The waste container attachment can only be used in conjunction with a Kärcher brush sweeping system or scrubbing system. These attachments are described after the chapter.

The waste container can only be removed and set down when the support attachment kit (optional) is used. The description assumes the use of the support attachment kit.

DANGER

Risk of injury from the waste container

Keep a sufficient distance from the waste container and the supports when removing/installing.

Maintain a sufficient clearance to the hazard zone and stop raising/lowering of the waste container immediately when a person enters the hazard zone.

Secure the raised waste container with the safety supports when you work underneath.

Only remove the waste container when it is completely empty.

ATTENTION

Risk of injury and damage

Set the waste container down only on a level and smooth surface.

1. Empty the waste container before removing the waste container. See chapter "Emptying the waste container".

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Figure: Waste container secured

1. Waste container
2. Safety support
3. Sealing collar

2. Raise the waste container until the safety supports can be folded forward. See chapter "Emptying the waste container".

3. Lower the waste container onto the safety supports.

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1. Sealing collar
2. Hose clip

4. Remove the sealing collar by opening the hose clip (SW 7) and pulling off the sealing collar.

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Figure: Variant A with 2 short locking pins

1. Front locking pin, short
2. Spring pin
3. Rear locking pin, short

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Figure: Variant B with long locking pin

1. Locking pin, long
2. Spring pin
3. Hexagon bolt

5. Variant A: First pull out the spring pins and then pull out the front short locking pins (left and right).

6. Variant B: First pull out the spring pins and then completely pull out the long locking pins (left and right).

   1. Use an impact extractor (slide hammer) for pulling out

   2. For this, unscrew the hexagon bolt and screw the slide hammer into the existing thread.

7. Raise the waste container slightly and fold the safety supports to the rear and into the storage position.

8. Lower the waste container completely.

9. Depressurise the rear hydraulic system, see chapter "Hydraulic pressure relief".

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1. Rear hydraulic connections

10. Disconnect the hydraulic hoses of the waste container from the hydraulic connections.

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1. Power supply plug
2. High-pressure cleaner water connection (option)
3. High-pressure cleaner (Option)

11. Unplug the power supply plug.

12. Disconnect the reversing camera cable (if present).

13. With optional high-pressure cleaner: Disconnect the water connection.

14. Pivot the side covers (left and right) outwards.

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Figure: Attached locking button with inserted and secured support

1. Rear side cover
2. Rear support
3. Locking button (4x)
4. Crank

15. Caution: Before the supports are pushed in, all 4 locking buttons (scope of delivery of the "Supports" attachment kit) must be attached to the left front and rear as well as right front and rear of the waste container, adjusted and secured with the lock nuts. See "Installing the locking buttons" at the end of this chapter .

16. Push in the rear supports (left and right) all the way to the end stop while pulling out the red retaining head. Release the locking button to lock. The locking pin engages in the holes in the supports when locking. Check that the supports are locked securely.

17. Attach and secure the front supports as already described for the rear supports.

    Note

    The front supports are marked and only fit on the corresponding side.

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Figure: Variant A with 2 short locking pins

1. Rear locking pin, short
2. Spring pin

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Figure: Variant B with long locking pin

1. Locking pin, long
2. Hexagon bolt

18. With variant A: Crank up the rear supports until the locking pins at the rear can be pulled out.

19. To pull out the spring pin, first open the tailgate of the waste container. The tailgate is available in 2 different versions.

    1. Variant 1: The tailgate can be opened with a square key.

    2. Variant 2: The tailgate is a screwed sheet metal part, either remove the 4 screws or pull out the spring cotter pin through the side opening.

20. Pull out the spring pin.

21. Pull out the short locking pins (left and right).

22. With variant B: Check that the long locking pin has already been pulled out completely, if so, no further action is necessary.

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1. Ball sockets
2. Waste container
3. Recycling water valve

23. Alternately crank up the supports at the front and rear (left and right):

    1. Until the waste container is free above the ball sockets.

    2. Until the recycling water valve is exposed.

    3. Make sure that the front of the waste container does not press against the cab.

24. The waste container now stands free on the supports.

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Symbolic illustration: Waste container on supports

1. Waste container
2. Rear supports (2x)

   Note

   Supports are identical

3. Left front support

   Note

   Support is marked for left

4. Right front support

   Note

   Support is marked for right

25. Drive the rear of the vehicle carefully out from under the waste container.

Mounting the locking buttons (4x)

The locking buttons 6.321-295.0 are part of the "Supports" attachment kit

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1. Locking button
2. Counternut
3. Waste container frame for inserting the support

• Screw the locking button into the thread of the welded nut on the frame and adjust:

  1. If the setting is correct, the bolt of the pulled locking button releases the slot for the supports.

  2. Secure with counternut.

DANGER

Risk of injury from the waste container

Keep a sufficient distance from the waste container and the supports when removing/installing.

Maintain a sufficient clearance to the hazard zone and stop raising/lowering of the waste container immediately when a person enters the hazard zone.

Secure the raised waste container with the safety supports when you work underneath.

ATTENTION

Risk of injury and damage

Set the waste container down only on a level and smooth surface.

Check the correct seating of ball sockets and locking pins when installing.

If necessary, use the assistance of a second person (guide) when attaching the waste container.

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Figure: Waste container on supports

1. Waste container
2. Rear supports (2x)
3. Left front support
4. Right front support

The waste container is attached to the vehicle in the reverse order to removal, which is why the pictorial representation is omitted here.

1. Drive the vehicle carefully under the waste container.

   1. The side panels on the left and right must be open.

2. Lower the waste container by cranking the supports until the waste container lies securely in the 4 ball sockets. Use the assistance of a second person if necessary.

