KARCHER BD 75-120 R Classic Bp Scrubber Dryer Instruction Manual

KARCHER BD 75-120 R Classic Bp Scrubber Dryer

Product Information

Specifications

Model: BD 75/120 R Classic Bp

Language: English
Product Code: 97639220 (09/23)

Intended Use: Commercial and industrial cleaning
Indoor Use Only

Product Usage Instructions

Facility

Follow the installation instructions provided in the user manual. Ensure all components are securely connected before use.

Initial Startup

Prior to use, check that all settings are correct and the device is properly connected to a power source. Fill the water tank as instructed.

Operation

Turn on the device using the designated power button. Adjust settings as needed for the cleaning task at hand. Move the device smoothly over the surface to be cleaned.

Finishing Operation

After cleaning, turn off the device and empty any remaining water from the tank. Clean the device’s components as per the maintenance instructions.

Care and Maintenance

Regularly clean the device after each use. Check for any blockages or damage. Store the device in a dry and safe place when not in use.

FAQs

Q: Can this device be used outdoors?

A: No, the device is designed for indoor use only.

Q: What should I do if the device stops working?

A: Refer to the troubleshooting guide in the user manual to identify and resolve common issues. If problems persist, contact customer support for assistance.

Register your product
www.kaercher.com/welcome

General notes

Read these original operating instruc-tions and the enclosed safety instruc-tions 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 or polishing of level floors.

The device can be adjusted to suit the respective clean-ing task by setting the water volume and detergent vol-ume appropriately. The detergent dosage is adjusted by adding detergent to the tank or via a dosing device
(“Dose” option).
Brush irrigation is either speed-dependent or constant. 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 has a drive motor.
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.kaerch-er.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 in-structions.

The device may only be used for cleaning smooth surfaces that are insensitive to water and polishing.
The device is designed for indoor use.

The operational temperature range is between + 5 °C and +40 °C.
The device is not suitable for cleaning frozen floors (e.g. in cold stores).

The device is suitable for a maximum water height of 1 cm. Do not drive into an area if there is a danger of exceeding the maximum water height.
When using chargers or batteries, only the compo-nents approved in the operating instructions may be used. A different combination must be confirmed by the responsible charger and/or battery supplier.
The device is not intended for cleaning public traffic routes.
The device must not be used on pressure-sensitive floors. Take into account the permissible load per unit area of the floor. The load per unit area caused by the device is specified in the technical data. The device is not suitable for use in potentially ex-plosive environments.
The device is approved for operation on surfaces with a maximum slope (see chapter “Technical Da-ta”).

Environmental protection

The packing materials can be recycled. Please dispose of packaging in accordance with the en-vironmental regulations.
Electrical and electronic devices contain valua-ble, 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 envi-ronment. 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

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 ob-serve these operating instructions and the accompany-ing brochure: Safety instructions for brush cleaning devices, No. 5.956-251.0.
The device is approved for operation on surfaces with a specified limited slope (see chapter “Technical Data”).

WARNING
The device can tip over
Risk of injury
Only operate the device on surfaces that do not exceed the permitted slope (see chapter “Technical Data”).

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
Missing or modified safety devices!
Safety devices are provided for your own protection. Do not bypass, remove or render ineffective any safety devices.

Safety switch

For immediate shutdown of all functions: Set the safety switch to “0”.

The device brakes hard when the safety switch is switched off.
The safety switch acts directly on all device functions

Seat switch

If the operator leaves the seat during work or while driv-ing, the seat switch switches off the engine after a short delay.

Symbols on the device

Description of the unit

Overview of the device

Fresh water tank cap with fresh water filter
Coarse dirt filter
Waste water tank cap

Control panel
Squeegee blade adjustment wheel (D cleaning head only)
Brush replacement pedal

Steering wheel
Squeegee blade
*Battery

Type plate
Seat adjustment lever
Storage area for “Homebase Box” cleaning set

*Warning light
Seat
Waste water tank latch

Fresh water tank filling hole
Hose holder
Daytime running light

Accelerator pedal
Float
Fluff filter

Waste water tank drain hose with dosing unit 23 Waste water tank
* Mop holder
Suction hose

Suction bar wing screw
Waste water tank cap
Suction bar

Cleaning head
Fresh water filling level indicator
Fresh water tank
optional

Colour coding

Control elements for the cleaning process are yellow.
Control elements for maintenance and servicing are light grey.

