
  • Storage
  • Care and maintenance
    • Safety inspection/maintenance contract
    • Maintenance intervals
      • Each time after use
      • Monthly
      • Annually
    • Maintenance work
      • Cleaning the coarse dirt filter
      • Cleaning the water distribution strip
      • Cleaning the fresh water filter
      • Turn over or replace the worn suction lips
      • Replacing the disc brush
      • Replacing the roller brushes
      • Replacing the pad
      • Replacing the pad drive board with pad
  • Troubleshooting guide
    • Malfunctions without information shown on the display
      • The device cannot be started

      • The water quantity is insufficient

      • The suction performance is too low

      • The cleaning results are unsatisfactory

      • The suction turbine runs at an increased speed

      • The brushes do not rotate

      • The device vibrates during cleaning

      • DOSE version only: The detergent dosing device does not work

      • The waste water drain hose is clogged

      • INSERT KIK 
      • INCORRECT KIK

         
      • NO AUTHORISATION

         
      • RELEASE HANDLE SWITCH!

         
      • BATTERY LEVEL LOW

         
      • BATTERY EMPTY

         
      • WATER FLOW FAULT

        Water valve blocked
      • DRIVE MOT. OVERL.

         
      • DRIVE MOT. BLOCK.

        Driving motor blocked
    • Malfunctions with information shown on the display
      • The device cannot be started

      • The water quantity is insufficient

      • The suction performance is too low

      • The cleaning results are unsatisfactory

      • The suction turbine runs at an increased speed

      • The brushes do not rotate

      • The device vibrates during cleaning

      • DOSE version only: The detergent dosing device does not work

      • The waste water drain hose is clogged

      • INSERT KIK 
      • INCORRECT KIK

         
      • NO AUTHORISATION

         
      • RELEASE HANDLE SWITCH!

         
      • BATTERY LEVEL LOW

         
      • BATTERY EMPTY

         
      • WATER FLOW FAULT

        Water valve blocked
      • DRIVE MOT. OVERL.

         
      • DRIVE MOT. BLOCK.

        Driving motor blocked
  • Technical data
    • D 51
    • D 60
    • R 55
    • O 51
  • Warranty
  • Declaration of Conformity

      B 50 W 

      59698640 (08/24)

      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.

      Function

      This scouring and vacuum machine is used for wet cleaning of level floors.

      The device can be adjusted to suit the respective cleaning task by adjusting the water quantity, detergent volume and travel speed.

      The device can be adapted to the respective cleaning task by selecting a suitable cleaning program.

      The working width and the capacity of the fresh and waste water tanks (see chapter "Technical data") enable effective cleaning with a long working time.

      The device is self-propelled.

      The batteries can be charged using the built-in charger. The charger can be operated with a voltage of 100-240 V.

      Note

      The device can be equipped with various accessories to suit the respective cleaning task. Request a copy of our catalogue or visit our Internet website at www.kaercher.com.

      Intended use

      This device is suitable for commercial and industrial use, e.g. in hotels, schools, hospitals, factories, shops, offices, and rental companies. Use the device only in accordance with the information in these operating instructions.

      • The device may only be used for cleaning smooth surfaces that are insensitive to water and polishing.

      • The device is not suitable for cleaning frozen floors (e.g. in cold stores).

      • The device is designed for cleaning indoor floors or covered areas.

      • The device is suitable for use in the temperature range 5-40 °C.

      • The device must be stored in a frost-free location.

      • The device is not suitable for use in potentially explosive environments.

      • No flammable gases, undiluted acids or solvents may be taken up with the device. These include petrol, paint thinner or heating oil, which can form explosive mixtures in the suction air turbulence. Do not use acetone, undiluted acids or solvents, as these corrode the materials used on the device.

      • Reactive metal dusts (e.g. aluminium, magnesium, zinc) in conjunction with highly alkaline or acidic detergents form explosive gases.

      • The device is not intended for cleaning public traffic routes.

      • Take the permissible surface load of the floor into account (see chapter Technical data).

      • The device may only be fitted with original accessories and spare parts.

      • When using chargers or batteries, only the components approved in the operating instructions may be used. A different combination must be approved by the responsible charger supplier and/or battery supplier.

      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.

      Notes on the content materials (REACH)

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

      For guidance regarding safe disposal of batteries, refer to your local council or waste governing body. The battery must be removed from the appliance before it is scrapped. The battery must be disposed of safely.

      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

      Check the contents for completeness when unpacking. If any accessories are missing or in the event of any shipping damage, please notify your dealer.

      Safety instructions

      Before using the device for the first time, read and observe these operating instructions and the accompanying brochure: Safety instructions for brush cleaning devices, No. 5.956-251.0.

      WARNING

      The device can tip over

      Risk of injury

      Do not operate the device on sloping surfaces.

      WARNING

      Risk of accident due to incorrect operation

      People can be injured.

      Operators must be properly trained on how to use this machine.

      The device may only be operated when the hood and all covers are closed.

      Safety devices

      CAUTION

      Risk of injury due to missing or modified safety devices!

      Safety devices are provided for your own protection.

      Do not bypass, remove or render ineffective any safety devices.

      Emergency off

      Note

      Remove the Intelligent Key for an immediate shutdown (emergency off).

      Driving lever

      The travel drive and the brush drive switch off when the driving lever is released.

      Symbols on the device

      DANGER

      Charging process

      Electric shock

      Do not remove the pole protection caps from the battery poles.Ensure correct installation

      ATTENTION

      Risk of damage

      Water damages the suction turbine

      Make sure that no water enters an opening marked in this way.

      Notes on the battery (rechargeable battery) and charger

      The Li-Ion version has built-in lithium-ion batteries. These are subject to special criteria. Removal and installation as well as testing of defective batteries may only be carried out by Kärcher customer service or a qualified specialist.

      For storage and transport instructions, please contact your Kärcher Customer Service.

      DANGER

      Modifications and alterations to the device are not permitted.

      You must not open the battery, there is a danger of a short circuit. Irritating vapours or corrosive liquids can also escape.

      Do not expose the battery to strong sunlight, heat or fire. There is a danger of explosion.

      Do not operate the charger in an explosion-hazard environment.

      Do not use a dirty or wet charger.

      Ensure sufficient ventilation during the charging process.

      Danger of explosion. Keep naked flames away from the battery or the battery charging room, and do not generate sparks or smoke in the vicinity of a battery of a battery charging room.

      Danger of explosion. Do not place any tools or objects on the battery, i.e. on the end poles and cell connectors.

      WARNING

      Check the device and the mains cable for damage before each use. Do not use damaged devices and have damaged parts repaired by qualified personnel only.

      Keep children away from batteries and charger.

      Do not charge damaged batteries. Have damaged batteries replaced by Kärcher customer service.

      Do not throw a defective battery in the household rubbish. Inform Kärcher Customer Service.

      Avoid contact with fluid leaking from defective batteries. In case of accidental contact, rinse the liquid with water. In case of contact with the eyes, consult a doctor as well.

      CAUTION

      Be sure to observe these operating instructions. Adhere to the recommendations of the legislature regarding the handling of batteries.

      The mains voltage must match the voltage indicated on the type plate of the device.

      Use the charger for charging approved battery packs only.

      Operate the battery only with this device. It is forbidden and dangerous to use it for other purposes.

      Warning symbols

      Observe the following warnings when handling the batteries:

      Observe notes in the instructions for the battery, on the battery and in these operating instructions.
      Wear eye protection.
      Keep acids and batteries away from children.
      Risk of explosion
      Fire, sparks, open flames and smoking are prohibited.
      Risk of acid burns
      First aid.
      Warning
      Disposal
      Do not throw batteries in the bin.