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1. Side cover
2. Support
3. Locking button
4. Crank

3. Pull the locking button and release the lock of the supports, pull out the supports (4x).

4. Insert the rear locking pins (left and right) and secure with spring pins.

5. Depressurise the rear hydraulic system, see chapter "Hydraulic pressure relief".

6. Connect the hydraulic hoses of the waste container (note the colours).

7. Connect the power supply plug.

8. With optional high-pressure cleaner: Connect the water connection.

9. Raise the waste container and secure it with the safety supports.

10. Fit the sealing collar.

11. Insert the front locking pins (left and right) and secure with spring pins.

12. Lower the waste container completely. Fold in the safety supports beforehand.

13. The waste container is now attached to the vehicle.

14. Select the appropriate > Sweep < program on the display.

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1. Emptying the waste container
2. Manual suction hose attachment kit (optional)

1. If a manual suction hose attachment kit is attached to the vehicle, fold it to the side and secure it before emptying. See chapter “Manual suction hose attachment”.

2. Drive the vehicle to the emptying position in slow transport mode.

3. Stop the vehicle.

4. Bring the travel direction lever into the neutral position (middle position).

5. Switch on the hydraulic system (PTO).

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1. Lift/empty waste container switch setting
2. Lower waste container switch setting

6. Operate the switch.

7. Empty the waste container.

   Note

   Always raise the waste container fully to the end position.

   If necessary, remove any adhering soiling with a dirt scraper (optional) and clean with water. See chapter "Cleaning the waste container"

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: Sweeper

Type: PF-E (MC 250)

2006/42/EC (+2009/127/EC)

2014/30/EU

2000/14/EC

EN 13019

CISPR 12

2000/14/EG: Annex V

MC 250 Euro 6

Measured: 106

Guaranteed: 108 99 *with optional sound proofing attachment kit (ex-factory)

MC 250 Level V

Measured: 105

Guaranteed: 108 99 *with optional sound proofing attachment kit (ex-factory)

The undersigned act on behalf and under the power of attorney 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, 2020/01/01

The emergency operation is required for the following activities:

• Raise lower the waste container if the device's hydraulics have failed, e.g. due to a failure of the engine.

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1. Emergency operation hydraulic valve
2. Manual pump
3. Knurled screw

1. With the engine switched off: Turn the knurled screw into the appropriate position, the waste container can be raised or lowered.

2. Operate the manual pump with the hand tube located in the box under the passenger seat.

3. Before starting work in the engine compartment, secure the raised waste container with the red safety supports (on the lifting cylinders) on the left and right.

The emergency lift pump can be used to manually raise or lower the waste container or grit container when the engine is switched off.

The emergency lift pump is accessible after swinging open the fresh water tank and is operated with a plug-in hand lever.

ATTENTION

Do not operate the emergency lift pump while the engine is running!

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1. Hand lever mount
2. Knurled screw
3. Function screw B
4. Function screw A
5. Emergency lift pump

Note

To lift or lower the waste container or grit container, set the knurled screw and the function screws A and B to one of the following positions:

Note

Home position:

Knurled screw: screwed in

Function screw A: screwed in

Function screw B: screwed in

Lift container:

Knurled screw: screwed out

Function screw A: screwed out

Function screw B: screwed in

Lower the container in front of the upper tipping point:

Knurled screw: screwed out

Function screw A: screwed out

Function screw B: screwed in

Lower the container from the rear end position:

Knurled screw: screwed out

Function screw A: screwed out

Function screw B: screwed out

1. Release the counternuts on the function screws A and B.

2. Manually turn the knurled screw and the function screws A and B to the required position.

3. Insert the hand lever into the hand lever mount and operate it several times until the waste container or grit container is raised or lowered.

4. Finally, turn the knurled screw and the function screws A and B to the home position.

5. Tighten the counternuts of the function screws A and B.

6. Remove the pump lever and stow it in the storage compartment under the passenger seat together with the hexagonal key.

The lock secures the attachments (e.g. sweeping system, front power lift). It is located on the left and right-hand side in front of the front wheel and can be identified as a yellow lever.

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1. Lock nut
2. Screw
3. Locking lever, yellow
4. Handle
5. Attachment point, vehicle/attachment

1. Opening the lock

   1. Unscrew the counternut.

   2. Loosen the screw from the left and right-hand locking lever by approx. 1 cm. The lock is released.

   3. Lift the locking lever via the side handle, then push it backwards. The attachment can be removed.

2. Closing the lock

   1. Insert the mounting arm of the attachment as far as its stop.

   2. Push the locking lever forwards.

   3. Tighten the screw; check to ensure the attachment is fixed securely in place.

   4. Tighten the lock nuts.

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Figure: Sweeping system attached

1. 2-brush sweeping system with suction mouth
2. Side brushes
3. Water connection
4. Hydraulic connection
5. Attachments power supply

A changing carriage is required for removing/attaching the sweeping system.

1. Park the vehicle on a level surface.

2. The brush system must be sitting on the changing carriage for removal/installation from/on the vehicle. Use a lift truck for removal/installation.

3. The corresponding > Sweep < program must be selected on the display.

The removal of the sweeping system is described with the optionally available changing carriage.

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Figure: Sweeping system with changing carriage

1. Holder for hydraulic hose couplings on the changing carriage
2. Lift truck
3. Hydraulic hose couplings on the vehicle
4. Side brush holder
5. Side brush

1. Stop the vehicle on level, solid ground and secure it against rolling away.

2. Move the changing carriage into position under the vehicle using the lift truck.

3. Move the side brushes individually into the side brush holder and lower into the correct position.

4. Depressurise the front hydraulics. See chapter "Depressurising the hydraulic system".

5. Pull off the hydraulic hoses, water connections and power supply connection and store them in the holder on the changing carriage.