Control panel

Horn

Travel direction switch
Program switch
Intelligent Key

Display
Info button
Safety switch

Program switch

OFF
Device is switched off.

TRANSPORT MODE
Drive to the operating location.
ECO MODE
Clean the floor wet (with a reduced amount of water and a reduced brush speed) and vacuum up wastewater (with reduced suction power).
NORMAL MODE
Clean the floor wet and vacuum up wastewater.

HEAVY MODE
Clean the floor wet (with increased brush contact pressure) and vacuum up wastewater.
SCRUB MODE
Precleaning without vacuuming
Clean the floor wet and let the detergent act.
SUCTION MODE
Vacuum up the dirty waste.

POLISH MODE
Polish the floor at a high brush speed without applying liquid.

Symbols on the device

Installation

Unloading

Remove the packaging film.
Remove the strap.
1. Strap
2. Board
3. Block
4. Beam
Unscrew the block, squared timber and boards. The components to be unscrewed are marked in grey in the figure.

Place a ramp in front of the pallet with the unscrewed boards and squared timber and fasten with chipboard screws.
Install the batteries if the device was delivered without batteries (see chapter “Before inital startup/ batteries”).

Drive the device forward and off the pallet (see chapter “Operation / Driving”).

Installing he brushes

The installation of the brushes is described in the chapter “Maintenance work”.

Installing the vacuum bar

Insert the vacuum bar into the vacuum bar suspension.
The profiled sheet is positioned above the suspension.

Tighten the wing nuts.
Fit the suction hose.

Batteries

Installing and connecting batteries

CAUTION
Removing and installing the batteries Unstable machine position
Ensure that the machine is positioned stably when removing and installing the batteries.

ATTENTION
Incorrect connection polarity Destruction of the control electronics
Take care to ensure the correct polarity when connecting the batteries.

ATTENTION
Deep discharge
Risk of damage
Charge the batteries before starting the device.

Drain the waste water.
Unlock the waste water tank and pivot it up.

Disconnect the seat switch and remove the seat.
Place the battery in the device.
Connect the device-side battery connector to the battery-side battery connector.

Reset the seat and connect the seat switch.
Pivot the waste water tank forwards and close it.

Removing the battery

CAUTION
Removing and installing the batteries
Unstable machine position
Ensure that the machine is positioned stably when removing and installing the batteries.

Set the safety switch to “0”.
Drain the waste water.

Unlock the waste water tank and pivot it up.
Pull out the battery plug.
Disconnect the cable from the minus terminal at the battery.

Disconnect the remaining cables from the battery.
Remove the battery.
Dispose of the used batteries in accordance with statutory provisions

Initial startup

Charging the battery

DANGER
Inappropriate use of the charger

Electric shock
Adhere to the mains voltage and fuse values specified on the device type plate.
Only use the charger in dry rooms with sufficient ventilation.
Flammable gases are generated when the battery is charged

Risk of explosion
Only charge the battery in a suitable room. The room must have a minimum volume depending on the battery type and an adequate air exchange rate with a minimum air flow (see “Recommended batteries”).

ATTENTION
Accumulation of dangerous gases under the tank during the charging process

Risk of explosion
Pivot the waste water tank upwards before charging low-maintenance batteries.
The average charging time is approx. 10-15 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
when the permitted minimum capacity level is reached.
Drive the device directly to the charger and do not drive on slopes.

External charger

ATTENTION
Using an unsuitable charger

Risk of damage
Do not connect the charger to the device-side battery connector.
Use only a charger suitable for the type of battery installed.
Read the operating instructions of the charger manufacturer and observe the safety instructions in particular.

Filp the seat forward and place the seat support into the support into the support position.
Pull out the device-side battery connector.
1. Battery plug, device side
2. Battery plug, battery side
Connect the battery-side battery connector to the charger.
Plug the mains plug of the charger into the socket.
Carry out the charging process in accordance with the operating instructions for the charger.
Connect the device-side battery connector to the battery-side battery connector.
Reset the seat.