      Device description

      Overview of the device


      1. Detergent canister (DOSE variant only)
      2. Detergent suction hose (DOSE variant only)
      3. Fresh water tank filling hole with cap and integrated measuring cup
      4. Turbine screen
      5. Hose holder
      6. Fresh water filling hose
      7. Tank ventilation flap
      8. Waste water tank flushing system water connection
      9. Float
      10. Coarse dirt filter
      11. Homebase retaining rail
      12. Battery
      13. Mop holder
      14. R cleaning head
      15. Water distribution strip
      16. Water dosage regulating knob (Good variant only)
      17. Storage area for "Homebase Box" cleaning set
      18. Waste water tank cap
      19. Holder for smartphone
      20. Control panel
      21. Waste water tank
      22. *Fresh water filling system
      23. Filling level indicator and fresh water drain hose
      24. Recessed grip for pivoting up the waste water tank
      25. Brush replacement button (R cleaning head)
      26. Coarse dirt container (R cleaning head)
      27. Fresh water tank
      28. Type plate
      29. Suction bar clamping lever
      30. Suction bar
      31. Suction bar lowering lever
      32. Pedal for raising/lowering the cleaning head
      33. Storage compartment
      34. Suction hose
      35. Fresh water tank cap with filter
      36. Cable hook for mains cable
      37. Waste water drain hose with dosing unit
      38. Push handle
      39. Driving lever
      40. Roller brush (R cleaning head)
      41. Brush replacement pedal (D cleaning head)
      42. Disc brush (D cleaning head)
      43. D 51 cleaning head
      44. Brush tilt rotary knob (D 51 cleaning head)
      45. USB port
      46. Storage for suction bar
      47. D 60 cleaning head
      48. Brush head attachment
      49. O 51 cleaning head
      50. Pad drive board and pad
      51. Handle

      * optional, ** Not in scope of delivery

      Colour coding

      Device components intended for operation or maintenance by the user are highlighted in yellow.

      Control panel


      1. Program switch
      2. Driving lever
      3. * Water dosage button
      4. Display
      5. Storage space for smartphone
      6. Holder for smartphone
      7. Speed button
      8. * Detergent dosing button
      9. "+" button
      10. "-" button
      11. Intelligent KeyWhite - OperatorRed - Service technician

      * Option

      Program switch


      1. 0The device is switched off.
      2. ECO MODEWet clean the floor and vacuum up the waste water with reduced use of resources (reduced brush speed, suction power, detergent and water dosage).
      3. NORMAL MODEWet clean the floor and vacuum up the waste water.
      4. INTENSIVE MODEWet clean the floor (with increased detergent and water dosage) and vacuum up the waste water.

      Suction bar holder

      The suction bar can be dismantled and hooked onto the edge of the device for driving through narrow spaces or for storage,.


      1. Storage for suction bar (edge of device)
      2. Suction bar

      Symbols on the device

      Mains cable for charger
      Lashing point
      * Mop holder
      * Fill with fresh water
      Fresh water tank filling level 25%
      Fresh water tank filling level 50%
      Fresh water tank filling level 100%
      Brush replacement pedal (BD)
      Brush replacement button (BR)
      Adjust brush tilt (D 51 cleaning head only)
      Drain for waste water
      Drain for fresh water
      Remove the coarse dirt container
      Raise/lower the cleaning head
      Drive forwards
      Drive in reverse

      Intelligent Key

      The Intelligent Key is used to switch on the device and for enabling certain device functions.

      • Yellow: Operator

        The device can be used. All settings for the cleaning programs enabled for this key via the smartphone app may be changed.

      • Grey: Foreman

        The device can be used. All settings for the cleaning programs available for the device may be changed.

      Installation

      Unloading the device

      1. CAUTION

        Risk of damage when driving the device

        The device must not be driven with the brush head raised, as this may damage or destroy the cleaning unit.

        Fold down the brush head before unloading or driving.

        Unscrew the screws on the transport locks.



        1. Transport lock
      2. Remove the transport locks.

      3. Push the device forwards from the pallet.

      Installing the suction bar

      1. Pivot both clamping levers upwards.


        1. Suction hose
        2. Suction bar suspension
        3. Suction bar
        4. Clamping lever
      2. Insert the suction bar in the suction bar mount.

      3. Pivot both clamping levers downwards.

      Installing the brushes

      1. The installation of the brushes is described in the chapter "Maintenance work".

      Batteries

      Replacement battery typ; Inventus (25.6 v 80Ah lithium).

      ATTENTION

      Ensure that correct polarity of battery cables is observed when connecting/ disconnecting battery (+/- as marked on the battery terminals).

      ATTENTION

      When disconnecting battery, ensure appliance is turned off and disconnected from mains power supply.

      ATTENTION

      Remove battery cables one at a time, ensuring the cable terminals do not touch one another.

      Recommended batteries

      ATTENTION

      Risk of damage

      Batteries may only be replaced with batteries of the same technology.Lead batteries must not be replaced by Li-Ion batteriesLi-ion batteries must not be replaced by lead batteries.

      Lead batteries:

      Description
      Order no.
      Set 76 Ah - maintenance-free, 24 V
      2.815-099.0
      Set 105 Ah - maintenance-free, 24 V
      2.815-100.0
      Set 115Ah - maintenance-free, 24 V
      2.815-091.0
      Set 80 Ah - maintenance-free, 24 V
      2.815-090.0

      The device requires 2 batteries.

      Li-ion batteries:

      Description
      Order no.
      80 Ah, 25.6 V
      6.654-454.0

      The device requires 1 battery.

      Maximum battery dimensions

      Length
      350
      Width
      355
      Height
      290

      Installing and connecting batteries

      Note

      In the case of the device variant with Li-Ion battery, the battery is already installed and connected.

        DANGER

        Danger of fire and explosion!

        Do not place tools or similar items on the battery. Risk of short-circuit and explosion.Smoking and naked flames must be strictly avoided.Rooms where batteries are charged must have good ventilation as highly explosive gas is emitted during charging.

        WARNING

        Risk of injury due to the device tipping over!

        The device may tip over when removing and installing batteries.

        Ensure that the device is positioned stably when removing and installing the batteries.

        ATTENTION

        Risk of damage to the control electronics!

        The control electronics can be destroyed by reversing the polarity of the battery connections.

        Take care to ensure the correct polarity when connecting the batteries.

        WARNING

        Danger to life from fire or explosion if batteries are deeply discharged!

        Incorrect charging of deeply discharged batteries can cause a fire.

        Do not start the device if the battery is deeply discharged.Make sure that the battery is charged before starting the system.
      1. Push the device approx. 2 m forwards so that the steering rollers point to the rear.

      2. Hold the waste water tank by the recessed grip and pivot it sideways and upwards.

      3. Fit the batteries in the pan.

      4. Connect the batteries:

        1. Fit the spacers.


          1. Spacers 340x40x10 (9.763-222.0)
          2. Connection cable
          3. Battery
          4. 80 Ah: Spacer 295x94x10 (5.642-034.0)115 Ah: Spacer 295x94x23 (5.642-033.0)
          5. Connection cable to the battery (-)
          6. Connection cable to the battery (+)
        2. Connect both batteries with the connection cable.

        3. Clamp the connection cables to the (+) and (‑) battery terminals that are still free.

      5. Pivot the waste water tank downwards.

      Activating the Li-Ion battery

      Li-Ion batteries are delivered in transport mode and must be activated before initial startup of the device.

      1. Charge the battery (see "Initial startup/Charging the battery"), this will end the transport mode.

      Removing the battery

      WARNING

      Risk of injury due to the device tipping over!

      The device may tip over when removing and installing batteries.

      Ensure that the device is positioned stably when removing and installing the batteries.

      WARNING

      Device tipping over

      Risk of injury, risk of damage

      Only remove the batteries when a cleaning head is attached to the device.
      1. Set the program selection switch to "0".

      2. Remove the Intelligent Key.

      3. Empty the waste water tank.

      4. Push the device approx. 2 m forwards so that the steering rollers point to the rear.

      5. Hold the waste water tank by the recessed grip and pivot it sideways and upwards.

      6. Disconnect the cable from the negative terminal of the battery.

      7. Disconnect the remaining cables from the battery.

      8. Remove the spacers.

      9. Remove the battery.

      10. Dispose of the used batteries in accordance with statutory provisions.

      Initial startup

      Setting the charging characteristic

      Before the initial startup, after a service reset or when changing to a different battery type, it is essential to set the charging characteristic.