6. Release the suction hose at the suction mouth (hose clip).

7. Open the locks (left and right). See chapter "Opening/closing the lock".

8. Extend the changing carriage with sweeping system with suction mouth.

9. Raise and secure the waste container.

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1. Lynch pin (lock)
2. Holder with suction hose
3. Water connections

10. Release the lock on the holder.

11. Release both water connections.

12. Pull out the holder with the attached suction hose upwards.

13. Store the sweeping system in a safe and dry place.

Attachment of the sweeping system is described using the optionally available changing carriage. The corresponding >Sweep< program must be selected on the display.

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1. Carrier connection
2. Screw
3. Eyebolt
4. Lock-nut

1. When installing the suction mouth for the first time, attach the suction nozzle to the sweeping system by attaching the carrier connection to the suction mouth (left/right) and adjusting it (102 ± 0.5mm).

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Figure: Sweeping system with changing carriage (shown without suction mouth)

1. Mounting arm
2. Vehicle to suction mouth carrier connection
3. Changing carriage

The sweeping system is attached to the vehicle in the reverse order to removal, which is why some of the illustrations are omitted here.

2. Stop the vehicle on level, solid ground and secure it against rolling away.

3. Select the appropriate > Sweep < program on the display.

4. Open the locks (left and right). See chapter "Opening/closing the lock".

5. Use a pallet truck to position the changing carriage carrying the sweeping system on it and suction mouth at the vehicle.

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1. Mounting arm
2. Holder on the vehicle

6. Move the fastening arms (left/right) into the mount provided on the vehicle as far as they will go. Check for correct seating before locking.

7. Close the lock (screw) to fix the attachment in place.

8. Raise and secure the waste container.

9. Route both water connections upwards.

10. Guide the holder with the attached suction hose down to the suction mouth and lock in place.

11. Fit the suction hose to the suction mouth (hose clip).

12. Depressurise the front hydraulics. See chapter "Depressurising the hydraulic system".

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1. Right hydraulic connections
2. Left hydraulic connections
3. Power supply
4. Water connections

13. Connect the hydraulic hoses, noting the connection colours of the hydraulic hoses.

14. Connect (plug in) water hoses.

15. Insert the plug of the brush system electrical connection into the power supply.

16. Individually raise and extend the side brushes.

17. Move the changing carriage out of the way.

18. Lower the waste container completely.

1. The existing lubrication points (grease nipples) are labelled.

   Lubricate daily with multi-purpose grease.

2. Check the sweeping brushes for tangled cords and straps and remove as necessary.

3. Keep the hydraulic connections clean and check for leaks once a week.

4. Check the sweeping brushes for wear and damage and replace if necessary.

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1. Adjust the sweeping area as shown in the illustration.

   Right: 9 am- 2 pm

   Right-hand side: 10 am- 3 pm

Adjusting the side inclination

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1. Screw 1
2. Screw 2

2. Unscrew the screws.

3. Adjust the side inclination via the rotation point of screw 1.

4. Tighten the screws.

Adjusting the head inclination forwards

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1. Lock nut
2. Hexagon head

5. Unscrew the counternut.

6. Adjusting the head inclination via the hexagon.

7. Tighten the counternut.

Adjusting the brush contact pressure

8. The brush system has a hydraulic brush contact pressure relief system.

1. Store the sweeping system that has been removed from the vehicle on the changing carriage.

2. Ensure that the sweeping brushes are not loaded during attachment to the vehicle.

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1. Front brush
2. Front brush arm
3. Side brushes (2-brush sweeping system)
4. Linear unit (carriage)

A changing carriage is required for removing/attaching the sweeping system.

1. Park the vehicle on a level surface.

2. The brush system must be sitting on the changing carriage for removal/installation from/on the vehicle. Use a lift truck for removal/installation.

3. The corresponding > Sweep < program must be selected on the display.

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1. Changing carriage 2.852-862.0
2. Short locking plate
3. Long locking plate
4. Retaining clip (2x)

1. Remove the 3-brush sweeping system with the optionally available changing carriage.

2. Stop the vehicle on level, solid ground and secure it against rolling away.

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1. 3-brush sweeping system
2. Changing carriage
3. MC 250
4. Lift truck

3. Move the changing carriage into position under the vehicle using the lift truck.

4. Move the side brushes individually into the side brush holder and lower into the correct position.

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1. Brush arm for front brush
2. Long locking plate
3. Retaining clip

5. Secure the brush arm for the front brush with a locking plate and retaining clip.

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1. Front brush
2. Short locking plate

6. Secure the front brush with a locking plate.

7. Depressurise the front hydraulics. See chapter "Depressurising the hydraulic system".

8. Pull off the hydraulic hoses, water connections and power supply connection and store them in the holder on the changing carriage.

9. Release the suction hose at the suction mouth (hose clip).

10. Open the locks (left and right). See chapter "Opening/closing the lock".

11. Extend the 3-brush sweeping system.

12. Raise and secure the waste container.

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1. Lynch pin (lock)
2. Holder with suction hose
3. Water connections

13. Release the lock on the holder.

14. Release both water connections.

15. Pull out the holder with the attached suction hose upwards.

16. Store the sweeping system in a safe and dry place.

1. Attach the sweeping system using the optionally available changing carriage. The corresponding >Sweep< program must be selected on the vehicle display.

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1. Carrier connection
2. Screw
3. Eyebolt
4. Lock-nut

2. When installing the suction mouth for the first time, attach the suction nozzle to the sweeping system by attaching the carrier connection to the suction mouth (left/right) and adjusting it (102 ± 0.5mm).