Low-maintenance batteries (wet batteries)

DANGER
Refilling discharged batteries with water
Danger of acid burns from escaping acid, destruction of clothing
Wear safety goggles, protective clothing and protective gloves when handling the battery acid.
Observe the applicable regulations.
Immediately rinse off any splashed acid from the skin or clothing using copious amounts of water.

ATTENTION
Using water with additives
Defective batteries, loss of warranty eligibility Top up the batteries using only distilled or desalinated water (EN 50272-T3).
Do not use any foreign additives, so-called enhancing agents, because this will invalidate the warranty.

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.
Clean up any spilled water. To do this, proceed as described in the Care and maintenance chapter in the “Cleaning the batteries” section.

Operation

DANGER
Falling objects
Risk of injury
Do not drive the device into areas where there is a possibility of the operating personnel being hit by falling objects.

ATTENTION
Risks during operation
Risk of injury
In the event of danger, set the safety switch to “0”.
Pushing the device
To push the device, the brake must be unlocked.

DANGER
Danger of accident
When the brake is unlocked, the function of the brake is permanently out of operation.
Be sure to remove the coins for unlocking immediately after the sliding process has ended.

Swing the unlocking lever away from the wheel and hold it there.
1. Unlocking lever
Insert a coin between the casing and the lever at
both ends of the lever.
Release the unlocking lever.
Push the device.
Remove both coins immediately after pushing.

Adjusting the seat
Adjusting the position

Operate the seat adjustment lever and move the seat to the desired position.
Release the seat adjustment lever and latch the seat into position.

Switching the device on

Sit in the driver’s seat.
Insert the Intelligent Key.
Set the safety switch to “1”.
Turn the program switch to the desired function.

If one of the displays below appears on the display, take your foot off the accelerator pedal, set the safety switch to “0” and carry out the necessary maintenance work.

Display	Activity
maintenance squeegee blade	Check the suction lips for wear and correct adjustment.
maintenance turbine filter	Clean the fluff filter.
maintenance fresh water filter	Clean the fresh water filter.

Press the Info button.
Reset the counter for the corresponding maintenance (see “Grey Intelligent Key / Reset maintenance counter”).
Note
If the counter is not reset, the maintenance display appears again each time the device is switched on.

Switching on the light

Daytime running light
The daytime running light is in operation when the device is switched on.

Checking the parking brake

DANGER
Defective parking brake
Danger of accident
Before each operation, check the function of the parking brake on level ground.

Switch the device on.
Set the travel direction switch to “Forward”.
Set the program selector switch to “TRANSPORT MODE”.
Press the accelerator pedal lightly.
The brake must audibly unlock. The appliance must roll easily on a plane surface.
Release the accelerator pedal.
The brake must be audibly engage.
If this is not the case, take the device out of operation and call Customer Service.

Driving

DANGER
Lack of braking
Danger of accident
Before using the device, it is essential to check the function
of the parking brake. Never use the device if the
parking brake does not work.

DANGER
Careless driving
Danger of tipping over
Only drive up and up gradients in the direction of travel
and across the direction of travel 10%.
Do not turn up or down gradients.
Drive slowly in corners and on wet ground.
Only drive the device on stable ground.

Note
The travel direction can be changed while driving. This means that very dull spots can be polished by moving back and forth several times.

Assume a seated position.
Insert the Intelligent Key.
Turn the safety switch to “1”.
Set the program selector switch to “TRANSPORT MODE”.
Set the direction of travel using the drive direction button on the control panel.
Specify the travel speed by pressing the accelerator pedal.
Release the accelerator pedal.
The device stops.
The driving motor is switched off in the event of an overload.
A fault message appears on the display. If the controller overheats, the affected power unit is switched off.
Allow the device to cool down for at least 15 minutes.
Set the program switch to “OFF”, wait briefly and set to the desired program.

Filling with fresh water

Open the fresh water tank cap.
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.
Close the fresh water tank lock.

