Manual Karcher B50 W (page 19 of 296) (All languages)

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English 19

Monthly

Empty and flush the fresh water tank.

Clean the fresh water filter.

Clean the float.

For a temporarily shut-down device with lead-acid

battery: Perform equalization charging of the bat-

tery.

Check battery poles for oxidation, brush off if neces-

sary. Make sure the connection cables are firmly in

place.

Clean the seals between the waste water tank and

the cover, check for leaks and replace if necessary.

Only with R cleaning head: Clean the brush tunnel.

Only with R cleaning head: Pull the water distribu-

tion strip off the cleaning head and clean the water

channel.

Check the acid density of the cells if the lead batter-

ies are not maintenance-free.

For longer downtime periods, shut the device down

with fully charged batteries. Fully charge the battery

at least once a month.

Annually

Have the prescribed inspection performed by Cus-

tomer Service.

Maintenance work

Cleaning the coarse dirt filter

1. Open the waste water tank cover.

Illustration R

1Coarse 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.

Cleaning the fresh water filter

1. Drain the fresh water.

2. Unscrew the fresh water tank cap.

Illustration S

1Fresh water filter

2Fresh water tank lock

3. Pull out the fresh water filter and rinse with clear wa-

ter.

4. Insert the fresh water filter.

5. Fit the fresh water tank lock.

Turn over or replace the worn suction lips

The suction lips must be turned over or replaced when

worn out.

The suction lips can be turned 3 times until all 4 edges

are worn.

1. Remove the suction bar.

2. Unscrew the star handles.

Illustration T

1Star grip

2Strap

3Inner part of the suction bar

4Tension lock

3. Pull out the inner part of the suction bar.

4. Open the tension lock.

5. Remove the strap.

6. Release the suction lips from the inner part.

Illustration U

1Squeegee blade

2Support lip

3Inner part of the suction bar

4Strap

7. Press the turned or new suction lips onto the knobs

of the inner part of the suction bar.

8. Attach the strap.

9. Push the inner part of the suction bar into the upper

part.

10. Screw in and tighten the star handles.

Replacing the disc brush

Note

Replace the disc brushes when the bristle length has

reached 10 mm.

1. Press the raise/lower cleaning head lever down and

latch it towards the right.

2. Push the brush replacement pedal down.

3. Pull the disc brush sideways and out from under-

neath the cleaning head.

4. Hold the new disc brush under the cleaning head,

then press upwards and latch it into position.

Replacing the roller brushes

Note

Replace the roller brushes when the bristle length has

reached 10 mm.

1. Press the raise/lower cleaning head lever down and

latch it towards the right.

2. Press the Brush replacement button.

Illustration V

1Brush replacement button

2Bearing cover

3Roller brush

3. Pivot the bearing cover to the right.

4. Pull out the roller brushes.

5. Position the new front roller brush in the bearings.

6. Position the new rear roller brush in the bearings.

7. Pivot back the bearing cover and latch it into place.

Cleaning the water distribution strip

1. Push the locking lever to the left and simultaneously

pull the water distribution strip away from the clean-

ing head.

Illustration W

1Water distribution strip

2Locking lever

2. Remove the water distribution strip from the clean-

ing head.

3. Clean the water distribution strip.

4. Fit the left side of the strip into the cleaning head.

5. Pivot the water distribution strip towards the clean-

ing head and latch it into place on the right-hand

side.

Animated maintenance work

Troubleshooting guide

DANGER

Inadvertently starting up device

Risk of injury

Set the program switch to "0" prior to all work on the de-

vice.

Remove the Intelligent Key prior to all work on the de-

vice.

Pull out the charger mains plug.

Drain and dispose of the waste water and fresh wa-

ter.

Contact Customer Service in the case of malfunc-

tions that cannot be corrected using this table.

Malfunctions without information shown on the display

Malfunction Rectification

The device cannot be started 1. Insert the Intelligent Key.

2. Set the program switch to the desired program.

3. Operate the driving lever.

4. Check the batteries and charge if necessary.

5. Check that the battery terminals are correctly connected.

The water quantity is insufficient 1. Check the fresh water filling level and fill the tank if necessary.

2. Increase the water quantity.

aDOSE version: Set the water quantity with the water quantity button on the control panel.

bOther versions: Set the water quantity using the water quantity regulating knob.

3. Clean the fresh water filter.

4. R cleaning head: Clean the water distribution strip.

5. Check the hoses for clogging and clean if necessary.

The suction performance is too low 1. Set the programme switch to NORMAL or INTENSIVE MODE.

2. Set the suction power in the app to HIGH.

3. Shut down the device and drain the waste water.

4. Check that the cap on the waste water drain hose is closed.

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

6. Check the turbine screen for soiling and clean if necessary.

7. Clean the suction lips at the suction bar, turn over or replace if necessary.

8. Check the suction hose for clogging and clean if necessary.

9. Check the suction hose for leaks and replace if necessary.

10. Check the adjustment of the suction bar.

11. Hold the waste water tank by the recessed grip and pivot it sideways and upwards.

a Check the seal on the suction turbine.

b Check the seal on the suction duct.

Illustration X

1Suction duct seal

2Suction turbine seal

The cleaning results are unsatisfacto-

1. Reduce the driving speed.

2. Select a more intensive cleaning programme.

3. Check the brushes for wear and replace if necessary.

4. Check the brush for soiling and clean if necessary.

5. Check the suitability of the brush type and detergent used.

6. Check the water supply.

7. Increase the water quantity.

8. Use the two-step method: In the first pass clean without suction, in the second pass clean with suction.

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Karcher B50 W Manual

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