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    Home » Karcher bds 43 150 Classic Single Disc Machine User Guide
    Karcher

    Karcher bds 43 150 Classic Single Disc Machine User Guide

    By Gabriel SmithNovember 20, 2025Updated:November 21, 2025No Comments7 Mins Read
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    Karcher BDS 43 150 Classic Single Disc Machine

    Karcher-BDS-43-150-Classic-Single-Disc-Machine-product

    Safety instructions

    Before using the appliance for the first time, read and observe these operating instructions and the accompanying brochure: Safety information for Disc single-pulley machine machines No. 5.956-659.0.

    • Pointer to immediate danger, which leads to severe injuries or death.
    • Pointer to a possibly dangerous situation,  which can lead to severe injuries or death.
    • Pointer to a possibly dangerous situation, which can lead to minor injuries.
    • Pointer to a possibly dangerous situation, which can lead to property damage.

    Safety Devices: Safety devices serve to protect the user and must not be rendered in operational or their functions bypassed.

    Lock: Prevents the device from switching on unintentionally. To switch on the device, press the unlocking button, then the ON/OFF switch.

    Push rod: Before the operation, the push rod must be installed as shown, and the appliance must be connected to power. Illustration on the inside of the front cover

    Device Elements

    The device illustration shows the BDS 43/ 150 C Classic device. The BDS 43/Duo C device differs slightly from this.Karcher-BDS-43-150-Classic-Single-Disc-Machine-fig-2

    1. Actuator, disc brush/pad driver plate
    2. Brush/pad driver plate
    3. Dosing lever for detergent solution (option)
    4. Switch ON / OFF
    5. Cable hook
    6. Unlocking button
    7. Handle
    8. Lever for level adjustment
    9. Fuse for brush drive
    10.  Socket for accessories
    11.  Detergent tank (option)
    12.  Motor casing
    13.  Brush speed switch (BDS 43/Duo C only)

    Start Up

    • The power cord must be checked regularly for damage, such as cracks or ageing.
    • If damage is found, the cable must be replaced before further use.
    • Check the appliance for damage, and have the damage repaired by customer service.
    Power Connection
    • For connection values, see the technical data and type plate.
    • The electrical connections must be done by an electrician according to IEC 60364-1.
    • Do not drive over the mains cable. DANGER Risk of injury!
    • Never wrap the mains cable around your body or your neck.
    • Do not let the mains cable come in contact with the rotating brushes or rotating pads.

    Attach the Brush/Pad

    • Disconnect the mains plug from the socket.
    • Pull the lever for level adjustment.
    • Swivel the handle to the front into a vertical position.
    • Release the lever for level adjustment.
    • Tilt the appliance rearward.

    Karcher-BDS-43-150-Classic-Single-Disc-Machine-fig-3

    • Place the disc brush/driver plate onto the actuator and turn in an anti-clockwise direction.

    Operation

    Risk of injury! The operation of the appliance requires practice.

    • Ensure that there are no obstacles in the area to be cleaned.
    • Check the floor consistency for its suitability.
    • The handling becomes more difficult with uneven or rough surfaces.

    Adjusting the Position

    Do not adjust the handle unless the motor is at a standstill.

    • Pull the lever for level adjustment.
    • Swivel the handle into a comfortable position.
    • Release the lever for level adjustment.

    Select Brush Speed

    Only operate the switch for the brush speed when the motor is at a standstill.

    • Set the switch of the brush speed to the desired speed.
    • LO: 150 revolutions per minute
    • HI: 300 revolutions per minute
    Turning on the Appliance

    Do not operate the appliance on the spot.

    • Insert the mains plug into a socket.
    • Adjust the handle to the desired working position.
    • Hold the handle with both hands.
    • Depress the unlocking button and keep it depressed.
    • Use the ON/OFF switch. To do this, swivel the handle down at least 3 steps from the vertical position.