Filling with detergent

Notes on detergents

WARNING
Unsuitable detergents
Health risk, damage to the device
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 chlorine, 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	RM 746 RM 756 RM 780
Maintenance cleaning of polished hard surfaces (e.g. granite)	RM 755 es
Maintenance cleaning, intermediate cleaning and basic cleaning of in- dustrial floors	RM 69 ASF
Maintenance cleaning and basic cleaning of fine stone tiles	RM 753
Maintenance cleaning of tiles in san- itary areas	RM 751
Coating removal on all alkaline-re- sistant floors (e.g. PVC)	RM 752
Coating removal on linoleum floors	RM 754

Filling the detergent into the fresh water tank

Fill the detergent into the fresh water tank.
Note: The lid for the filling hole of the fresh water tank can be used to measure the detergent. It has a measuring scale marked on the inner side.

Adjusting parameters

Set the program switch to the desired cleaning program.
Turn the Info button until the desired parameter is displayed.
Press the Info button.
The adjusted value flashes.
Set the desired value by turning the Info button.
Confirm the changed setting by pressing the Info button or wait until the set value is automatically accepted after 10 seconds.

Yellow Intelligent Key
The yellow Intelligent Key authorizes functions that are required for the cleaning task.
The parameters for the various cleaning programs are preset in the device. Individual parameters can be changed depending on the authorization of the yellow Intelligent Key.
The display texts for parameter setting are largely selfexplanatory.
“FACT” parameters (only available with R cleaning head):

“Fine Clean”: Low brush speed for removing grey film from fine stone.
“Whisper Clean”: Medium brush speed for maintenance cleaning with reduced noise level.
“Power Clean”: High brush speed for polishing, crystallizing and sweeping.

Adjusting the suction bar

Adjusting the inclination
If the suction result is unsatisfactory, the inclination of the vacuum bar can be adjusted.

Lift the tension lever.
1. Rotary handle
2. Tension lever
Adjust the rotary handle to incline the vacuum bar.
Press the tension lever downwards.

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

Push the device a small distance forwards.
Compare the bending of the suction lips with the figure below.
1. Spacer roller with holder
2. Washer
3. Screw
Unscrew the screw.
Insert a sufficient number of washers between the suction bar and spacer roller to create the correct bending of the suction lip.
Fit the remaining unused washers above the spacer roller.
Screw in and tighten the screw.
Repeat the entire procedure at the second spacer roller.
Push the device a small distance forwards.
Check the bending of the suction lips over the entire length.
Repeat the adjustment procedure if necessary.

Adjusting the squeegee blades
The squeegee blades only need to be adjusted on the D cleaning head.

Adjust the squeegee blades by turning the setting wheel so that the squeegee blade touches the ground.
Turn the adjustment wheel an additional 1 rotation down.

Cleaning

Sit on the seat.
Insert the Intelligent Key.
Set the safety switch to “1”.
Set the travel direction switch to forward travel.
Set the program switch to the desired cleaning program.
Determine the speed with the accelerator pedal.
Determine the travel direction with the steering wheel.
Drive over the surface to be cleaned.

Finishing operation

Finishing cleaning

Set the programme switch to Drive.
Continue moving a short distance.
The residual water is vacuumed up.
Turn the key-operated switch to “OFF”.
Remove the Intelligent Key.
Charge the battery if necessary.

Draining the waste water

WARNING
Improper disposal of waste water
Environmental pollution
Observe the local waste water treatment regulations.

Note
When the waste water tank is full, the suction flow is interrupted by a float to prevent the waste water tank from overflowing. In this case, drain the waste water.

Remove the waste water drain hose from the support and open the drain hose cover.
Squeeze the end of the hose and lower it over the disposal facility.
Adjust the strength of the waste water jet by squeezing the end of the hose.
Rinse the waste water tank with clear water.
Close the drain hose cover.
Press the waste water hose into the support on the device.

Empty the coarse dirt container

Lift the coarse dirt container and pull it out.
Empty the coarse dirt container.
Reinstall the coarse dirt container.

Draining fresh water

Open the fresh water tank cap.
Drain the fresh water.
Clean the filter.
Fit the fresh water tank cap.

Shutting down the unit

Turn the key-operated switch to “OFF”.
Remove the Intelligent Key.
Secure the device against rolling away.
Open the waste water tank cover.
1. Waste water tank cap
Charge the battery if necessary.

Grey Intelligent Key

The grey Intelligent Key grants the supervisory staff extended authorizations and setting options.

Insert the Intelligent Key.
Select the desired function by turning the info button.