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1. Suction mouth
2. 3-brush sweeping system
3. Mounting arm
4. Changing carriage

3. Stop the vehicle on level, solid ground and secure it against rolling away.

4. Select the appropriate >Sweep< program on the vehicle display.

5. Open the locks (left and right). See chapter "Opening/closing the lock".

6. Use a pallet truck to position the changing carriage carrying the sweeping system on it and suction mouth at the vehicle.

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1. Mounting arm
2. Holder on the vehicle

7. Move the fastening arms (left/right) into the mount provided on the vehicle as far as they will go. Check for correct seating before locking.

8. Close the lock (screw) to fix the attachment in place.

9. Raise and secure the waste container.

10. Route both water connections upwards.

11. Guide the holder with the attached suction hose down to the suction mouth and lock in place.

12. Fit the suction hose to the suction mouth (hose clip).

13. Depressurise the front hydraulics. See chapter "Depressurising the hydraulic system".

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1. Right hydraulic connections
2. Left hydraulic connections
3. Power supply
4. Water connections

14. Connect the hydraulic hoses, noting the connection colours of the hydraulic hoses.

15. Connect (plug in) water hoses.

16. Insert the plug of the brush system electrical connection into the power supply.

17. Remove both locking plates on the front brush arm and front brush.

18. Individually raise and extend the side brushes.

19. Move the changing carriage out of the way.

20. Lower the waste container completely.

The front brush must be secured in the desired position when using the device as a weed brush.

Three positions are possible.

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1. Travel direction
2. Right position
3. Front position
4. Left position

1. Secure the desired working position with bolts and spring pins. See chapter Transport lock.

2. Press the Change of rotation direction button when working in the Left position.

The front brush must be secured when driving on public roads (transport journeys).

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1. Bolt
2. Spring pin

1. Move the front brush carriage all the way to the left.

2. Secure the front brush in the corresponding position using a pin and spring pin.

Further information can be found in the operating instructions for the vehicle.

Maintenance and care of the sweeping unit

1. Check the front brush and sweeping brush for tangled cords and straps and remove as necessary.

2. Keep the hydraulic connections clean and check for leaks once a week.

3. Check the front brush and sweeping brush for wear and tear and replace if necessary.

Maintenance and care of the bearings/linear unit

1. The existing lubrication points (grease nipples) are labelled.

   Lubricate daily with multi-purpose grease.

2. Clean the entire linear unit with water or brine. Cleaning with a high pressure cleaner is not a problem.

Maintenance and care of the chain

1. Inspect the chain at least once a month. During the inspection, clean the chain, tension the chain drive and lubricate it.

2. The chains can be cleaned with rags or brushes. Stubborn dirt can be loosened with petroleum or benzine. Apply new, suitable corrosion protection immediately after using grease-dissolving media.

3. The chain drive may only be tensioned by Kärcher Service.

4. Regular lubrication extends the service life. Lubricate the chain with relubricant VP8 FoodPlus Spay from IWIS.

   Note that the lubricant must get into the chain joint. This means that it has to get between the protective roller and the bushing, and also between the inner and outer plates to the pins and bushing

5. If you notice a lack of lubrication in the form of increased noise, stiff joints or fretting corrosion in the joints, we recommend the following procedure.

   Clean the chain with a very low viscosity oil. This flushes fretting corrosion, old lubricant and other dirt from the joint. When the chain has been cleaned, lubricate it with a suitable lubricant as described above.

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1. Adjust the sweeping area as shown in the illustration.

   Right: 9 am- 2 pm

   Right-hand side: 10 am- 3 pm

Adjusting the side inclination

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1. Screw 1
2. Screw 2

2. Unscrew the screws.

3. Adjust the side inclination via the rotation point of screw 1.

4. Tighten the screws.

Adjusting the head inclination forwards

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1. Lock nut
2. Hexagon

5. Unscrew the counternut.

6. Adjusting the head inclination via the hexagon.

7. Tighten the counternut.

Adjusting the brush contact pressure

8. The brush system has a hydraulic brush contact pressure adjustment system.

1. Store the sweeping system that has been removed from the vehicle on the changing carriage.

2. Ensure that the sweeping brushes are not loaded during attachment to the vehicle.

The following additional symbols and warning indicators may be shown on the display when sweeping.

	Suction mouth is down (lowered)
	Suction mouth camera activated
	Recycling water level low
	Waste container/platform cannot be operated
	Waste container is raised
	Intersection function active
	Warning, recycling water level too low - do not switch on the water circulation function (recycling water)
	Warning, the waste container is raised
	Warning, the waste container lid is open

The vehicle has an intersection function. This allows the broom system and the suction mouth to be raised and the rotation of the brushes and the water supply switched off at the push of a button. Everything can then be reactivated after this.

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1. Travel direction selector switch

1. Press the travel direction selector switch to the end position.

   1. The intersection function is activated and an indicator lights up in the display.

2. Press the travel direction selection switch again.

   1. The intersection function is deactivated and the indicator in the display goes out.

   2. The brushes turn again, the suction mouth is lowered and the water supply starts again.

   3. The cleaning work continues with the previously set values.

A sound proofing attachment kit is installed at the factory can be recognized by an additional label 99 dB (A) on the rear of the waste container.

