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6. Adjust the screw so that the spirit level indicator is
between the two lines.
7. Tighten the M 12 nut while holding the
M 10 hexagon head screw with an open-end
wrench.
8. To check the new setting, move the device forward
a short distance in suction mode with the suction bar
lowered and observe the spirit level. Repeat the ad-
justment process if necessary.
Adjusting the height
The height adjustment affects the bending of the suction
lips on contact with the floor.
Note
Standard setting: 3 washers above, 3 washers below
the suction bar.
Uneven floor: 5 washers above, 1 washer below the
suction bar.
Very smooth floor: 1 washer above, 5 washers below
the suction bar.
1. Unscrew the nuts.
Illustration L
Nut
1
Washer
2
´
Spacer roller with holder
3
2. Place the desired number of washers between the
suction bar and the spacer roller.
3. Fit the remaining unused washers above the spacer
roller.
4. Screw on the nut and tighten.
5. Repeat the entire procedure at the second spacer
roller.
Note
Set both spacer rollers to the same height.
Adjusting the side pull of the brush
(Only with D 51 cleaning head)
If the device pulls to one side during cleaning, this can
be remedied by adjusting the brush tilt.
Note
After changing the brush/pad, it may be necessary to re-
adjust the side pull.
1. Adjust the brush tilt rotary knob until the device
moves straight ahead.
Illustration M
Brush inclination rotary knob
1
Switching on the device
1. Assume a seated position.
2. 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
● Battery charge state and number of operating hours
Driving
Note
The device is constructed so that the cleaning head pro-
trudes to the right. This makes it possible to work clearly
and close to the edge.
1. Insert the Intelligent Key.
2. Pivot the suction bar lowering lever upwards.
3. Press the raise /lower cleaning head pedal down
and latch it towards the right.
4. Set the program switch to the desired program.
5. Drive the device.
a Push the driving lever forward.
The device moves forward.
b Push the driving lever backwards.
The device moves in reverse.
Note
The device moves only when the driving lever is moved
by 5°.
6. Release the driving lever.
The device stops.
Cleaning
ATTENTION
Risk of damage
The floor covering can be damaged if the device is op-
erated on the same spot for a long time.
Do not operate the device continuously on the same
point.
1. Insert the Intelligent Key.
2. Set the program switch to the desired cleaning pro-
gram.
3. Pivot the lever downwards to lower the suction bar.
4. Press the cleaning head raise/lower pedal down,
move it to the left and let it go up.
5. Push the driving lever forward and drive over the ar-
ea to be cleaned.
18
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, switch off the vacuuming
function and drive to the location for emptying the waste
water tank.
Finishing operation
Finishing cleaning
1. Turn the water quantity regulating knob to "OFF"
(not for the DOSE version).
2. Release the driving lever.
3. Press the raise /lower cleaning head pedal down
and latch it towards the right.
4. Continue moving a short distance.
The residual water is vacuumed up.
5. Pivot the suction bar lowering lever upwards.
Draining the waste water
WARNING
Environmental pollution!
Environmental pollution due to improper disposal in
waste water.
Observe the local waste water treatment regulations.
1. Remove the drain hose from the support and lower
it over a suitable collecting device.
Illustration N
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.
Waste water tank flushing system
1. Remove the waste water drain hose from the holder
and lower it over a suitable collecting device.
2. Open the dosing unit cover at the drain hose.
3. Open the waste water tank cover.
4. Pull the flexible cap off the flushing system.
5. Connect the water hose to the flushing system.
Illustration O
Lock
1
Tank ventilation flap
2
Flushing system water connection
3
6. Close the waste water tank cover.
7. Open the water supply and flush the waste water
tank for about 30 seconds.
If necessary, repeat the flushing process 2 - 3 times.
8. Close the water supply and disconnect the hose
from the device.
9. Reattach the flexible cap to the water inlet of the
flushing system.
10. Close the cover of the waste water tank. Press the
tank ventilation flap in so that a gap remains open
and the waste water tank can dry.
11. Push the waste water drain hose into the holder and
closed the cover of the dosing device.
Draining fresh water at the cap
1. Open the fresh water tank cap.
2. Drain the fresh water.
3. Clean the filter.
4. Fit the fresh water tank cap.
Draining fresh water via the filling level indicator
1. Remove the filling level indicator hose from the hold-
er and pivot it down.
2. Reattach the hose.
Emptying the coarse dirt container
(R cleaning head only)
1. Lift the coarse dirt container and pull it out.
Illustration P
Coarse dirt container
1
2. Empty the coarse dirt container and clean it if nec-
essary.
3. Reinstall the coarse dirt container.
Parking the device
1. Turn the program switch to position "0".
2. Remove the Intelligent Key.
3. Press the raise/lower cleaning head lever down and
latch it towards the right.
4. Pivot the suction bar lowering lever upwards.
5. Secure the device against rolling away.
6. Close the cover of the waste water tank. Press the
tank ventilation flap in so that it engages in the
groove of the fresh water tank so that the waste wa-
ter tank can dry.
7. Charge the battery if necessary.
English
Transport
DANGER
Driving on slopes
Risk of injury
Observe the maximum permissible gradient when oper-
ating 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 dirt and fresh water tanks
empty.
Only load the device with the assistance of another per-
son or by using the drive.
1. Press the raise/lower cleaning head pedal down and
latch it towards the right.
2. Remove the brushes to avoid damage.
3. Remove the suction bar from the device.
4. When transporting in vehicles, secure the device
against slipping and tipping over using the transport
eyelets according to the respectively applicable
guidelines.
Illustration Q
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 dur-
ing storage.
Care and maintenance
DANGER
Inadvertently starting up device
Risk of injury
Turn the program switch to the "0" position.
Remove the Intelligent Key prior to all work on the device.
Pull out the charger mains plug.
Drain and dispose of the waste water and fresh water.
Safety inspection/maintenance contract
You can agree on regular safety inspections or close a
maintenance contract with your dealer. Please seek ad-
vice 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.
Drain the waste water.
Clean the waste water tank with the waste water
tank flushing system.
Remove the coarse dirt filter from the waste water
tank and clean it.
Check the turbine screen, remove it if necessary
and clean it.
Clean the exterior of the device using a damp cloth,
wetted with a mild washing lye.
Only with R cleaning head: Remove the coarse dirt
container and empty it.
Only with R cleaning head: Clean the water distribu-
tion strip.
Check the suction lips, check for wear and replace if
necessary.
Clean the squeegee blades on the cleaning head,
check for wear and replace if necessary.
Clean the brushes, check for wear and replace if
necessary.
Close the cover of the waste water tank. Press the
tank ventilation flap in so that a gap remains open
and the waste water tank can dry.
Charge the battery.
Lead-acid 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.
Li-Ion battery:
Recharge as necessary.
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