KARCHER BD 70/ Floor Washing Machine With Suction User Manual

KARCHER BD 70/ Floor Washing Machine With Suction

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 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 thefresh 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 catalog 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 not suitable for use in potentially explosive environments.
• The device is approved for operation on surfaces with a maximum slope (see chapter Technical data).

Environmental protection

The packing materials can be recycled. Please dispose of the 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 household rubbish.

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

WARNING
Device tipping over
Danger of injury Do not operate the device on sloping surfaces. 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. Never modify or bypass safety devices.

Safety switch
The device switches off when the safety switch is released.

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

Warning symbols
Observe the following warnings when handling the batteries:

Description of the unit

Overview of the unit

1. Coarse dirt filter
2. Fluff filter
3. Float
4. Cleaning head
5. Brush replacement pedal
6. Push handle
7.  Safety switch
8. Waste water tank cap
9. Waste water tank
10. Battery
11. Fresh water filter
12. Fresh water tank lock
13. Disc brush
14. Fresh water tank
15. Type plate
16. Hose switch
17. Fresh water tank filling hole
18. Suction bar
19. Suction bar height adjustment
20. Suction bar inclination adjustment
21. Wing nuts for fastening the suction bar 23 Suction hose
22. Fresh water filling level display Fresh water drain hose
23. Cleaning head lever
24. Water volume regulation knob
25. Homebase retaining rail
26. Suction bar lever
27. Battery plug connector
28. Key-operated switch
29. Display
30. Working speed rotary knob
31. Driving direction switch
32. Waste water tank drain hose with dosing unit
    • Not in scope of delivery

Color coding

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

Symbols on the device

Installation

Unloading

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.

5. Securing board

6. Beam

7. Reinforcing board

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

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

10. Only for BD 80/100: Press the brake lever down.

11. Brake lever
    Note
    For BD 70/75, there is no brake. Releasing the brake is not necessary with this device.

12. Pull the device backward off the pallet.

13. Only for BD 80/100: Press the brake lever up.

Installing the suction bar

1. Insert the suction bar in the suction bar mount.
2. Tighten the wing nuts.
3. Fit the suction hose.

Batteries
Recommended battery sets BD 70/75

• 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 2.638-198.0
  • 2 2.638-162.0
  • 3 2.638-106.0

Recommended battery sets BD 80/100

• 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 2.638-162.0
  • 2 2.638-106.0
  • 3 2.638-197.0

Low-maintenance batteries (wet batteries)

DANGER
Refilling discharged batteries with water Danger of acid burns from escaping acid,destruction of clothing Wear safety goggles when handling the batteries. 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.

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.

Maintenance-free batteries (AGM and gel batteries)

ATTENTION
Risk of damage when opening AGM and gel batteries! AGM and gel batteries are maintenance free and have a closed battery housing. Refilling them with distilled water or battery acid is not possible and is not necessary. 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.

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.

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:

• 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

1. Spacers
2. Battery holder
3. Additional weights
4. Insert a spacer between the right batteries and the fresh water tank,
   • for 115 Ah battery set: 1 piece lengthwise flat.
   • for battery sets other than 115 Ah:
5. pieces lengthwise upright on top of each other.
6. For BD 70/75 with 115 Ah battery set: Insert the 4 additional weights.
7. Attach the battery fastener, to do so a for BD 70/75: Install the 2 battery holders and for 115 Ah: Tighten at the left and middle threaded holes. For 170 Ah / 180 Ah: Tighten at the right and middle threaded holes.
   • for BD 80/100: 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.
8. Connect the poles to the connection cables from the battery installation kit.
9. Clamp the connecting cables on the (+) and (-) battery terminals that are still free.
10. Connect the device-side battery connector to the battery-side battery connector.
11. Pivot the waste water tank downwards.

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.

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 battery.
7. For BD 80/100: Remove the spacer(s) between the front batteries and the freshwater tank.
8. For 115 Ah battery set: Take out the additional weights.
9. Remove the battery.
10. Dispose of the used batteries in accordance with statutory provisions.

Initial startup

Charging the battery

DANGER
Inappropriate use of the charger Electric shock Adheres to the mains voltage and fuse values specified on the device type plate. Only use the charger in dry rooms with sufficient ventilation.

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.

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.

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.

