READ ALL INSTRUCTIONS BEFORE USING THIS APPLIANCE

• Do not allow to be used as a toy. Close attention is necessary when used by or near children.

• Use only as described in this manual. Use only manufacturer’s recommended attachments.

• Do not use with damaged cord or plug. If the unit is not working as it should, has been dropped, damaged, left outdoors, or dropped into water, return it to a service center.

• Do not pull or carry by the cord, do not use cord as a handle, do not close a door on the cord, or pull cord around sharp edges or corners. Do not run appliance over cord. Keep cord away from heated surfaces.

• DO NOT UNPLUG BY PULLING CORD. To unplug, grasp plug, not cord.

• Do not handle plug or appliance with wet hands.

• Do not put any objects into openings. Do not use if openings are blocked; keep free of dust, lint, hair, and anything that may reduce air flow.

• KEEP HAIR, CLOTHING, LOOSE JEWELRY, FINGERS and all parts of the body away from openings and moving parts.

• Turn off all controls before unplugging.

• Use extra care when cleaning on stairs.

• Do not use to pick up flammable or combustible liquids, such as gasoline, or use in areas where they may be present.

• Connect to a properly grounded outlet only. See Grounding Instructions.

• Always disconnect cord from electrical outlet before servicing appliance.

• Never sweep off explosive liquids, combustible gases or undiluted acids and solvents. This includes petrol, paint thinner or heating oil which can generate explosive fumes or mixtures upon contact with the air. Acetone, undiluted acids and solvents must also be avoided as they can harm the materials on the machine.

• Do not vacuum up burning or smouldering objects!

This device must be grounded. If it should malfunction or break down, grounding provides a path of least resistance for electric current to reduce the risk of electric shock.

This device is equipped with a cord having an equipment grounding conductor and ground plug.

The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.

CONNECT TO A PROPERLY GROUNDED OUTLET ONLY

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1. Grounded outlet
2. Grounded outlet box
3. Grounded pin

The owner and/or user must have an understanding of the manufacturer’s operating instructions and warnings before using this device.

Warning information should be emphasized and understood.

If the operator is not fluent in English, the manufacturer’s instructions and warnings shall be read to and discussed with the operator in the operator’s native language by the purchaser/ owner, making sure that the operator comprehends its contents.

Owner and/or user must study and maintain for future reference the manufacturers’ instructions.

Before starting operation, the device must be in the operating position.

Do not start or operate the device, any of its functions or attachments, from any place other than from the designated operator's position.

Before leaving the operator’s position:

1. bring the device to a complete stop;

2. if the device must be on an incline, block the wheels.

Maintain a safe distance from the edge of ramps, platforms, and other similar working surfaces.

Do not add to, or modify the device.

Do not block access to fire aisles, stairways or fire equipment.

Yield the right of way to pedestrians and emergency vehicles such as ambulances and fire trucks.

Cross railroad tracks at an angle wherever possible. Do not park closer than 6 ft (1800 mm) to the nearest rail of a railroad track.

Keep a clear view of the path of travel and observe for other traffic, personnel, and safe clearances.

Under all travel conditions, operate the device at a speed that will permit it to be brought to a stop in a safe manner.

Do not indulge in stunt driving or horseplay.

Slow down for wet and slippery floors. Before driving over a dockboard or bridge plate, be sure that it is properly secured. Drive carefully and slowly across the dockboard or bridge plate, and never exceed its rated capacity.

When negotiating turns, reduce speed to a safe level consistent with the operating environment. Make the turns smoothly.

If the device is found to be in need of repair or in any way unsafe, or contributes to an unsafe condition, the matter shall be reported immediately to the user’s designated authority, and the device shall not be operated until it has been restored to safe operating condition.

If during operation the device becomes unsafe in any way, the matter shall be reported immediately to the user’s designated authority, and the device shall not be operated until it has been restored to safe operating condition.

Do not make repairs or adjustments unless specifically authorized to do so.

Operation of the device may be hazardous if maintenance is neglected or repairs, rebuilds, or adjustments are not performed in accordance with the manufacturer’s design criteria. Therefore, maintenance facilities (on or off premises), trained personnel, and detailed procedures shall be provided.