      DANGER

      Danger due to the device inadvertently starting up

      Risk of injury

      Disconnect the spark plug connector or disconnect the battery before performing any work on the device.

      ATTENTION

      Risk of damage to the battery

      The service life and charging capacity of the battery can be affected by an incorrect charging characteristic.

      Make sure that the battery characteristic curve that matches the battery is selected in the machine.The currently selected battery characteristic curve can be seen on the display or via the app in the "Device status" area during charging.

      Note

      The charging characteristic can only be adjusted by Kärcher Service.

      Battery characteristics are available for the following batteries:

      • EXIDE GF12105V

      • HOPPECKE TB115

      • EXIDE GF12076V

      • EXIDE FF12080W

      • TROJAN 27TMX

      • HOPPECKE TB80

      • ZENITH L120185

      Note

      To enable the use of other batteries as well, a custom battery characteristic curve can be created by the Kärcher service department.

      Charging the battery

      DANGER

      Risk of injury from charger!

      Electric shock due to improper use of the charger!

      Adhere to the mains voltage and fuse values specified on the device type plate.Only use the charger in dry rooms with sufficient ventilation.

      The built-in charger is electronically controlled and suitable for all recommended batteries, it ends the charging process automatically.

      Note

      By using a fast charger, the charging time can be reduced to max. 2.5 hours (only for the lithium-ion version).

      Note

      The corresponding charging characteristic must be set for each type of battery installed.

      The installed battery is shown in the display when charging.

      The average charging time is a maximum of 14 hours.

      The device cannot be used during the charging process.

      Note

      The device has deep discharge protection, i.e. the brush motor and turbine are switched off automatically in operation when the permitted minimum capacity level is reached.

      1. Drive the device directly to the charger and do not drive on slopes.

      2. Plug the mains plug on the power cable into the mains socket.

      3. Charge until the display shows full charge.

      Low-maintenance batteries (wet batteries)

        DANGER

        Danger of burns due to acid leakage!

        Only fill the battery with water when it is discharged.

        When handling battery acid, use safety goggles and immediately rinse out any acid splashes on the skin or clothing with water.

        ATTENTION

        Risk of damage to the batteries!

        Using water with additives will void the battery’s warranty.

        Top up the batteries using only distilled or desalinated water (EN 50272-T3).Do not use any foreign additives or touch-up agents.
      1. Add distilled water one hour before the charging process comes to an end. Observe the correct acid level according to the battery label.

        All cells must produce gas at the end of the charging process.

      Switching on the device

      1. Insert the Intelligent Key into the control panel.

      2. Set the program switch to a cleaning program.

        The display shows the following, one after the other:

        • Kärcher Logo

        • Time until next service in hours

        • Battery status and operating hours

        • Software version

        • Operating display


          1. Battery charge state
          2. Set water dosage (only for devices with an electric water valve)
          3. Set speed
          4. Set detergent dosage (only for DOSE device variant)

        The device is ready for operation.

      Pairing with a smartphone

      The "Machine Connect" smartphone app connected to the device can be used to perform advanced device functions:

      • Set the type of cleaning head

      • Set the maximum transport speed

      • Switch the USB port off/on

      • Set the after-running time of the brush(es)

      • Set the after-running time of the suction

      • Switch the speed-dependent water dosing on/off

      • Manage the permissions of the yellow Intelligent Key

      • Restore the factory settings

      Note

      The possible functions depend on the device version.

      1. Scan the QR code on the device with your smartphone.


        1. QR code
        2. Bluetooth® symbol
      2. Install the "Machine Connect" app on the smartphone and start it.

      3. Insert the Intelligent Key into the control panel.

      4. Press the "+" and "-" keys on the control panel of the device simultaneously for 3 seconds.

        Note

        The Bluetooth® symbol on the control panel flashes during the pairing process.

      5. Follow the pairing instructions of the app on the smartphone.

      6. The functions of the app are explained on the smartphone.

        Note

        The Bluetooth symbol lights up continuously when the smartphone is paired with the device.

      Note

      The mobile phone can be connected to the USB port of the device to charge the battery.

      Maintenance requests

      After a certain operating time has elapsed, the display prompts to perform various maintenance activities:

      Call
      Interval (hours)
      CLEANING VACUUM FILTER
      10
      CLEANING SUCTION BAR
      20
      CLEANING FILTER WATER
      50
      CHECK BRUSH WEAR
      100
      CHECK SUCTION LIP
      100
      1. Carry out the indicated maintenance activity.

      2. Press any button on the control panel to confirm.

        The prompt is reset and displayed again after the interval has elapsed.

      Operation

      DANGER

      Risks during operation

      Loss of stability

      Risk of injury

      Risk of injury

      Release the driving lever in the case of danger.Operate the pedal to raise/lower the cleaning head with one foot only. Keep the other foot firmly and securely on the floor.

      Filling with operating materials

      Filling with fresh water

      1. Open the fresh water tank cap.

      2. Fill fresh water (max. 50 °C) to the lower edge of the filling nozzle.

        Note: The fresh water hose can be clamped with the hose holder during filling.

      3. Close the fresh water tank lock.

      Filling with fresh water via the filling hose

      1. Pull the filling hose out of the device.

      2. Connect the end of the filling hose to a water tap.

      3. Remove the fresh water tank cap.

      4. Open the water supply (water temperature maximum 50 °C).

      5. Observe the filling level of the fresh water tank through the filling hole.

      6. Close the water inlet when the filling level reaches the lower edge of the filling nozzle.

      7. Fit the fresh water tank lock.

      8. Disconnect the filling hose from the water tap.

      9. Push the filling hose into the device.

      Filling with fresh water via the filling system

      1. Connect the water hose to the connection nozzle of the filling system (maximum water temperature 50 °C).

      2. Open the water inlet.

      3. Monitor the device, the automatic filling system interrupts the water supply when the fresh water tank is full.

      4. Close the water inlet.

      5. Remove the water hose.

      Notes on detergents

      WARNING

      Risk of damage to the device!

      If unsuitable detergents are used, the device may get damaged.

      Use only recommended detergents. The operator carries all increased risks relating to operational safety and increased risk of accidents if using other detergents.Use only detergents free of solvents, salt and hydrofluoric acid.Adhere to the safety instructions stated on the detergent packaging.

      Note

      Do not use heavily foaming detergent.

       Recommended detergents

      Application
      Detergent
      Maintenance cleaning of all water-resistant floors
      APPROX 50 C
      RM 756
      Maintenance cleaning with care components
      RM 746
      RM 780
      Maintenance cleaning and basic cleaning of industrial floors
      RM 69
      Maintenance cleaning of glossy coverings
      RM 755
      Maintenance cleaning and basic cleaning of fine stone tiles
      RM 753
      Maintenance cleaning and basic cleaning of acid-resistant coverings
      RM 751
      Cleaning and disinfection
      RM 732
      Basic cleaning of all alkali-resistant floor coverings
      RM 752
      Basic cleaning and de-coating of alkali-sensitive floors
      RM 754

      Addition of detergent with a dosing device

      Only with DOSE variant:

      Detergent is added to the fresh water on the way to the cleaning head by a dosing device.

      1. Fill the detergent into the detergent canister.

        Note

        A maximum of 3% detergent can be added with the dosing device. For higher dosage, the detergent must be added to the fresh water tank.

        ATTENTION

        Danger of clogging

        When adding detergent to the fresh water tank, the detergent can dry out and disrupt the function of the dosing device.

        Rinse the device with clear water after adding detergent to the fresh water tank: Select a cleaning program with water application, set the water quantity to the highest value, set the detergent dosage to 0.

      Adding detergent without a dosing device

      1. Fill the detergent into the fresh water tank.

        Note

        The cap of the filling hole has a scale inside and can be used to measure the detergent volume.