1. Drive the device directly to the charger and do not drive on slopes.
2. Pull out the device-side battery connector.
3. Battery plug, device side
4. Battery plug, battery side
5. Connect the battery-side battery connector to the charger.
6. Plug the mains plug of the charger into the socket.
7. Carry out the charging process in accordance with the operating instructions for the charger.
8. Connect the device-side battery connector to the battery-side battery connector.

Operation

ATTENTION
Risks during operation Danger of injury Release the safety switch in the case of danger.

Filling with operating materials Filling 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 freshwater hose can be clamped with the hose holder during filling.

3. Close the fresh water tank lock.

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 solvents, salt and hydrofluoric acid. Adhere to the safety instructions stated on the detergent packaging.

Note
Do not use heavily foaming detergent. Recommended detergents

Detergent

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.

Adjusting the water volume

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 you achieve the desired cleaning result.

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

Adjusting the suction bar

Adjusting the inclination
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.
2. Screw
3. Adjust the inclination of the suction bar.
4. Tighten the screw.

Adjusting the height
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.
3. Spacer roller with holder
4. Washer
5. Screw Unscrew the screw.
6. Insert a sufficient number of washers between the suction bar and spacer roller to create the correct bending of the suction lip.
7. Fit the remaining unused washers above the spacer roller.
8. Screw in and tighten the screw.
9. Repeat the entire procedure at the second spacer roller.
10. Push the device a small distance forwards.
11. Check the bending of the suction lips over the entire length.
12. Repeat the adjustment procedure if necessary.

Cleaning 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 direction of travel can be changed during the cleaning operation. This way, a certain position can be intensively cleaned by driving back and forth several times.

1. Set the driving direction switch to “forward”.

Cleaning

Note
The inclination and height of the suction bar can be adjusted to improve the vacuuming results (see chapter Adjusting the suction bar).

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, raise the suction bar and drive to the location for emptying the waste water tank.

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.

Increasing the brush contact pressure

1. Let go of the safety switch.
2. Lift the cleaning head lever up with your hand and latch it towards the right.

Finishing operation

Finishing cleaning

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.

Draining the waste water

WARNING
Improper disposal of wastewater Environmental pollution Observes the local wastewater treatment regulations.

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.

Draining fresh water

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

Quickly draining fresh water

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 freshwater tank cap is positioned at the lowest point in the tank after screwing the cap in place.

Transport

DANGER
Driving on slopes Risk of injury Observe the maximum permissible inclination 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 transport. Only load the device with the assistance of another person or by using the drive.

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

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 service

DANGER Inadvertently starting up the device
Risk of injury, electric shock Turn the key-operated switch to “0” and remove the key before performing any work on the device. Pull out the charger mains plug.

• Drain and dispose of the wastewater 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
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 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.

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 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, and 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.

Annually

• Have the prescribed inspection performed by Customer Service.

Maintenance work

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

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

Cleaning the coarse dirt filter

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

Cleaning the fresh water filter

1. Drain the freshwater (see Chapter Draining freshwater).
2. Unscrew the fresh water tank lock.
3. Fresh water tank lock
4. Freshwater filter
5. Pull out the freshwater filter and rinse with clean water.
6. Insert the fresh water filter.
7. 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.

Clean the float and fluff filter

1. Open the waste water tank cover.
2. Latching hooks
3. Float
4. Fluff filter
5. Float housing
6. Release the latching hooks.
7. Pull the float housing downwards and off.
8. Remove the float from the float housing and clean it.
9. Remove the fluff filter and clean it.
10. Assemble all parts in the reverse order.

Replacing the disc brushes

1. Raise the cleaning head.
2. Press the brush replacement pedal down, beyond the zone of resistance. 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.

Troubleshooting guide

DANGER
Inadvertently starting up device Risk of injury, electric shock Turn the key-operated switch to “0” and remove the key before performing any 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.

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 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

Technical data

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: 1.127-xxx, 1.515-xxx

Currently applicable EU Directives

• 2006/42/EC (+2009/127/EC)
• 2014/30/EU
• 2014/53/EU (TCU)

Harmonized standards used

• EN 60335-1
• EN 60335-2-72
• EN 55012: 2007 + A1: 2009
• EN 61000-6-2: 2005
• EN 62233: 2008

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, 2021/02/01

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: 1.127-xxx, 1.515-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 60335-2-72
• EN 55012: 2007 + A1: 2009
• EN 61000-6-2: 2005
• EN 62233: 2008

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, 2021/02/01

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