Transport journey

Set the program selector switch to “TRANSPORT MODE”.
Press the Info button.

The following functions can be executed from the TRANSPORT MODE menu:

Set maximum speed
Show operating hours counter
Clearing the maintenance counter
Show software versions
Adjust the R or D cleaning head
Switch speed-dependent water dosage on / off
Setting after-running times
Setting the language
Key management
Switch attachment kits on / off
Activate factory setting

Maximum speed

The maximum speed can be limited in the “max speed” menu.

Turn the info button until “max speed” is shown on the display.
Press the Info button.
Turn the info button until the desired maximum speed is displayed.
Press the Info button.

Note
The working speed cannot exceed the maximum speed set.

Resetting the maintenance counter
If maintenance work shown in the display has been carried out, the corresponding maintenance counter must then be reset.

Turn the Info button until “maintenance count.” is displayed.
Press the Info button.
The counter readings are displayed.
Turn the info button until the counter to be cleared is highlighted.
Press the Info button.
Select “yes” by turning the Info button.
Press the Info button.
The counter is cleared.

Adjusting the cleaning head

Turn the Info button until “brush head” is displayed in the menu.
Press the Info button.
Turn the info button until the type of the built-in cleaning head is highlighted. “Roll” = R cleaning head “Disc” = D cleaning head
Press the Info button.

After-running time

Turn the info button until the “delay times” menu item appears on the display.
Press the Info button.
Turn the info button until the desired assembly is highlighted.
Press the Info button.
Turn the info button until the desired after-running time is displayed.
Press the Info button.

Setting the language

Turn the info button until the “language” menu item appears on the display.
Press the Info button.
Turn the info button until the desired language is highlighted.
Press the Info button.

Key management
The menu item “key menu” enables authorizations for yellow Intelligent Keys and the language of the display.

Insert the grey Intelligent Key.
Turn the info button until the “key menu” menu item appears on the display.
Press the Info button.
Remove the grey Intelligent Key and insert the yellow Intelligent Key to be personalized.
Select the menu item to be changed by turning the info button.
Press the Info button.
Select the setting of the menu item by turning the info button.
Confirm the setting by pressing the menu item.
Select the next menu item to be changed by turning the info button.
After all settings have been made, call up the “save” menu by turning the info button.
Press the Info button.
The authorizations are saved.

Switch attachment kits on / off

Turn the info button until the desired attachment kit is shown on the display.
Press the Info button.
Turn the info button until the desired function of the attachment kit is displayed.
Press the Info button.

Factory setting
The factory settings for all cleaning parameters are restored.

Turn the info button until the “factory settings” menu item is displayed.
Press the Info button.
Turn the Info button until “yes” is highlighted.
Press the Info button.

Adjusting parameters for cleaning programs
All parameters for cleaning programs are retained until another setting is selected.

Set the program switch to the desired cleaning program.
Press the Info button.
The first adjustable parameter is displayed.
Press the Info button
The adjusted value flashes.
Set the desired value by turning the Info button.
Confirm the changed setting by pressing the Info button or wait until the set value is automatically accepted after 10 seconds.
Select the next parameter by turning the Info button.
After changing all desired parameters, turn the Info button until the “exit” menu item is displayed.
Press the Info button.
The menu is exited.

Transport

DANGER
Driving on slopes
Risk of injury
Observe the maximum permissible gradient when driving
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 transportation.

With the D cleaning head installed, remove the disc brushes from the brush head.
When transporting in vehicles, secure the device against slipping and tipping over according to the applicable guidelines
Storage

CAUTION
Failure to observe the weight
Risk of injury and damage
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, electric shock
Turn the program switch to the “OFF” position.
Remove the Intelligent Key prior to all work on the device.
Pull out the charger mains plug.
Unplug the battery connector.
Drain and dispose of the waste water and fresh water.

Maintenance intervals

Each time after use

ATTENTION
Improper cleaning
Risk of damage.
Do not spray the device with water.
Do not use aggressive cleaning agents.
A detailed description of the individual maintenance work is provided in the chapter “Maintenance Work”.