Maintenance and inspection of the device shall be performed in conformance with the following practices:

1. a scheduled planned maintenance, lubrication, and inspection system shall be followed; consult the manufacturer’s recommendations.

2. Only trained and authorized persons shall be permitted to operate a powered floor scrubber. Operators of powered floor scrubbers shall be qualified as to visual, auditory, physical, and mental ability to operate the equipment safely.

Avoid fire hazards and have fire protection equipment present in the work area. Do not use open pans of fuel or flammable cleaning fluids for cleaning parts.

Any device not in safe operating condition shall be removed from service.

Repairs shall not be made in Class I, Class II, and Class III locations.

Fire Prevention.The device shall be kept in a clean condition and reasonably free of lint, excess oil, and grease.

Noncombustible agents are preferred for cleaning the device. Flammable liquids [those having flash points at or above 100°F (37,8°C)] are not allowed. Precautions regarding toxicity, ventilation, and fire hazard shall be appropriate for the agent or solvent used.

Nameplate Visibility. The device type designations as shown on the nameplate and the type markers shall not be covered over with paint so that their identification information is obscured.

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.

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 setting the water volume and detergent volume appropriately. The detergent dosing is adjusted via the amount added to the tank.

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.

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 not suitable for use in potentially explosive environments.

• The device is approved for operation on surfaces with a maximum slope (see chapter Technical data).

The packing materials can be recycled. Please dispose of packaging in accordance with the environmental regulations.

Electrical and electronic appliances 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 threat to human health and the environment. However, these components are required for the correct operation of the appliance. Appliances marked by this symbol are not allowed to be disposed of together with the household rubbish.

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

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 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)

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.

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

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

The device is approved for operation on surfaces with a specified limited slope (see Chapter Technical data).

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

The device switches off when the safety switch is released.

Pulling the key out of the key-operated switch secures the device against unauthorised use.

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.

• Control elements for the cleaning process are yellow.

• Control elements for maintenance and servicing are light grey.

	Fresh water tank drain opening
	Waste water tank drain opening
	Increased cleaning head contact pressure
	Battery access
	Fresh water tank filling level (50%)
	Insert the charger plug here
	Lashing point
	* Mop holder
	ATTENTION Incorrect socket Risk of damage DO NOT insert the charger plug here
	Normal cleaning head contact pressure
	Raise the cleaning head
	Pedal for raising/lowering the cleaning head
	Brush replacement pedal

* optional

1. Remove the carton.

2. Remove the straps.

3. Remove the wooden blocks fastened to the pallet by screws.

4. Using the 3 upper reinforcing boards of the carton packaging and the securing board screwed laterally on the pallet, place a ramp in front of the pallet and secure it using board pallet screws.

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   1. Securing board
   2. Beam
   3. Reinforcing board

5. Push the beam which has been unscrewed from the pallet under the ramp for support and screw into place.

6. Press the cleaning head lever down and latch it in place.

7. Only for BD 80/100 and BR 85/100: Press the brake lever down.

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   1. Brake lever

   Note

   For BD 70/75 and BR 75/75, there is no brake. Releasing the brake is not necessary with this device.

8. Pull the device backwards off the pallet.

9. Only for BD 80/100 and BR 85/100: Press the brake lever up.

1. Insert the suction bar in the suction bar mount.

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2. Tighten the wing nuts.

3. Fit the suction hose.

* Minimum volume of the battery charging room

** Minimum airflow between battery charging room and environment

For initial installation, an additional battery installation kit is required:

1. 2638-198.0

2. 2638-162.0

3. 2638-106.0

* Minimum volume of the battery charging room

** Minimum airflow between battery charging room and environment

For initial installation, an additional battery installation kit is required:

1. 2638-162.0

2. 2638-106.0

3. 2638-197.0

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.

ATTENTION

Risk of damage from AGM and gel batteries!

Opening or drilling the battery housing will damage an AGM or gel battery. It must then be replaced.

Do not open the battery housing and do not drill any holes.

Do not cover the pressure relief valve and do not change it.