      Setting the detergent dosage

      With the DOSE device variant, the detergent is added to the fresh water on its way to the cleaning head.

      The detergent dosage can be set separately for each cleaning programme.

      1. Insert the Intelligent Key into the control panel.

      2. Select the cleaning programme to be set with the programme switch.

      3. Press the Detergent dosing button.

      4. Set the desired detergent dosage with the "+" and "-" buttons.

      5. To accept the setting, either wait 3 seconds or press one of the other buttons.

      Adjusting the water quantity

      1. Adjust the water quantity according to the degree of soiling of the floor covering.

        Note

        Perform initial cleaning tests with a low water volume. Increase the water volume step by step until achieving the desired cleaning result.

        Note

        The cleaning head continues operating without a liquid supply if the fresh water tank is empty.

      Manual water valve

      A device with a manual water valve is equipped with a regulating knob for water dosage to the right of the control panel.

      1. Turn the water dosage regulating knob to the desired value.

        Note

        The brush irrigation is only active when the cleaning head is lowered and the driving lever is actuated.

      Electric water valve

      A device with an electric water valve is equipped with a water dosage button on the control panel.

      The water dosage can be set separately for each cleaning programme.

      1. Insert the Intelligent Key into the control panel.

      2. Select the cleaning programme to be set with the programme switch.

      3. Press the water dosage button.

      4. Set the desired water dosage with the "+" and "-" buttons.

      5. To accept the setting, either wait 3 seconds or press one of the other buttons.

        Note

        The brush irrigation is only active when the cleaning head is lowered and the driving lever is actuated.

      Adjusting the inclination of the suction bar

      The inclination must be adjusted so that the suction lips of the suction bar make even contact with the floor over the entire length of the suction bar.

      1. Park the device on a surface without a slope.

      2. Select the "Suction" program.

      3. Drive the device a small distance forwards.

        The suction bar is lowered.

      4. Read the spirit level.


        1. Screw
        2. Nut
        3. Spirit level
      5. Release the M 12 nut while holding the M 10 hexagon head screw with an open-end wrench.

      6. Adjust the screw so that the spirit level indicator is between the two lines.

      7. Tighten the M 12 nut while holding the M 10 hexagon head screw with an open-end wrench.

      8. To check the new setting, move the device forward a short distance in suction mode with the suction bar lowered and observe the spirit level. Repeat the adjustment process if necessary.

      Adjusting the height

      The height adjustment affects the bending of the suction lips on contact with the floor.

      Note

      Standard setting: 3 washers above, 3 washers below the suction bar.

      Uneven floor: 5 washers above, 1 washer below the suction bar.

      Very smooth floor: 1 washer above, 5 washers below the suction bar.

      1. Unscrew the nuts.


        1. Nut
        2. Washer
        3. Spacer roller with holder
      2. Place the desired number of washers between the suction bar and the spacer roller.

      3. Fit the remaining unused washers above the spacer roller.

      4. Screw on the nut and tighten.

      5. Repeat the entire procedure at the second spacer roller.

        Note

        Set both spacer rollers to the same height.

      Adjusting the side pull of the brush

      (Only with D 51 cleaning head)

      If the device pulls to one side during cleaning, this can be remedied by adjusting the brush tilt.

      Note

      After changing the brush/pad, it may be necessary to readjust the side pull.

      1. Adjust the brush tilt rotary knob until the device moves straight ahead.


        1. Brush inclination rotary knob

      Switching on the device

      1. Turn the key-operated switch to "1".

        The display shows the following one after the other:

        • Period of time until the next after-sales Customer Service

        • Software version, control panel

        • Charging state of the battery and number of operating hours

      Driving

      Note

      The device is constructed so that the cleaning head protrudes to the right. This makes it possible to work clearly and close to the edge.

      1. Insert the Intelligent Key.

      2. Pivot the suction bar lowering lever upwards.

      3. Press the raise /lower cleaning head pedal down and latch it towards the right.

      4. Set the program switch to the desired program.

      5. CAUTION

        Risk of damage when driving the device

        The device must not be driven with the brush head raised, as this may damage or destroy the cleaning unit.

        Fold down the brush head before unloading or driving.

        Drive the device.

        1. Push the driving lever forward.

          The device moves forward.

        2. Push the driving lever backwards.

          The device moves in reverse.

        Note

        The device moves only when the driving lever is moved by 5°.

      6. Release the driving lever.

        The device stops.

      Cleaning

      ATTENTION

      Risk of damage

      The floor covering can be damaged if the device is operated on the same spot for a long time.

      Do not operate the device continuously on the same point.
      1. Insert the Intelligent Key.

      2. Set the program switch to the desired cleaning program.

      3. Pivot the lever downwards to lower the suction bar.

      4. Press the cleaning head raise/lower pedal down, move it to the left and let it go up.

      5. Push the driving lever forward and drive over the area to be cleaned.

      Note

      When the waste water tank is full, the float switch closes the suction opening and the suction turbine runs at a higher speed. In this case, switch off the vacuuming function and drive to the location for emptying the waste water tank.

      Finishing operation

      Finishing cleaning

      1. Turn the water quantity regulating knob to "OFF" (not for the DOSE version).

      2. Release the driving lever.

      3. Press the raise /lower cleaning head pedal down and latch it towards the right.

      4. Continue moving a short distance.

        The residual water is vacuumed up.

      5. Pivot the suction bar lowering lever upwards.

      Draining the waste water

      WARNING

      Environmental pollution!

      Environmental pollution due to improper disposal in waste water.

      Observe the local waste water treatment regulations.
      1. Remove the drain hose from the support and lower it over a suitable collecting device.


      2. Squeeze or kink the drain hose at the intended point.

      3. Open the cover of the drain hose.

      4. Drain the waste water. Regulate the water volume by pressing or kinking.

      5. Rinse the waste water tank with clear water.

      Waste water tank flushing system

      1. Remove the waste water drain hose from the holder and lower it over a suitable collecting device.

      2. Open the dosing unit cover at the drain hose.

      3. Open the waste water tank cover.

      4. Pull the flexible cap off the flushing system.

      5. Connect the water hose to the flushing system.


        1. Lock
        2. Tank ventilation flap
        3. Flushing system water connection
      6. Close the waste water tank cover.

      7. Open the water supply and flush the waste water tank for about 30 seconds.

        If necessary, repeat the flushing process 2 - 3 times.

      8. Close the water supply and disconnect the hose from the device.

      9. Reattach the flexible cap to the water inlet of the flushing system.

      10. Close the cover of the waste water tank. Press the tank ventilation flap in so that a gap remains open and the waste water tank can dry.

      11. Push the waste water drain hose into the holder and closed the cover of the dosing device.

      Draining fresh water at the cap

      1. Open the fresh water tank cap.

      2. Drain the fresh water.

      3. Clean the filter.

      4. Fit the fresh water tank cap.

      Draining fresh water via the filling level indicator

      1. Remove the filling level indicator hose from the holder and pivot it down.

      2. Reattach the hose.

      Emptying the coarse dirt container

      (R cleaning head only)

      1. Lift the coarse dirt container and pull it out.


        1. Coarse dirt container
      2. Empty the coarse dirt container and clean it if necessary.

      3. Reinstall the coarse dirt container.

      Parking the device

      1. Turn the program switch to position "0".

      2. Remove the Intelligent Key.

      3. Press the raise/lower cleaning head lever down and latch it towards the right.

      4. Pivot the suction bar lowering lever upwards.

      5. Secure the device against rolling away.

      6. Close the cover of the waste water tank. Press the tank ventilation flap in so that it engages in the groove of the fresh water tank so that the waste water tank can dry.

      7. Charge the battery if necessary.

      Transport

      DANGER

      Driving on slopes

      Risk of injury

      Observe the maximum permissible gradient when operating the device on slopes for loading and unloading purposes (see chapter "Technical data").Drive slowly.

      CAUTION

      Failure to observe the weight

      Risk of injury and damage

      Be aware of the weight of the device during transport.Only load the device with the dirt and fresh water tanks empty.Only load the device with the assistance of another person or by using the drive.
      1. Press the raise/lower cleaning head pedal down and latch it towards the right.