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1. Label 99dB (A)

1. The sound proofing of 99 dB (A) is achieved when the engine speed is set to 1400 rpm.

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1. Left side panel
2. Filler neck with cover
3. Fresh water tank cap
4. Manual suction hose flap/overflow protection

   Note

   The open flap of the manual suction hose provides overflow protection when filling

1. Swing the left side panel outwards.

2. Remove the cover from the filler neck and attach a suitable water supply hose.

3. Unscrew the fresh water tank cap.

4. - Open the manual suction hose flap

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1. Filler neck with cover
2. Switchover valve position for filling the recycling water tank
3. Switchover valve position for filling the fresh water tank

5. Select the position of the switchover valve accordingly. Fill the fresh water tank or recycling water tank.

   1. Maximum fresh water tank filling quantity: 190 litres

   2. Maximum recycling water tank filling quantity: 445 litres

6. Fit the cover again after filling.

• Working with fresh water

The dosing buttons for the spray water are located next to the steering wheel.

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1. Fresh water pump switch
2. Left side brush spray water dosage knob
3. Right side brush spray water dosage knob
4. Suction mouth spray water dosage knob

1. Switch on the fresh water pump at the switch on the arm rest control panel.

2. Turn the corresponding dosing buttons to adjust the water quantity.

   More water quantity: Turn anti-clockwise.

   Less water quantity: Turn clockwise.

• Working with recycling water

  ---

  

  1. Recycling water pump switch
  2. Save button
  3. Rotary knob

  1. Switch on the recycling water pump at the switch on the control panel on the arm rest. Hold pressed for at least 2 seconds.

  2. Use the rotary knob on the control panel to set the required water quantity according to the amount of sweeping waste (see following diagram).

     Note: The water quantity must always be adapted to the level of soiling. Excessive amounts of water lead to a leak in the device exhaust air and can impair the machine environment

  3. Confirm by pressing the save button.

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1. Set engine speed of the vehicle
2. Output in%

   • The output in% is shown as a bar on the display.

3. Output in litres / min

In the recycling operation, the filled water is circulated in the waste water tank/waste container.

This is conveyed to the suction mouth via a centrifugal pump.

This recycling water is immediately sucked into the suction mouth, cleaned by the side filters and returned to the waste water tank/waste container via the valve.

The operation or the assignment of the control console can be found in the chapters of the 2-brush sweeping system or 3-brush sweeping system.

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1. Brush contact pressure pedal

Briefly press the pedal: Full brush pressure and increased brush speed for heavy soiling.

Hold the pedal pressed: Suction mouth remains lowered when reversing, vacuumed substances are also taken up when reversing.

Check the filling level of the waste container from time to time.

• With normal waste, empty the waste container when the container is almost full, at the latest when the suction performance decreases and dirt remains.

• In the case of heavy waste, a display can light up that indicates a full waste container (weight measurement) even though the waste container is not full.

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1. Waste container cover
2. Handles
3. Climbing aid, foldable

1. Lift the waste container until the waste container lid has opened.

2. Use the climbing aid and handles to check the filling level.

Flush the suction system with water daily after finishing work.

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Figure: Cleaning the suction mouth and suction system

1. Park the vehicle.

2. Switch on the working hydraulics.

3. Switch on ECO mode.

4. Select an engine speed of 1550 rpm.

5. Raise the side brushes.

6. Place the water jet in the area of the suction mouth for approx. 3 minutes. The suction mouth and suction system are rinsed and cleaned.

7. The waste water collects in the waste container. Drain the waste water if necessary. See chapter “Draining waste water / recycling water”.

Drain the waste water or recycling water only in a suitable area.

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1. Drain recycling water switch
2. Lock

1. Park the vehicle in a suitable area for emptying.

2. Switch on the vehicle.

3. Use the "Drain recycling water" switch. For this, press the lock and operate the switch. The recycling water valve opens.

   1. The switch is located on the side panel.

4. Drain off waste water or recycling water.

   1. Leave the recycling water valve open during longer standstill periods.

5. Engage the lock to avoid unintentional activation of the switch (when entering/exiting).

Clean the recycling system with water every day after finishing work.

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1. Driver cabin
2. Water connection (GEKA)

1. Find a suitable parking position and park the vehicle.

2. Switch off the sweeping system.

3. Open the recycling water tank and drain the water in the tank.

4. Raise the waste container for better access.

5. Attach the water hose to the water connection and connect to the house water connection.

6. Turn on the water.

   1. System is flushed in both directions in parallel.

   2. Recommended flushing time is 5-10 minutes.

   3. The system cleaning is finished when clear water emerges from the suction mouth and the recycling water tank at the drain outlet.

7. Note: To avoid malfunctions, the water connection (GEKA) must not be closed. 

The fan cleaning attachment kit (2.852-587.0) can be used for cleaning, if installed.

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1. Fan cleaning connection

1. Remove the blind cover of the C-coupling at the fan cleaning connection.

2. Connect a water hose and connect it to the domestic water supply. An adapter from GEKA to C-coupling is required for this (not included in the scope of delivery).

3. Preselect a motor speed of 1400 rpm.

4. Switch on the PTO and blower (ideally with the waste container closed).

5. Open the water inlet.

6. Operate the blower and until the desired result (approx. 3-5 minutes) is achieved.

7. Reattach the blind cover.

Clean the suction mouth and the suction system first before cleaning the waste container. See chapter “Cleaning the suction mouth and suction system”.

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1. Interior of waste container
2. Side channels
3. Rod engaged
4. Blower flap
5. Retaining clip
6. Exhaust grille

1. Park the vehicle.

2. Raise the waste container into the emptying position.

3. Rinse the inside of the sweep container and the side channels with water.

4. If necessary, rinse the exhaust grille with water by pulling out the retaining clips on the left and right and pivoting the blow-out grille down.

5. Rinse the outside of the blower flap with water, first open the blower flap with the rod (the rod engages).

The vehicle with the waste container can be cleaned with a high-pressure cleaner.

• Clean critical areas such as bearings, tyres, etc. with reduced pressure and without a rotary nozzle.