1. Only charge AGM and gel batteries using the specified chargers, see chapter: Charging the battery.

WARNING

Risk of injury due to the device tipping over!

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. Drain the waste water.

2. Pivot the waste water tank upwards.

3. Place the battery in the device as shown. Important: Push the batteries all the way back!

   BD 80/100 and BR 85/100

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   170 Ah, 2.815-092.0

   180 Ah, 2.815-101.0

   240 Ah, 2.815-105.0

   285 Ah, 2.815-095.0

   1. Spacers

   BD 70/75 and BR 75/75

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   115 Ah, 2.815-091.0

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   170 Ah, 2.815-092.0

   180 Ah, 2.815-101.0

   1. Spacers
   2. Battery holder
   3. Additional weights

4. Insert a spacer between the right batteries and the fresh water tank,

   1. for 115 Ah battery set: 1 piece lengthwise flat.

   2. for battery sets other than 115 Ah: 2 pieces lengthwise upright on top of each other.

5. For BD 70/75 with 115 Ah battery set: Insert the 4 additional weights.

6. Attach the battery fastener, to do so

   1. for BD 70/75: Install the 2 battery holders and for 115 Ah:  Tighten at the left and middle threaded holes.For BR 75/75 and BD 70/75: 170 Ah / 180 Ah: Tighten at the right and middle threaded holes.

   2. For BD 80/100 and BR 85/100: Insert one or two spacers flat lengthwise or vertically between the front batteries and the fresh water tank so that the batteries cannot slip forward.

7. Connect the poles to the connection cables from the battery installation kit.

8. Clamp the connecting cables on the (+) and (‑) battery terminals that are still free.

9. Connect the device-side battery connector to the battery-side battery connector.

10. Pivot the waste water tank downwards.

1. Turn the key-operated switch to "0" and remove the key.

2. Disconnect the battery plug.

3. Drain the waste water.

4. Pivot the waste water tank upwards.

5. Disconnect the device-end cable from the negative terminal of the battery.

6. Disconnect the remaining cables from the batteries.

7. For BD 80/100: Remove the spacer(s) between the front batteries and the fresh water tank.

8. For 115 Ah battery set: Take out the additional weights.

9. Remove the batteries.

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

The average charging time is approx. 10-15 hours.

The device cannot be used during the charging process.

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

2. Pull out the device-side battery connector.

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   1. Battery plug, device side
   2. Battery plug, battery side

3. Connect the battery-side battery connector to the charger.

4. Plug the mains plug of the charger into the socket.

5. Carry out the charging process in accordance with the operating instructions for the charger.

6. Connect the device-side battery connector to the battery-side battery connector.

1. Open the fresh water tank cap.

2. Fill fresh water (maximal 122 °F (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.

1. Fill the detergent into the fresh water tank.

   Note: The cap for the fresh water tank filling hole can be used for measuring the correct quantity of detergent. It has a measuring scale marked on the inner side.

1. Adjust the water volume via the regulating knob to suit 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.

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. Loosen the screw.

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   1. Screw

2. Adjust the inclination of the suction bar.

3. Tighten the screw.

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

1. Push the device a small distance forwards.

2. Compare the bending of the suction lips with the figure below.

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   1. Spacer roller with holder
   2. Washer
   3. Screw

3. Unscrew the screw.

4. Insert a sufficient number of washers between the suction bar and spacer roller to create the correct bending of the suction lip.

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

6. Screw in and tighten the screw.

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

8. Push the device a small distance forwards.

9. Check the bending of the suction lips over the entire length.

10. Repeat the adjustment procedure if necessary.

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

1. Set the driving direction switch to "forward".

1. Turn the working speed rotary knob to the desired value.

   The speed is shown on the display during the adjustment. The display is shown in percentage of the maximum speed.

2. Set the water volume at the regulating valve.

3. Press the suction bar lever downwards.

   The suction bar lowers.

   Vacuuming begins.

4. Press the cleaning head lever downwards, unlatch it and allow it to move upwards.

5. Pull the safety switch towards the push handle.

   The cleaning head starts up and the device moves at the set speed.