      2. Remove the brushes to avoid damage.

      3. Remove the suction bar from the device.

      4. When transporting in vehicles, secure the device against slipping and tipping over using the transport eyelets according to the respectively applicable guidelines.


      Storage

      CAUTION

      Risk of injury or damage due to non-observance of the weight

      Be aware of the weight of the device during storage.

      ATTENTION

      Frost

      Destruction of the device through freezing water

      Drain all water from the device.Store the device in a frost-free location.
      • This device may only be stored indoors.

      • Fully charge the batteries before storing them for a long period.

      • Fully charge the batteries at least every month during storage.

      Care and maintenance

      DANGER

      Inadvertently starting up device

      Risk of injury

      Turn the program switch to the "0" position.Remove the Intelligent Key prior to all work on the device.Pull out the charger mains plug.
      • Drain and dispose of the waste water and fresh water.

      Safety inspection/maintenance contract

      You can agree on regular safety inspections or close a maintenance contract with your dealer. Please seek advice on this.

      Maintenance intervals

      Each time after use

      ATTENTION

      Risk of damage!

      Risk of damage to the device due to improper cleaning.

      Do not spray the device with water and do not use aggressive detergents.
      • Drain the waste water.

      • Clean the waste water tank with the waste water tank flushing system.

      • Remove the coarse dirt filter from the waste water tank and clean it.

      • Check the turbine screen, remove it if necessary and clean it.

      • Clean the exterior of the device using a damp cloth, wetted with a mild washing lye.

      • Only with R cleaning head: Remove the coarse dirt container and empty it.

      • Only with R cleaning head: Clean the water distribution strip.

      • Check the suction lips, check for wear and replace if necessary.

      • Clean the squeegee blades on the cleaning head, check for wear and replace if necessary.

      • Clean the brushes, check for wear and replace if necessary.

      • Close the cover of the waste water tank. Press the tank ventilation flap in so that a gap remains open and the waste water tank can dry.

      • Charge the battery.

        Lead-acid battery:

        • If the charging state of the battery is below 50%, charge the battery fully and without interruption.

        • If the charging state of the battery is above 50%, only recharge the battery if the entire operating duration will be required when next used.

        Li-Ion battery:

        • Recharge as necessary.

      Monthly

      • Empty and flush the fresh water tank.

      • Clean the fresh water filter.

      • Clean the float.

      • For a temporarily shut-down device with lead-acid battery: Perform equalization charging of the battery.

      • Check battery poles for oxidation, brush off if necessary. Make sure the connection cables are firmly in place.

      • Clean the seals between the waste water tank and the cover, check for leaks and replace if necessary.

      • Only with R cleaning head: Clean the brush tunnel.

      • Only with R cleaning head: Pull the water distribution strip off the cleaning head and clean the water channel.

      • Check the acid density of the cells if the lead batteries are not maintenance-free.

      • For longer downtime periods, shut the device down with fully charged batteries. Fully charge the battery at least once a month.

      Annually

      • Have the prescribed inspection performed by Customer Service.

      Maintenance work

      Cleaning the coarse dirt filter

      1. Open the waste water tank cover.


        1. Coarse dirt filter
      2. Pull the coarse dirt filter upwards and off.

      3. Rinse off the coarse dirt filter under running water.

      4. Reinsert the coarse dirt filter into the waste water tank.

      Cleaning the water distribution strip

      1. Push the locking lever to the left and simultaneously pull the water distribution strip away from the cleaning head.


        1. Water distribution strip
        2. Locking lever
      2. Remove the water distribution strip from the cleaning head.

      3. Clean the water distribution strip.

      4. Fit the left side of the strip into the cleaning head.

      5. Pivot the water distribution strip towards the cleaning head and latch it into place on the right-hand side.

      Cleaning the fresh water filter

      1. Drain the fresh water.

      2. Unscrew the fresh water tank cap.


        1. Fresh water filter
        2. Fresh water tank lock
      3. Pull out the fresh water filter and rinse with clear water.

      4. Insert the fresh water filter.

      5. Fit the fresh water tank lock.

      Turn over or replace the worn suction lips

      The suction lips must be turned over or replaced when worn out.

      The suction lips can be turned 3 times until all 4 edges are worn.

      1. Remove the suction bar.

      2. Unscrew the star handles.


        1. Star grip
        2. Strap
        3. Inner part of the suction bar
        4. Tension lock
      3. Pull out the inner part of the suction bar.

      4. Open the tension lock.

      5. Remove the strap.

      6. Release the suction lips from the inner part.


        1. Squeegee blade
        2. Support lip
        3. Inner part of the suction bar
        4. Strap
      7. Press the turned or new suction lips onto the knobs of the inner part of the suction bar.

      8. Attach the strap.

      9. Push the inner part of the suction bar into the upper part.

      10. Screw in and tighten the star handles.

      Replacing the disc brush

      Note

      Replace the disc brushes when the bristle length has reached 10 mm.

      1. Press the raise/lower cleaning head lever down and latch it towards the right.

      2. Push the brush replacement pedal down.

      3. Pull the disc brush sideways and out from underneath the cleaning head.

      4. Hold the new disc brush under the cleaning head, then press upwards and latch it into position.

      Replacing the roller brushes

      Note

      Replace the roller brushes when the bristle length has reached 10 mm.

      1. Press the raise/lower cleaning head lever down and latch it towards the right.

      2. Press the Brush replacement button.


        1. Brush replacement button
        2. Bearing cover
        3. Roller brush
      3. Pivot the bearing cover to the right.

      4. Pull out the roller brushes.

      5. Position the new front roller brush in the bearings.

      6. Position the new rear roller brush in the bearings.

      7. Pivot back the bearing cover and latch it into place.

      Replacing the pad


      1. Push rod locking pin
      2. Handle
      1. Pull out the push rod locking pin on the side and turn it (2x).

      2. Hold the orbital head by the handle and swivel it upwards as far as it will go.

        Note

        The orbital head engages firmly in this position thanks to the locking pin.

      3. Slowly remove the pad from the pad drive board.


        1. Centre lock
        2. Pad drive board
      4. Align the new pad with the centre lock.

      5. Press the pad firmly onto the pad drive board.


        1. Locking pin suspension
      6. Hold the orbital head by the handle, pull out the locking pin suspension, swivel the orbital head back into the working position and allow the locking pin suspension to slide back into the original position while twisted.

      7. Lock the push rod locking pin into the sliding bushing by positioning the head towards the welding assembly and turning the locking pin handles (2x).

        Note

        Ensure that the locking pin is fully engaged.

      8. Press the handle down to the stop.

      Replacing the pad drive board with pad


      1. Push rod locking pin
      2. Handle
      1. Pull out the push rod locking pin on the side and turn it (2x).

      2. Hold the orbital head by the handle and swivel it upwards as far as it will go.

        Note

        The orbital head engages firmly in this position thanks to the locking pin.

      3. Slowly remove the pad from the pad drive board.


        1. Pad drive board
        2. Centre lock
      4. Release the screw from the pad drive board with aluminium adapter (6x).

      5. Release the screw on the centre lock (3x).

      6. Replace the pad drive board with brush.

      7. Screw on the pad drive board with aluminium adapter (6x).


        1. Locking pin suspension
      8. Hold the orbital head by the handle, pull out the locking pin suspension, swivel the orbital head back into the working position and allow the locking pin suspension to slide back into the original position while twisted.

      9. Lock the push rod locking pin into the sliding bushing by positioning the head towards the welding assembly and turning the locking pin handles (2x).

        Note

        Ensure that the locking pin is fully engaged.

      10. Press the handle down to the stop.

      Troubleshooting guide

      DANGER

      Inadvertently starting up device

      Risk of injury

      Set the program switch to "0" prior to all work on the device.Remove the Intelligent Key prior to all work on the device.Pull out the charger mains plug.
      • Drain and dispose of the waste water and fresh water.

