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 chapterTechnical data) enable effective cleaning with a long working time.

BD 50/55 W Classic Bp is with a drive motor.

BD 50/55 C Classic Bp is without 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 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.

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

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 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").

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

The device switches off when the safety

switch is released.

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.

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1. Coarse dirt filter
2. Fluff filter
3. Float
4. Brush head
5. Disk brush
6. Handle
7. Safety switch
8. Waste water tank drain hose
9. Waste water tank lid
10. Home base retaining rail
11. Waste water tank
12. ** Battery
13. Fresh water filter
14. Fresh water tank drain
15. Brush release pedal
16. Splash guard
17. Fresh water tank
18. Rating plate
19. Hose clamp
20. Fresh water tank filling funnel
21. Suction bar
22. Suction bar height adjustment
23. Brush head pedal
24. Wing nuts for fastening the suction bar
25. Suction bar inclination adjustment
26. Suction hose
27. Fresh water filling level display
28. Water volume regulation knob
29. Battery plug connector
30. Suction bar lever
31. Program switch

** Not in scope of delivery

• The control elements for the cleaning process or daily maintenance are yellow.

• The control elements for maintenance and servicing are light grey.

	Fresh water tank drain opening
	Waste water tank drain opening
	Fresh water tank filling level (25%)
	Insert the charger plug here
	Lashing point
	* Mop holder
	ATTENTION Incorrect socket Risk of damage DO NOT insert the charger plug here
	Pedal for raising/lowering the brush head
	Brush release pedal

* optional

1. Insert the vacuum bar into the vacuum bar suspension in such a manner that the profiled sheet is positioned above the suspension.

2. Tighten the wing nuts.

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3. Insert the suction hose.

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:

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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.

1. Drain the waste water.

2. Lift up the waste water tank, and set it aside.

3. Place the battery in the device as shown.

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   115 Ah, 2.815-091.0

   80 Ah, 2.815-090.0

   105 Ah, 2.815-100.0

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   76 Ah, 2.815-099.0

   1. Spacers

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

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

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

7. Recover the waste water tank.

1. Turn the program switch to "OFF”.

2. Disconnect the battery plug.

3. Drain the waste water.

4. Lift up the waste water tank, and set it aside.

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

6. Disconnect the remaining cables from the battery.

7. Remove the battery.

8. 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 connector, device side
   2. Battery connector, 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 (max. 50 °C) to the lower edge of the filling funnel.

   Note

   The fresh water hose can be clamped in place using the hose clip while filling.

3. Close the fresh water tank cap.

1. Fill the detergent into the fresh water tank.

   Note

   The cap for the fresh water tank filling funnel 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 brush 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. Park the device on a surface without a slope.

2. Drive the device a small distance forwards.

3. Read the spirit level.

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   1. Screw
   2. Nut
   3. Spirit level

4. Unscrew the nut.

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

6. Tighten the nut.

7. To check the new setting, move the device forward again a short distance. Repeat the adjustment process if necessary.

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.

   ---

   

   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. Set the program switch to the desired cleaning program.

   The display shows the following one after the other:

   • Kärcher

   • Charging state of the battery and number of operating hours

   • Period of time until the next after-sales servicing for the customer

   • Software version, control panel

   • Charging state of the battery and number of operating hours

1. Set the water volume at the regulating valve.

2. Press the suction bar lever downwards.

   The suction bar lowers.

   Vacuuming begins.

3. Press the brush head pedal downwards, unlatch it and allow it to move upwards.

4. Pull the safety switch towards the push handle.

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

1. Let go of the safety switch.

2. Press the brush head pedal 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 program switch to off.

6. Charge the battery if necessary.

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

   ---

   

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. Unscrew the fresh water drain cap.

2. Allow the fresh water to drain away.

3. Fit the fresh water drain 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 brush head pedal down, and latch it in place.

2. Raise the suction bar.

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

   ---

   

• 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 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. For longer periods of disuse, shut down the device when the battery is 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.

   ---

   

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. 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. Drain the fresh water (see Chapter Quickly draining fresh water).

2. Unscrew the fresh water tank cap.

   ---

   

   1. Fresh water tank cap
   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 cap.

   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.

   ---

   

   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 brush head.

2. Push the brush release pedal down.

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

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

• 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.

The warranty conditions issued by our sales company responsible apply in all countries. We shall remedy possible malfunctions on your device within the warranty period free of cost, provided that a material or manufacturing defect is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site.

You can find more detailed information at: www.kaercher.com/dealersearch

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: Equipment Management Plug-in Connect

Type: 1.127-xxx

2014/53/EU

2011/65/EU

EN 60335-1

EN 623681-1: 2014

EN 62311: 2008

EN IEC 63000: 2018

EN 301 908-1 V15.1.1

EN 301 511 V12.5.1

EN 300 328 V2.2.2

EN 301 489-52 V1.2.1

-

The signatories act on behalf of and with the authority of the company management.

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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, /03/01

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: Equipment Management Plug-in Connect

Type: 1.127-xxx

S.I. 2017/1206 (as amended)

S.I. 2012/3032 (as amended)

EN 60335-1

EN 623681-1: 2014

EN 62311: 2008

EN IEC 63000: 2018

EN 301 908-1 V15.1.1

EN 301 511 V12.5.1

EN 300 328 V2.2.2

EN 301 489-52 V1.2.1

-

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, /03/01