• Do not clean areas with electrical components with the high-pressure cleaner.

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Figure: Cleaning the vehicle

• Front power lift 2.852-755.0

This chapter describes the attachment and removal of a front power lift on an MC 250.

Various different attachments can be attached to the front power lift using a 3-point mounting.

The attachment kit may only be used as intended.

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1. Changing carriage 2.852-067.0
2. Front power lift
3. Front power lift mounting
4. Hydraulic hose couplings (2x)

1. We recommend using a changing carriage 2.852-067.0 when attaching to the vehicle.

2. When attaching the front power lift for the first time (approx. 110 kg), use a crane or similar to position it on the changing carriage.

3. Stop the vehicle on level, solid ground and secure it against rolling away.

4. Open the lock, see chapter “Opening/closing the lock”.

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1. Lift truck
2. Front power lift
3. Vehicle mounting frame

5. Position the changing carriage with front power lift with the lift truck in the middle in front of the vehicle, then insert it into the vehicle mounting frame as far as it will go.

6. The front power lift mountings must engage in the left and right attachment points of the vehicle.

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1. Vehicle attachment point
2. Front power lift
3. Lock
4. Lock screw and lock nut

7. Tighten the lock on both sides with screws and secure with a lock nut.

   1. An open ring spanner is required to counter the nut

   2. See also chapter "Opening/closing the lock"

8. Lower and retract the lift truck.

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1. Hydraulic connections
2. Front power lift

9. Secure the power lift against uncontrolled lowering while it is being coupled hydraulically. Caution: There is a risk of injury from the uncontrolled lowering of the power lift.

10. Depressurise the front hydraulic system (pressure relief).

    1. See chapter “Depressurising the hydraulic system” in the operating instructions for the vehicle.

11. Connect the hydraulic hoses to the couplings (note the colours).

12. Select "Implements" in the “Attachments/Implements” menu in the vehicle display.

    1. Refer to the chapter "Display" in the operating instructions of the vehicle.

13. Deactivate pressure relief.

14. The front power lift is operated using the left joystick on the vehicle.

    1. Left joystick forwards - front power lift lowers.

    2. Left joystick back - front power lift raises.

1. Raise the front power lift.

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1. Changing carriage mounting
2. Front power lift frame

2. Use a lift truck to move the changing carriage under the front power lift.

   1. Raise the lift truck.

   2. Make sure that the frame of the front power lift is securely seated in the mounting of the removable frame.

3. Depressurise the front hydraulic system (pressure relief).

4. Release the hydraulic hoses.

   1. Fasten the hydraulic hoses to the front power lift with cable ties.

5. Open the lock on both sides of the vehicle, see chapter “Opening/closing the lock”.

6. Use a lift truck to move the front power lift out of the vehicle mounting frame.

7. Set down the front power lift in a safe place.

Possible attachments on the attachment frame: Spreader, water drum or the grass / leaf vacuum container on a mower / vacuum combination.

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1. Attachment frame
2. Insert for supports (2x left and 2x right)
3. Locking button (4x)
4. Counternut
5. Retaining clip (2x)
6. Locking rod (2x)
7. Ball socket (4x)

1. All 4 locking buttons must first be attached, adjusted and secured with the counternuts.

   1. The locking buttons 6.321-295.0 are part of the "Attachment frame" attachment kit

   2. Screw the locking button into the thread of the welded nut on the frame and adjust it.

   3. If the setting is correct, the bolt of the pulled locking button releases the slot for the supports.

   4. Secure with counternut.

2. Attach the attachment frame to the vehicle.

   1. Remove the retaining clip and pull the locking rods out of the attachment frame.

   2. Lower the attachment frame onto the vehicle using a crane (if available) until the attachment frame sits securely in place in the 4 ball sockets. Use the assistance of a second person if necessary.

   3. Push in the locking rods.

   4. Secure with the retaining clip.

3. The corresponding attachment can be positioned and fastened on the attachment frame once this is securely attached to the vehicle and secured, see the operating instructions for the attachment.

4. The attachment frame with the attachment can only be removed using the "Supports" attachment kit. A detailed description is provided in the chapter "Removing the waste container".

The high-pressure cleaner attachment kit is included in the scope of delivery and already installed in the vehicle when ordered ex-factory.

This chapter describes operation and care.

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1. High-pressure cleaner
2. High-pressure hose reel
3. Nozzle holder
4. Fastening trigger gun
5. Waste container flap

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1. Oil level sight glass
2. Oil drain plug
3. Water filter
4. Water connection

With a built-in additional water tank the attachment differs slightly:

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1. Additional water tank
2. Hose hook (rotatable)
3. High-pressure hose holder
4. High-pressure hose
5. Spray unit (high-pressure gun with spray lance)
6. Spray unit holder
7. High-pressure hose hose coupling

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The position of the high pressure cleaner in the unit. The hose reel for the high-pressure hose is omitted with this equipment variant.

Note

To remove the additional water tank, follow the instructions in the chapter "Additional water tank attachment (ex-factory)" in these instructions.

Before removing the additional water tank, loosen the hose coupling to the high-pressure hose and remove the hose from the holder

Removing the high-pressure hose from the holder

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1. Open the high-pressure hose holder

2. Turn the hose hook to open

3. Open the spray unit holder.

4. Remove the spray unit and the high-pressure hose from the holder.

Note

After work, first roll up the high-pressure hose onto the holder and then hang the spray unit in the holder. Rolling up is easier if the upper hose hooks are turned upwards beforehand.

Do not overtighten the high-pressure hose holder.

The following symbols and warning indicators are shown on the display when operating with the high-pressure cleaner.