      • Contact Customer Service in the case of malfunctions that cannot be corrected using this table.

      Malfunctions without information shown on the display

      • The device cannot be started 

      • The water quantity is insufficient 

      • The suction performance is too low 

      • The cleaning results are unsatisfactory 

      • The suction turbine runs at an increased speed 

      • The brushes do not rotate 

      • The device vibrates during cleaning 

      • DOSE version only: The detergent dosing device does not work 

      • The waste water drain hose is clogged 

      • INSERT KIK 

      • INCORRECT KIK 

      • NO AUTHORISATION 

      • RELEASE HANDLE SWITCH! 

      • BATTERY LEVEL LOW 

      • BATTERY EMPTY 

      • WATER FLOW FAULTWater valve blocked 

      • DRIVE MOT. OVERL. 

      • DRIVE MOT. BLOCK.Driving motor blocked 

      The device cannot be started

      Remedy:

      1. Insert the Intelligent Key.

      2. Set the program switch to the desired program.

      3. Operate the driving lever.

      4. Check the batteries and charge if necessary.

      5. Check that the battery terminals are correctly connected.

      The water quantity is insufficient

      Remedy:

      1. Check the fresh water filling level and fill the tank if necessary.

      2. Increase the water quantity.

        1. DOSE version: Set the water quantity with the water quantity button on the control panel.

        2. Other versions: Set the water quantity using the water quantity regulating knob.

      3. Clean the fresh water filter.

      4. R cleaning head: Clean the water distribution strip.

      5. Check the hoses for clogging and clean if necessary.

      The suction performance is too low

      Remedy:

      1. Set the programme switch to NORMAL or INTENSIVE MODE.

      2. Set the suction power in the app to HIGH.

      3. Shut down the device and drain the waste water.

      4. Check that the cap on the waste water drain hose is closed.

      5. Clean the seals between the waste water tank and the cover, check for leaks and replace if necessary.

      6. Check the turbine screen for soiling and clean if necessary.

      7. Clean the suction lips at the suction bar, turn over or replace if necessary.

      8. Check the suction hose for clogging and clean if necessary.

      9. Check the suction hose for leaks and replace if necessary.

      10. Check the adjustment of the suction bar.

      11. Hold the waste water tank by the recessed grip and pivot it sideways and upwards.

        1. Check the seal on the suction turbine.

        2. Check the seal on the suction duct.


        1. Suction duct seal
        2. Suction turbine seal

      The cleaning results are unsatisfactory

      Remedy:

      1. Reduce the driving speed.

      2. Select a more intensive cleaning programme.

      3. Check the brushes for wear and replace if necessary.

      4. Check the brush for soiling and clean if necessary.

      5. Check the suitability of the brush type and detergent used.

      6. Check the water supply.

      7. Increase the water quantity.

      8. Use the two-step method: In the first pass clean without suction, in the second pass clean with suction.

      The suction turbine runs at an increased speed

      Remedy:

      1. Drain the waste water.

      2. Clean the float.

      3. Check the fluff filter and clean if necessary.

      4. Check the suction hose for clogging and clean if necessary.

      5. Check the suction bar for clogging and remove any clogging if necessary

      The brushes do not rotate

      Remedy:

      1. Check if the brushes are blocked by a foreign body and remove the foreign body if necessary.

      2. Set the program switch to the desired program.

      3. Lower the cleaning head.

      The device vibrates during cleaning

      Remedy:

      1. Check that the brush(es) are correctly installed.

      2. Use a softer brush.

      3. Renew the brush.

      DOSE version only: The detergent dosing device does not work

      Remedy:

      1. Check the detergent level in the detergent canister.

      2. Increase the detergent dosage.

      3. Check the connection of the detergent hose to the detergent canister.

      4. Clean the filter in the detergent canister.

      5. Check the check valve in the hose to the cleaning head for blockage.

      6. Check the hoses for leaks.

      7. Check the functionality of the detergent pump.

      The waste water drain hose is clogged

      Remedy:

      1. Open the dosing unit cover at the drain hose.

      2. Pull the suction hose off the suction bar and close it by hand.

      3. Set the program switch to a programme with suction.

        The blockage is sucked out of the drain hose into the waste water tank.

      INSERT KIK 

      Cause:

      No intelligent key inserted.

      Remedy:

      • Insert an intelligent key.

      INCORRECT KIK

       

      Cause:

      The inserted Intelligent Key does not authorise the execution of the selected function.

      Remedy:

      • Use a different Intelligent Key.

      • Possibly have the Intelligent Key used activated (depending on the case).

      NO AUTHORISATION

       

      Cause:

      The inserted Intelligent Key does not authorise the execution of the selected function.

      Remedy:

      • Use a different Intelligent Key.

      • Possibly have the Intelligent Key used activated (depending on the case).

      RELEASE HANDLE SWITCH!

       

      Cause:

      When the device is switched on, a driving lever is operated.

      Remedy:

      • Release both driving levers.

      BATTERY LEVEL LOW

       

      Cause:

      The battery is almost empty. The cleaning functions of the device are automatically switched off.

      Remedy:

      • Drive the device to the charging station and charge the battery.

      BATTERY EMPTY

       

      Cause:

      The battery is empty. The cleaning functions and the travel drive are switched off.

      Remedy:

      • Switch off the device, wait briefly and switch it on again. The drive to the charging station. If necessary, push it to the charging station when it is switched off. Charge the battery.

      WATER FLOW FAULT

      Water valve blocked

      Cause:

      The electric water valve is defective.

      Remedy:

      • Contact customer service.

      DRIVE MOT. OVERL.

       

      Cause:

      The current consumption of the driving motor is too high.

      Remedy:

      • Check the travel drive train for foreign objects.

      • Find a path with a lower gradient.

      • Switch off the device, wait briefly, switch the device on again.

      DRIVE MOT. BLOCK.

      Driving motor blocked

      Cause:

      The driving motor is blocked.

      Remedy:

      • Check the travel drive train for foreign objects.

      • Jack up each drive wheel individually and check whether it can be turned.

      Malfunctions with information shown on the display

      • The device cannot be started 

      • The water quantity is insufficient 

      • The suction performance is too low 

      • The cleaning results are unsatisfactory 

      • The suction turbine runs at an increased speed 

      • The brushes do not rotate 

      • The device vibrates during cleaning 

      • DOSE version only: The detergent dosing device does not work 

      • The waste water drain hose is clogged 

      • INSERT KIK 

      • INCORRECT KIK 

      • NO AUTHORISATION 

      • RELEASE HANDLE SWITCH! 

      • BATTERY LEVEL LOW 

      • BATTERY EMPTY 

      • WATER FLOW FAULTWater valve blocked 

      • DRIVE MOT. OVERL. 

      • DRIVE MOT. BLOCK.Driving motor blocked 

      The device cannot be started

      Remedy:

      1. Insert the Intelligent Key.

      2. Set the program switch to the desired program.

      3. Operate the driving lever.

      4. Check the batteries and charge if necessary.

      5. Check that the battery terminals are correctly connected.

      The water quantity is insufficient

      Remedy:

      1. Check the fresh water filling level and fill the tank if necessary.

      2. Increase the water quantity.

        1. DOSE version: Set the water quantity with the water quantity button on the control panel.

        2. Other versions: Set the water quantity using the water quantity regulating knob.

      3. Clean the fresh water filter.

      4. R cleaning head: Clean the water distribution strip.

      5. Check the hoses for clogging and clean if necessary.

      The suction performance is too low

      Remedy:

      1. Set the programme switch to NORMAL or INTENSIVE MODE.

      2. Set the suction power in the app to HIGH.

      3. Shut down the device and drain the waste water.

      4. Check that the cap on the waste water drain hose is closed.

      5. Clean the seals between the waste water tank and the cover, check for leaks and replace if necessary.

      6. Check the turbine screen for soiling and clean if necessary.

      7. Clean the suction lips at the suction bar, turn over or replace if necessary.

      8. Check the suction hose for clogging and clean if necessary.

      9. Check the suction hose for leaks and replace if necessary.

      10. Check the adjustment of the suction bar.

      11. Hold the waste water tank by the recessed grip and pivot it sideways and upwards.

        1. Check the seal on the suction turbine.

        2. Check the seal on the suction duct.


        1. Suction duct seal
        2. Suction turbine seal

      The cleaning results are unsatisfactory

      Remedy:

