Kärcher BD 70/75 W Classic Bp Mode D'emploi page 11

Filling with operating materials
Filling fresh water
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.
Notes on detergents
WARNING
Risk of damage to the device!
If unsuitable detergents are used, the device may get damaged.
Use only recommended detergents. The operator carries all in-
creased 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 packag-
ing.
Note
Do not use heavily foaming detergent.
Recommended detergents
Application
Floor maintenance cleaner extra low foam-
ing with EU Ecolabel
Highly wetting universal cleaner
Intensive alcohol cleaner for floors and
surfaces. Well-suited for hard rock such as
granite
Fine stone cleaner, surfactant-free
Universal decoater, suitable for linoleum
Acidic vending machine basic cleaner.
Suitable for sanitary areas and construc-
tion cleaning
Industrial maintenance cleaner
Industrial basic cleaner and alkaline de-
coater
Surface disinfectant cleaner
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 meas-
uring scale marked on the inner side.
Adjusting the water volume
1. Adjust the water volume via the regulating knob to suit the de-
gree 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 clean-
ing 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.
Illustration N
Screw
1
2. Adjust the inclination of the suction bar.
3. Tighten the screw.
Detergent
APPROX. 50 C
RM 756
RM 755
RM 753
RM 754
RM 751
RM 69
RM 752
RM 732
Detergent
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.
Illustration O
´
Spacer roller with holder
1
Washer
2
Screw
3
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
Note
The direction of travel can be changed during the cleaning oper-
ation. This way, a certain position can be intensively cleaned by
driving back and forth several times.
1. Set the driving direction switch to "forward".
Note
To reduce the vehicle width, the suction bar can be mounted on
the transport holder. Narrow passages can be easily passed
through in this way.
Note
The inclination and height of the suction bar can be adjusted to
improve the vacuuming results (see chapter Adjusting the suc-
tion bar).
Note
When the waste water tank is full, the float switch closes the suc-
tion opening and the suction turbine runs at a higher speed. In
this case, raise the suction bar and drive to the location for emp-
tying 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 brush contact pressure (BD variant only)
1. Let go of the safety switch.
2. Lift the cleaning head lever up with your hand and latch it to-
wards the right.
English
Adjusting the height
Cleaning
Switching on the device
Driving
Cleaning
11