	High-pressure cleaner is activated
	High-pressure cleaner inactive

Use the high-pressure cleaner only for the following activities:

• Cleaning with the high-pressure jet without detergent (e.g. façades, park seats, garden paths).

• Only operate the high-pressure cleaner with the flat jet nozzle provided.

• This high-pressure cleaner is intended and tested for the exclusive use with the sweeper vacuum MC 250.

When the water quantity is reduced via the pressure/quantity control on the trigger gun, the overflow valve opens and part of the water flows back to the suction side of the pump.

The safety valve opens when the permissible operating pressure is exceeded and the water flows back to the suction side of the pump.

If you have not already done so:

1. Connect the high-pressure hose and spray lance.

2. Connect the water supply hose and open the stop cock of the water inlet.

1. Check the water level and, if necessary, fill the fresh water tank of the MC 250.

2. Open the stop cock of the water inlet.

3. Put travel direction lever in the NEUTRAL position - centre position and start the motor.

4. Remove the trigger gun and high-pressure hose from storage.

5. Switch on the PTO work hydraulics.

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1. Pressure washer on / off F1 button
2. High-pressure cleaner active / inactive display

6. Deactivate the seat contact switch (F4 button on the display).

7. Switch on the high-pressure cleaner in the display with the F1 button.

   The engine speed increases automatically.

   High-pressure active (orange) appears in the display.

8. Unlock the trigger gun.

9. Pull the trigger on the trigger gun and commence cleaning.

Note

The high-pressure cleaner must be vented when first used or when the water reservoir is empty:

10. Operate the high-pressure cleaner without the nozzle until there is no more air in the system.

1. Close the trigger gun.

2. Switch off the high-pressure cleaner in the display with the F1 button.

3. Switch off the work hydraulics.

4. Actuate the trigger gun until the device is depressurised.

5. Actuate the safety lever of the trigger gun to prevent the gun trigger from being unintentionally triggered.

6. Fasten and secure the trigger gun with spray lance and high-pressure hose in storage.

1. Check all hydraulic hoses and connections for leaks.

2. Check the high-pressure hose for damage (danger of bursting).

   <steptroubleshooting>

   Immediately replace a damaged high-pressure hose.

   
   
   </steptroubleshooting>

3. Check the device (pump) for leaks.

   <steptroubleshooting>

   3 drops of water per minute are permissible and can leak out of the bottom of the appliance. Contact Customer Service in the case of more serious leaks.

   
   
   </steptroubleshooting>

1. Read the oil level when the device is on a flat surface.

   1. The oil level must be in the middle of the sight glass.

   2. Contact Customer Service immediately if the oil is milky (water in oil).

2. Clean the water filter.

   1. Depressurise the device.

   2. Unscrew the filter casing.

   3. Clean the filter with clean water or compressed air.

1. Changing oil.

   1. See the chapter "High-pressure cleaner technical data" for the oil volume and type.

   2. Have the oil changed by Customer Service.

1. Store the device in a frost-protected place.

Note

If frost-free storage is not possible:

2. Close off the water inlet.

3. Allow the device for run for a maximum of 1 minute until the pump and lines are empty.

4. Blow the high-pressure pump, supply hose, water filter and high-pressure hose out with compressed air.

• Pressure washer does not run 

• High-pressure cleaner not reaching the required pressure 

• Pump leakingUp to 3 drops of water per minute are permissible. 

• Pump knocking 

Remedy:

• Switch on the work hydraulics (PTO).

Remedy:

• Activate the high-pressure cleaner attachment kit (display F1).

Remedy:

• Fill the fresh water tank.

Remedy:

• Clean the water filter, check water supply.

Remedy:

• Check/replace the high-pressure nozzle.

Remedy:

• In case of more serious leaks, have the device checked by Customer Service.

Remedy:

• Check the water supply line for leaks.

• Vent the device, see section "Venting the device".

• Contact Customer Service if necessary.

We hereby declare die technical documents according to EC Directive 2006/42/EC (+2009/127/EC) Annex VII Part B have been created for the incomplete machine described below and that this conforms to the following points of the directive:

Annex I Points 1.1, 1.2, 1.3, 1.4, 1.5, 1.6 and 1.7. I Point 1.1,

This declaration is invalidated by any changes made to the incomplete machine that are not approved by us.

Authorities can request the relevant documentation for the incomplete machine from the documentation supervisor. Documents are provided via email.

Before commissioning or installation of the incomplete machine, it must be ensured that the complete machine into which the incomplete machine is installed conforms to the EC Machinery Directive 2006/42/EC (+2009/127/EC).

Please refer to the EC Declaration of Conformity for the machine for more information on this.

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, 2019/11/01

The central lubrication attachment is part of the scope of delivery when ordered ex-factory.

The central lubrication system is ready for operation on delivery and all settings (lubrication duration and interval) are adapted and set to the delivered vehicle. Intervention by the operator is not necessary.

The lubrication work according to the maintenance schedule (see chapter "Care and maintenance of the vehicle and attachments") is not required due to the central lubrication system.

The central lubrication system has a lubricant tank that must be filled by the operator.

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The pump unit and the lubricant tank of the central lubrication system are installed in the rear of the vehicle and are accessible via the rear cover of the left or right side of the vehicle (depending on whether an additional water tank attachment kit is installed).

Overview of the unit

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1. Filling nipple

2. Filling level marking "Min"

3. Filling level marking "Max"

Control unit

Note

The control unit is located under a cover with a sight glass. Settings may only be made by the authorised service.

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1. Lubrication time

2. Cycle time

3. Indicator light green

4. Indicator light red

5. Diagnostic and service interface.

Vehicle is parked, ignition switched on.