      1. Reduce the driving speed.

      2. Select a more intensive cleaning programme.

      3. Check the brushes for wear and replace if necessary.

      4. Check the brush for soiling and clean if necessary.

      5. Check the suitability of the brush type and detergent used.

      6. Check the water supply.

      7. Increase the water quantity.

      8. Use the two-step method: In the first pass clean without suction, in the second pass clean with suction.

      The suction turbine runs at an increased speed

      Remedy:

      1. Drain the waste water.

      2. Clean the float.

      3. Check the fluff filter and clean if necessary.

      4. Check the suction hose for clogging and clean if necessary.

      5. Check the suction bar for clogging and remove any clogging if necessary

      The brushes do not rotate

      Remedy:

      1. Check if the brushes are blocked by a foreign body and remove the foreign body if necessary.

      2. Set the program switch to the desired program.

      3. Lower the cleaning head.

      The device vibrates during cleaning

      Remedy:

      1. Check that the brush(es) are correctly installed.

      2. Use a softer brush.

      3. Renew the brush.

      DOSE version only: The detergent dosing device does not work

      Remedy:

      1. Check the detergent level in the detergent canister.

      2. Increase the detergent dosage.

      3. Check the connection of the detergent hose to the detergent canister.

      4. Clean the filter in the detergent canister.

      5. Check the check valve in the hose to the cleaning head for blockage.

      6. Check the hoses for leaks.

      7. Check the functionality of the detergent pump.

      The waste water drain hose is clogged

      Remedy:

      1. Open the dosing unit cover at the drain hose.

      2. Pull the suction hose off the suction bar and close it by hand.

      3. Set the program switch to a programme with suction.

        The blockage is sucked out of the drain hose into the waste water tank.

      INSERT KIK 

      Cause:

      No intelligent key inserted.

      Remedy:

      • Insert an intelligent key.

      INCORRECT KIK

       

      Cause:

      The inserted Intelligent Key does not authorise the execution of the selected function.

      Remedy:

      • Use a different Intelligent Key.

      • Possibly have the Intelligent Key used activated (depending on the case).

      NO AUTHORISATION

       

      Cause:

      The inserted Intelligent Key does not authorise the execution of the selected function.

      Remedy:

      • Use a different Intelligent Key.

      • Possibly have the Intelligent Key used activated (depending on the case).

      RELEASE HANDLE SWITCH!

       

      Cause:

      When the device is switched on, a driving lever is operated.

      Remedy:

      • Release both driving levers.

      BATTERY LEVEL LOW

       

      Cause:

      The battery is almost empty. The cleaning functions of the device are automatically switched off.

      Remedy:

      • Drive the device to the charging station and charge the battery.

      BATTERY EMPTY

       

      Cause:

      The battery is empty. The cleaning functions and the travel drive are switched off.

      Remedy:

      • Switch off the device, wait briefly and switch it on again. The drive to the charging station. If necessary, push it to the charging station when it is switched off. Charge the battery.

      WATER FLOW FAULT

      Water valve blocked

      Cause:

      The electric water valve is defective.

      Remedy:

      • Contact customer service.

      DRIVE MOT. OVERL.

       

      Cause:

      The current consumption of the driving motor is too high.

      Remedy:

      • Check the travel drive train for foreign objects.

      • Find a path with a lower gradient.

      • Switch off the device, wait briefly, switch the device on again.

      DRIVE MOT. BLOCK.

      Driving motor blocked

      Cause:

      The driving motor is blocked.

      Remedy:

      • Check the travel drive train for foreign objects.

      • Jack up each drive wheel individually and check whether it can be turned.

      Technical data

      • D 51 

      • D 60 

      • R 55 

      • O 51 

      D 51

      General
      Travel speed (max.)
      6 km/h
      Theoretical surface performance
      3060 m2/h
      Practical surface performance
      1380 m2/h
      Waste water tank capacity
      50 l
      Coarse dirt container capacity
      - l
      Volume of detergent tank ("Dose" option)
      3 l
      Detergent dosing
      0...3 %
      Water dosage
      0...2,5±0,2 l/min
      Dimensions
      Length
      1375 mm
      Width without suction bar
      542 mm
      Height
      1082 mm
      Working width
      510 mm
      Packaging dimensions lxwxh
      1505x770x1271 mm
      Tyres
      Front wheel, width
      50 mm
      Front wheel, diameter
      200 mm
      Rear wheel, width
      28 mm
      Rear wheel, diameter
      100 mm
      Weight
      Approved total weight
      245 kg
      Net weight (transport weight)
      195 kg
      Brush contact force, max.
      290 (29) N (kg)
      Brush contact pressure, max.
      3,2 (32) N / m2 (g / cm2)
      Device performance data
      Nominal voltage
      24 V
      Nominal voltage, Li-Ion
      25,6 V
      Battery capacity
      76 / 80 / 105 / 115 Ah (5 h)
      Battery capacity, Li-Ion
      80 Ah (5 h)
      Mean power input
      1300 W
      Driving motor power
      130 W
      Suction turbine power
      250 W
      Brush drive power
      800 W
      Degree of protection
      IPX3
      Vacuuming
      Suction performance, air quantity
      21 l/s
      Vacuum (max.)
      9,5 (95) kPa (mbar)
      Cleaning brushes
      Brush diameter
      510 mm
      Brush length
      - mm
      Brush speed
      140 1/min
      Internal charger
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 5 A
      Charging time
      max 14 h
      Internal quick charger (lithium-ion version only)
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 10 A
      Charging time
      max 2,5 h
      Ambient conditions
      Permissible temperature range
      5...40 °C
      Water temperature max.
      50 °C
      Filling system water pressure
      1(10) MPa (bar)
      Waste water tank flushing system water pressure
      1 (10) MPa (bar)
      Relative humidity
      20...90 %
      Incline
      Max. working area slope
      2 %
      Determined values in acc. with EN 60335-2-72
      Hand-arm vibration value
      0,2 m/s2
      Uncertainty K
      0,2 m/s2
      Sound level LpA normal operation
      65 dB(A)
      Uncertainty KpA
      2 dB(A)
      Sound power level LWA + Uncertainty KWA normal operation
      81 dB(A)

      D 60

      General
      Travel speed (max.)
      6 km/h
      Theoretical surface performance
      3600 m2/h
      Practical surface performance
      1620 m2/h
      Waste water tank capacity
      50 l
      Coarse dirt container capacity
      - l
      Volume of detergent tank ("Dose" option)
      3 l
      Detergent dosing
      0...3 %
      Water dosage
      0...2,6±0,2 l/min
      Dimensions
      Length
      1290 mm
      Width without suction bar
      542 mm
      Height
      1082 mm
      Working width
      600 mm
      Packaging dimensions lxwxh
      1505x770x1271 mm
      Tyres
      Front wheel, width
      50 mm
      Front wheel, diameter
      200 mm
      Rear wheel, width
      28 mm
      Rear wheel, diameter
      100 mm
      Weight
      Approved total weight
      241 kg
      Net weight (transport weight)
      191 kg
      Brush contact force, max.
      250 (25) N (kg)
      Brush contact pressure, max.
      2,5 (25) N / m2 (g / cm2)
      Device performance data
      Nominal voltage
      24 V
      Nominal voltage, Li-Ion
      25,6 V
      Battery capacity
      76 / 80 / 105 / 115 Ah (5 h)
      Battery capacity, Li-Ion
      80 Ah (5 h)
      Mean power input
      1300 W
      Driving motor power
      130 W
      Suction turbine power
      250 W
      Brush drive power
      800 W
      Degree of protection
      IPX3
      Vacuuming
      Suction performance, air quantity
      21 l/s
      Vacuum (max.)
      9,5 (95) kPa (mbar)
      Cleaning brushes
      Brush diameter
      600 mm
      Brush length
      - mm
      Brush speed
      150 1/min
      Internal charger
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 5 A
      Charging time
      max 14 h
      Internal quick charger (lithium-ion version only)
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 10 A
      Charging time
      max 2,5 h
      Ambient conditions
      Permissible temperature range
      5...40 °C
      Water temperature max.
      50 °C
      Filling system water pressure
      1(10) MPa (bar)
      Waste water tank flushing system water pressure
      1 (10) MPa (bar)
      Relative humidity
      20...90 %
      Incline
      Max. working area slope
      2 %
      Determined values in acc. with EN 60335-2-72
      Hand-arm vibration value
      0,2 m/s2
      Uncertainty K
      0,2 dB(A)
      Sound level LpA normal operation
      65 dB(A)
      Uncertainty KpA
      2 dB(A)
      Sound power level LWA + Uncertainty KWA normal operation
      81 dB(A)