    Karcher-BDS-43-150-Classic-Single-Disc-Machine-fig-4

    • Release the unlocking button.
    • Release the ON/OFF switch to interrupt operation.
    Control the Direction
    • Left: Press the handle downward.
    • Right: Raise the handle

    Shutting Down

    • Disconnect the mains plug from the socket.
    • Pull the lever for level adjustment.
    • Move the handle into a vertical position.
    • Release the lever for level adjustment.
    • Remove the detergent tank (option) and
      dispose of unused detergent solution.
    • Wind the mains cable around the cable hooks.
    • Rinse the detergent tank (option) with clear water.
    • Place the appliance into the parking position.
    • Remove the driver plate/disc brush.
    •  Clean the casing with a damp cloth.
    Transport

    Mind the weight of the appliance during transport.

    • Pull the lever for level adjustment.
    • Move the handle into a vertical position.
    • Release the lever for level adjustment.
    • Tilt the appliance backwards into the transport position and drive it to its destination location.
    • When transporting in vehicles, secure the appliance according to the guidelines from slipping or tipping over.

    Care and Maintenance

    Pull the plug from the mains before carrying out any tasks on the appliance.

    • Rinse contaminated disc brushes with water.
    • Wash contaminated pads at a max. Temperature of 60 °C.
    • Clean the casing with a damp cloth.
    • Check the mains connection cable for damage.
    Cleaning
    • Apply the detergent solution to the floor or use the dosing lever of the detergent tank (option).
    • Move the appliance over the surface to be cleaned.
    • Repethe at process for severe contamination.
    • Afterwards, pick up the wastewater with a wet vacuum or a cloth.

    Storage

    Consider the weight of the appliance when storing it.

    • Place the appliance into the parking position.
    • Store the appliance in a dry, frost-protected room.

    Technical specifications

    Karcher-BDS-43-150-Classic-Single-Disc-Machine-fig-7

    Troubleshooting

    Pull the plug from the mains before carrying out any tasks on the appliance. In case of faults that cannot be remedied using the table below, please contact the customer service.

    Karcher-BDS-43-150-Classic-Single-Disc-Machine-fig-5

    Accessories and Spare Parts

    Only use original accessories and spare parts; they ensure the safe and trouble-free operation of the device. For information about accessories and spare parts, please

    Karcher-BDS-43-150-Classic-Single-Disc-Machine-fig-6

    Warranty

    The warranty terms published by the relevant sales company are applicable in each country. We will repair potential failures of your appliance within the warranty period free of charge, provided that such failure is caused by faulty material or defects in manufacturing. In the event of a warranty claim, please contact your dealer or the nearest authorised Customer Service centre. Please submit the proof of purchase.

    Environmental Protection

    Please do not throw the packaging material into household waste; please send it for recycling. Correct disposal of this product. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please recycle this product responsibly to enable sustainable reuse of material resources.

    To dispose of your used device, please take it to the return and collection system or contact the dealer from whom you purchased the product. The dealer will accept the product in order to recycle it in an environmentally friendly way.

    Customer Support

    • Website: www.kaercher.com.
    • Ph: 800-537-4129

    FAQs

    Q: What is the Karcher BDS 43/150 Classic?

    Hard floor surfaces may be cleaned, polished, and maintained with this professional-grade single-disc floor cleaner.

    Q: What type of floors can it clean?

    Hard surfaces including linoleum, stone, tiles, and sealed wood floors, can all be used with this equipment. Unless a particular pad is advised, do not use it on carpeted floors.

    Q: What is the disc size?

    For cleaning and polishing tasks, a single disc measuring 430 mm (43 cm) is used.

    Q: How powerful is the motor?

    The machine’s 1,500 W (1500W) motor offers dependable performance for tough floor cleaning jobs.

    Q: What are the speed settings?

    The BDS 43/150 Classic may be used for both polishing and scrubbing because it runs at a single speed of about 150 RPM.

    Q: Does it have a water tank?

    No, there isn’t an integrated water tank with this model. It is necessary to apply water or a cleaning solution by hand or using an external supply.

    Q: Can it be used for polishing floors?

    Yes, to get high-gloss finishes on hard floors, use a polishing pad and the proper polish or wax.

    Q: Is it safe to use on wet floors?

    Yes, you can use it to clean slightly moist floors, but don’t use too much water to avoid electrical risks or slipping.

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    Gabriel Smith

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