Activities

1. Fill lubricant tank

   1. Check the filling level of the lubricant tank.

   2. Connect grease gun or filling pump to the filling nipple.

   3. Fill the lubricant tank.

      Note

      Observe the "Max" marking on the lubricant tank. Do not overfill the tank.

2. Removing attachment

If an attachment (for example the brush system) is removed, the return line of the central lubrication system must be plugged into the connection of the lubricant line so that the lubricant circuit remains closed (bypass).

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Operating status WITH attachment

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Operating status WITHOUT attachment

1. Return line of the central lubrication system

2. Central lubrication system lubricant line

3. Storage (plug coupling) of the return line

4. Lubrication line attachment

<dlhead>
<dthd>Creating a bypass

</dthd>


</dlhead>
1. Remove the lubricant line of the implement from the connection and close it with the protective cap.
2. Remove the return line from storage and close the coupling with the protective cap.
3. Reconnect the return line to the lubricant line of the central lubrication system.

Note

The attachment can now be removed.

3. Removing the waste container

Before removing the waste container, the connections of the central lubrication system must be disconnected.

• The lines to the lubrication points on the vehicle's water tank are firmly connected and must be disconnected at the point shown using a suitable tool.

  Note

  Before disconnecting, place a cloth underneath and wipe up any grease that may escape.

  ---

  

• Disconnect the lubricant lines and the electrical connection.

  ---

  

• The waste container can now be removed.

4. Visual inspection of the lubrication points

   Regularly check all connections and lubrication points for leaks.

There are two indicator lights (red and green) on the control unit which indicate the current operating status of the central lubrication system via blink codes.

Normal operation

Display	Meaning
	After switching on the ignition: The system is ready for operation.
	Lubrication is in progress. Display throughout the duration of lubrication, then ready display.

Fault displays

Fault display	Malfunction	Removal
	Lubricant tank empty.	Fill up the container, the display disappears.
	Leakage in the system	Check connections, lines and lubrication points for leaks. If the error is not found, contact the service department.

The additional water tank attachment is part of the scope of delivery when ordered ex-factory.

The additional water tank is located at the rear of the vehicle.

The additional water tank can be removed from the vehicle without tools for servicing.

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---

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1. Fresh water tank of the vehicle
2. Connection hose
3. Ball tap
4. Quick coupling
5. Additional water tank
6. Quick-release catches
7. Handle
8. Water hose connection/filling system

Vehicle is parked and not in use, the parking brake is applied.

Filling the additional water tank

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1. Reservoir cover
2. Hose connection protective cover
3. Hose connection/filling system

1. Remove the reservoir cover.

2. Remove the hose connection protective cover.

3. Connect up the water hose.

4. Fill tank.

   Note

   Before filling, check that the ball tap (see below) is closed. Check the water level regularly during filling to avoid overflowing. The additional water tank has no filling level display or automatic water supply cut-off.

5. Refit the reservoir cover and protective cover.

Functional principle of the additional water tank

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1. Water level in the vehicle's fresh water tank drops to a lower level.
2. The ball tap is opened.
3. Fresh water flows from the additional water tank into the fresh water tank, work can continue.

Working with the additional water tank

Note

The ball tap may only be opened when the fresh water tank of the vehicle is empty.

6. Stop the vehicle if the fresh water tank is empty (notification via the vehicle interface).

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7. Open the vehicle cover at the rear left.

8. Open the ball tap.

9. Fresh water tank is being filled.

   When the ball tap is open, sweeping can be continued with the vehicle

Removing the additional water tank

The additional water tank can be removed from the appliance for servicing or cleaning.

Note

The additional water tank must be completely empty for removal!

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1. Quick-release catches
2. Handle

10. Open the rear vehicle cover.

11. Disconnect the connection hose at the quick coupling.

12. Open the quick-release catches on both sides of the tank.

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13. Pull the tank out of the vehicle to the rear.

The manual suction hose is included in the scope of delivery when ordered ex-factory.

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1. Manual suction hose
2. Manual suction pipe
3. Clamp lock belt
4. Locking wedge
5. Lynch pin
6. Locking hook

• Removing the attachment from the vehicle

  The attachment can be easily removed if not required.

  To remove, pull out the lynch pin and open both locking wedges. Then remove the attachment with 2 people.

• Pivoting the attachment to the side

  The attachment must be pivoted completely outwards in order to empty the waste container.

  To do this, open both locking wedges and pivot the attachment all the way out to the side wall, where it is held by a magnet. Push the locking hook upwards before pivoting back.

The vehicle is parked and the travel direction selector switch is in the NEUTRAL position (middle position).

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1. Bottom rubber flaps position

   Note

   Working with the manual suction hose

2. Air intake opening

1. Lift the waste container until the rubber flaps can be folded down.

2. Fold the rubber flap down over the suction opening.

3. Lower the waste container again.

4. Open the clamp lock belt and remove the manual suction hose with the manual suction pipe from the storage compartment.

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1. Flap
2. Connection for water hose
3. Manual suction hose connection

5. Open the flap on the desired side.

6. Insert the manual suction hose into the connection opening and turn it (bayonet).

7. Plug in the water hose if necessary.

8. Switch on the work hydraulics (PTO).

9. Switch on the blower via the switch (control console).

10. Deactivate the seat contact switch (F4 button on the display).

11. Work with the manual suction hose.

12. After finishing work:

    1. Switch off the work hydraulics.

    2. Activate the safety contact switch.

13. Place the suction hose with the suction pipe in the storage compartment and secure with the clamp lock belt.

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1. Top rubber flaps position

   Note

   Normal sweeping

2. Air intake opening

14. Lift the waste container and fold up the rubber flaps.

15. Lower the waste container.