      R 55

      General
      Travel speed (max.)
      6 km/h
      Theoretical surface performance
      3060 m2/h
      Practical surface performance
      1490 m2/h
      Waste water tank capacity
      50 l
      Coarse dirt container capacity
      3,5 l
      Volume of detergent tank ("Dose" option)
      3 l
      Detergent dosing
      0...3 %
      Water dosage
      0...2,6±0,2 l/min
      Dimensions
      Length
      1284 mm
      Width without suction bar
      542 mm
      Height
      1082 mm
      Working width
      550 mm
      Packaging dimensions lxwxh
      1505x770x1271 mm
      Tyres
      Front wheel, width
      50 mm
      Front wheel, diameter
      200 mm
      Rear wheel, width
      28 mm
      Rear wheel, diameter
      100 mm
      Weight
      Approved total weight
      235 kg
      Net weight (transport weight)
      185 kg
      Brush contact force, max.
      155 (15,5) N (kg)
      Brush contact pressure, max.
      6,3 (63) N / m2 (g / cm2)
      Device performance data
      Nominal voltage
      24 V
      Nominal voltage, Li-Ion
      25,6 V
      Battery capacity
      76 / 80 / 105 / 115 Ah (5 h)
      Battery capacity, Li-Ion
      80 Ah (5 h)
      Mean power input
      1350 W
      Driving motor power
      130 W
      Suction turbine power
      250 W
      Brush drive power
      980 W
      Degree of protection
      IPX3
      Vacuuming
      Suction performance, air quantity
      21 l/s
      Vacuum (max.)
      9,5 (95) kPa (mbar)
      Cleaning brushes
      Brush diameter
      96 mm
      Brush length
      550 mm
      Brush speed
      965 1/min
      Internal charger
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 5 A
      Charging time
      max 14 h
      Internal quick charger (lithium-ion version only)
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 10 A
      Charging time
      max 2,5 h
      Ambient conditions
      Permissible temperature range
      5...40 °C
      Water temperature max.
      50 °C
      Filling system water pressure
      1(10) MPa (bar)
      Waste water tank flushing system water pressure
      1 (10) MPa (bar)
      Relative humidity
      20...90 %
      Incline
      Max. working area slope
      2 %
      Determined values in acc. with EN 60335-2-72
      Hand-arm vibration value
      0,2 m/s2
      Uncertainty K
      0,2 m/s2
      Sound level LpA normal operation
      65 dB(A)
      Uncertainty KpA
      2 dB(A)
      Sound power level LWA + Uncertainty KWA normal operation
      81 dB(A)

      O 51

      General
      Travel speed (max.)
      6 km/h
      Theoretical surface performance
      3060 m2/h
      Practical surface performance
      1380 m2/h
      Waste water tank capacity
      50 l
      Coarse dirt container capacity
      - l
      Volume of detergent tank ("Dose" option)
      3 l
      Detergent dosing
      0...3 %
      Water dosage
      0...2,5±0,2 l/min
      Dimensions
      Length
      1380 mm
      Width without suction bar
      542 mm
      Height
      1082 mm
      Working width
      510 mm
      Packaging dimensions lxwxh
      1505x770x1271 mm
      Tyres
      Front wheel, width
      50 mm
      Front wheel, diameter
      200 mm
      Rear wheel, width
      28 mm
      Rear wheel, diameter
      100 mm
      Weight
      Approved total weight
      257 kg
      Net weight (transport weight)
      207 kg
      Brush contact force, max.
      340 (34) N (kg)
      Brush contact pressure, max.
      3,2 (32) N / m2 (g / cm2)
      Device performance data
      Nominal voltage
      24 V
      Nominal voltage, Li-Ion
      25,6 V
      Battery capacity
      76 / 80 / 105 / 115 Ah (5 h)
      Battery capacity, Li-Ion
      80 Ah (5 h)
      Mean power input
      1300 W
      Driving motor power
      130 W
      Suction turbine power
      250 W
      Brush drive power
      800 W
      Degree of protection
      IPX3
      Vacuuming
      Suction performance, air quantity
      21 l/s
      Vacuum (max.)
      9,5 (95) kPa (mbar)
      Cleaning brushes
      Brush diameter
      510 mm
      Brush length
      - mm
      Brush speed
      140 1/min
      Internal charger
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 5 A
      Charging time
      max 14 h
      Internal quick charger (lithium-ion version only)
      Nominal voltage
      100...240 V
      Frequency
      50-60 Hz
      Current consumption
      max 10 A
      Charging time
      max 2,5 h
      Ambient conditions
      Permissible temperature range
      5...40 °C
      Water temperature max.
      50 °C
      Filling system water pressure
      1(10) MPa (bar)
      Waste water tank flushing system water pressure
      1 (10) MPa (bar)
      Relative humidity
      20...90 %
      Incline
      Max. working area slope
      2 %
      Determined values in acc. with EN 60335-2-72
      Hand-arm vibration value
      1,5 m/s2
      Uncertainty K
      0,5 m/s2
      Sound level LpA normal operation
      65 dB(A)
      Uncertainty KpA
      2 dB(A)
      Sound power level LWA + Uncertainty KWA normal operation
      81 dB(A)

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

      Further information can be found at: www.kaercher.com/dealersearch

      Further warranty information (if available) can be found in the service area of your local Kärcher website under "Downloads".

      Declaration of Conformity

      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: Floor cleaner

      Type: 1.533-xxx

      Currently applicable EU Directives

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

      2014/30/EU

      2014/53/EU (TCU)

      Harmonised standards used

      EN 60335-1

      EN 60335-2-29

      EN 60335-2-72

      EN 62311: 2008

      EN 55012: 2007 + A1: 2009

      EN 61000-6-3: 2007 + A1:2011

      EN IEC 61000-6-2: 2005

      TCU

      EN 301 511 V12.5.1

      EN 300 440 V2.1.1

      EN 300 328 V2.2.2

      EN 300 330 V2.1.1

      National standards used

      -

      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, 2021/08/01

      Declaration of Conformity (UK)

      We hereby declare that the product described below complies with the relevant provisions of the following UK Regulations, both in its basic design and construction as well as in the version put into circulation by us. This declaration shall cease to be valid if the product is modified without our prior approval.

      Product: Floor cleaner

      Type: 1.533-xxx

      Currently applicable UK Regulations

      S.I. 2008/1597 (as amended)

      S.I. 2016/1091 (as amended)

      S.I. 2017/1206 (as amended) (TCU)

      Designated standards used

      EN 60335-1

      EN 60335-2-29

      EN 60335-2-72

      EN 62311: 2008

      EN 55012: 2007 + A1: 2009

      EN 61000-6-3: 2007 + A1:2011

      EN IEC 61000-6-2: 2005

      TCU

      EN 301 511 V12.5.1

      EN 300 440 V2.1.1

      EN 300 328 V2.2.2

      EN 300 330 V2.1.1

      National standards used

      -

      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, 2021/08/01

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