Drain the waste water.
Rinse the waste water tank with clear water.
Clean the coarse dirt filter.
Only with R cleaning head: Remove the coarse dirt container and empty it.
Clean the exterior of the device using a damp cloth, wetted with a mild washing lye.
Check the suction lips, check for wear and replace if necessary.
Clean the squeegee blades, check for wear and replace if necessary.
Clean the brushes, check for wear and replace if necessary.
Charge the 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.

Weekly
When used regularly, charge the battery fully and without interruption at least once a week.

Monthly
A detailed description of the individual maintenance work is provided in the chapter “Maintenance Work”.

If the device is temporarily shut down: 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.
Drain the fresh water tank and flush out deposits.
Clean the fresh water filter.
Check the acid density of the cells if the batteries are not maintenance-free.
Only with R cleaning head: Clean the brush tunnel.
Only with R cleaning head: Clean the water distribution strip on the cleaning head.
For longer periods of disuse, shut down the device when the battery is fully charged. Fully charge the battery at least once a month

Annually
Have the prescribed inspection performed by Customer Service.

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 work
Turn over or replace the worn suction lips
The suction lips must be turned over or replace when they have worn down to the wear mark.

Wear mark
Suction lip
1. Remove the suction bar.
2. Unscrew the star handles.
3. Pull off the plastic parts.
4. Pull off the suction lips.
5. Push in the turned over or new suction lips.
6. Push on the plastic parts.
7. Screw in and tighten the star handles.

Cleaning the coarse dirt filter

Open the waste water tank cover.
1. Coarse dirt filter
2. Fluff filter
Pull the coarse dirt filter upwards and off.
Rinse off the coarse dirt filter under running water.
Reinsert the coarse dirt filter into the waste water tank.

Cleaning the float and fluff filter

Open the waste water tank cover.
1. Float
2. Fluff filter
Rinse the float with clear water.
Rinse the float switch with clear water.
Remove and clean the fluff filter.

Replacing the disc brush

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

Raise the cleaning head.
Push the brush replacement pedal down.
Pull the disc brush sideways and out from underneath the cleaning head.
Hold the new disc brush under the cleaning head, then press upwards and latch it into position.

Cleaning the fresh water filter

Drain the fresh water (see chapter “Draining fresh water”).
Unscrew the fresh water tank cap.
1. Fresh water filter
2. Fresh water tank lock
3. Pull out the freshwater filter and rinse with clean water.
4. Insert the fresh water filter.
5. Fit the fresh water tank lock.
  Note: Take care to ensure that the hose connection in the freshwater tank cap is positioned at the lowest point in the tank after screwing the cap in place.

Cleaning batteries

Wear safety goggles, protective clothing and protective gloves.
Keep the battery cell plugs closed.
Remove the batteries.
Only clean the plastic parts of the batteries and the battery compartment with water or water-soaked cleaning cloths without additives.
Dry the surfaces after cleaning.
Reinstall the batteries.

Resetting the maintenance counter
If maintenance work shown in the display has been carried out, the corresponding maintenance counter must then be reset.

Note
Resetting the maintenance counters is described in the chapter “Grey Intelligent Key”.

Troubleshooting guide

DANGER
The device can start unintentionally
People working on the device can be injured.
Remove the Intelligent Key prior to all work on the device.
Before carrying out any work, pull the mains plug of the
internal charger out of the socket.
Disconnect the battery connector before performing any work.

Drain the waste water.
Drain the remaining fresh water.
Note
If the malfunction cannot be remedied with the following instructions, contact Customer Service.

Malfunctions with information shown on the display
If the displayed malfunction is not in the following list, do the following:

Turn the key-operated switch to “OFF”.
Wait 10 seconds.
Set the program switch to the previous function.
If the malfunction recurs, call Customer Service

Warranty

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 manufac-turing defect is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site.
(See overleaf for the address)

Accessories

Cleaning head with disc brushes accessories

A: Packaging unit, B: Quantity required by the device

Technical data

www.kaercher.com/welcome

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Alfred Kärcher SE & Co. KG
Alfred-Kärcher-Str. 28-40
71364 Winnenden (Germany)

Documents / Resources

KARCHER BD 75-120 R Classic Bp Scrubber Dryer [pdf] Instruction Manual
BD 75-120 R Classic Bp, BD 75-120 R Classic Bp Scrubber Dryer, Scrubber Dryer, Dryer