1. Let go of the safety switch.

2. Lift the cleaning head lever up with your hand and latch it towards the right.

1. Let go of the safety switch.

2. Press the cleaning head lever down and latch it in place.

3. Continue moving a short distance.

   The residual water is vacuumed up.

4. Lift the suction bar.

   The suction continues to run for 10 seconds.

5. Turn the key-operated switch to "0".

6. Charge the battery if necessary.

1. Remove the drain hose from the support and lower it over a suitable collecting device.

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2. Press the dosing unit together or kink the hose.

3. Open the dosing unit cover.

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

5. Rinse the waste water tank with clear water.

1. Pull off the filling level indicator hose and swivel it down.

1. Unscrew the fresh water tank cap.

2. Allow the fresh water to drain away.

3. Fit the fresh water tank cap and screw into place.

   Note: Take care to ensure that the hose connection in the fresh water tank cap is positioned at the lowest point in the tank after screwing the cap in place.

1. Press the cleaning head lever down and latch it in place.

2. Raise the suction bar.

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

4. Select the travel direction at the travel direction switch.

5. Pull the safety switch towards the push handle.

6. When transporting in vehicles, secure the device against slipping and tipping over according to the applicable guidelines.

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7. First fit the strap under the waste water tank.

• 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.

• Drain and dispose of the waste water and fresh water.

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

A detailed description of the individual maintenance work is provided in Chapter Maintenance work.

• Drain the waste water.

• Rinse the waste water tank with clear water.

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

• Check the fluff filter and clean if required.

• Clean the coarse dirt filter.

• Clean the coarse dirt filter.

• Only BR variants: Remove and empty the coarse dirt receptacle.

• Only BR variants: Clean the water distribution channel.

• Clean the suction lips, check for wear and adjust the height or replace if necessary.

• Check the disc brushes 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.

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

A detailed description of the individual maintenance work is provided in Chapter Maintenance work.

1. Drain the fresh water tank and flush out deposits.

2. Clean the fresh water filter.

3. Clean the float and fluff filter.

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

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

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

7. If the device is not used for a longer period of time, shut down the device when the batteries are fully charged. Fully charge the battery at least once a month.

• Have the prescribed inspection performed by Customer Service.

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

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1. Wear mark
2. Suction lip

1. Remove the suction bar.

2. Unscrew the star handles.

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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.

1. Drain the fresh water (see Chapter Draining fresh water).

2. Unscrew the fresh water tank lock.

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   1. Fresh water tank lock
   2. Fresh water filter

3. Pull out the fresh water 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 fresh water tank cap is positioned at the lowest point in the tank after screwing the cap in place.

1. Open the waste water tank cover.

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   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.

1. Open the waste water tank cover.

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   1. Latching hooks
   2. Float
   3. Fluff filter
   4. Float housing

2. Release the latching hooks.

3. Pull the float housing downwards and off.

4. Remove the float from the float housing and clean it.

5. Remove the fluff filter and clean it.

6. Assemble all parts in the reverse order.

1. Raise the cleaning head.

2. Press the brush replacement pedal down, beyond the zone of resistance.

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   1. Brush replacement pedal

3. Pull the 1st 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.

5. Repeat the procedure for the 2nd disc brush.

1. Raise the cleaning head.

2. Pull out the brush replacement handle.

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   1. Brush replacement handle
   2. Bearing cover with squeegee blade
   3. Roller brush

3. Remove the bearing cover including the squeegee blade.

4. Pull out the roller brush.

5. Fit the new roller brush and centre it on the driver.

6. Install the bearing cover with the squeegee blade.

   Note

   Make sure the roller brush sits on the mounting mandrel and not underneath.

7. Pivot the brush replacement handle upwards and latch it into place.

8. Repeat the entire procedure at the other side.

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1. Water distribution strip
2. Unlocking button

1. Press lock in the direction of the arrow and hold it there.

2. Pivot water distribution strip forward.

3. Pull out water distribution strip lengthways.

4. Clean the water distribution strip.

5. Fit water distribution strip back into the cleaning head and snap the lock into place.

• 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.

• BD 70/75 W Classic Bp 

• BR 75/75 W Classic Bp 

• BD 80/100 W Classic Bp 

• BR 85/100 W Classic Bp