Before installation, please read these installation instructions and the safety instructions, as well as the machine’s operating instructions and safety instructions. Please follow these instructions.

Please keep the assembly instructions, operating instructions and safety instructions for future reference or for any future owners.

Installation, servicing and maintenance work must only be carried out by suitably qualified and specially trained technical staff.

The MCM NG (Machine Connect Module Next Generation) can be used to transfer data to and from the machine

• for remote diagnosis

• for remote maintenance

• about their use

Data can be transferred via mobile phone networks or Wi-Fi.

The customer can object to the data transfer.

These installation instructions describe the installation and initial startup of the MCM NG in various machines.

These installation instructions apply to the attachment kit:

• 2.644-592.0

* Operating status

1. Place the machine on a level, horizontal surface.

2. Disconnect the machine from the power supply:

   1. Switch off the machine.

   2. Unplug the charger mains plug from the mains socket.

   3. Disconnect the battery connector.

      Or:

   4. Remove the battery terminal from the negative terminal of the battery; see the service manual.

1. To release the control panel:

   1. Unscrew the screws.

   2. Lift the control panel and carefully set it aside, keeping the electrical cables connected.

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   1. Control panel
   2. Screw (6 pieces)

1. To release the control panel:

   1. Unscrew the screws.

   2. Lift the control panel and carefully set it aside, keeping the electrical cables connected.

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   1. Screw (4 pieces)
   2. Control panel

1. Remove the rubber mat.

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   Shown: B 50 W

   1. Rubber mat

2. Unscrew the screws.

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   1. Screw (4 pieces)
   2. Control panel

3. Lift the control panel and, with the electrical cables connected, carefully position it vertically.

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   1. Control panel

1. Loosen the cover:

   1. Unscrew the screws.

   2. Carefully remove the cover if electrical cables are connected.

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   1. Screw (4 pieces)
   2. Bar cover

2. Remove the retaining plate.

   1. Unscrew the screws.

   2. Remove the retaining plate.

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   1. Screw (3 pieces)
   2. Retaining plate
   3. Bar cover

3. Prepare the retaining plate

   1. Unscrew the screws.

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   1. Retaining plate
   2. Screw (2 pieces)

Remove the rear cover

1. Remove the rear cover:

   1. Pull out the water control knob.

   2. Unscrew the screws.

   3. Carefully fold the rear cover down.

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   Shown: BD 50/55 C

   1. Screw (8 pieces)
   2. Rear cover
   3. Water control knob

Releasing the control panel

2. Unscrew the bolts on the left and right sides of the machine.

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   1. Control panel
   2. Screw (4 pieces)

3. Lift the control panel and, with the electrical cables still connected, carefully tilt it forwards.

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   1. Control panel

1. If necessary: Remove an existing module along with the retaining plate.

   Reuse the retaining plate and the screws.

   Otherwise, use a new retaining plate (5.039-431.0) and 2 new screws (7.303-108.0).

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   1. Retaining plate
   2. Existing module

2. Attach the MCM NG to the mounting plate using three M4x12 screws.

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   1. Existing patch cable
   2. double socket
   3. Resistance
   4. Short patch cable
   5. Retaining plate
   6. MCM NG

3. Attach the retaining plate to the machine using two 5x20 screws.

4. Fitting the short patch cable:

   1. Unplug the patch cable from an existing module at the dual socket and slide it to the side.

      Or:

   2. Disconnect the resistor from the twin socket.

      The resistance is omitted.

   3. Plug the short patch cable into the RJ45 socket on the MCM NG and into the dual socket.

   Note

   Do not attach the control panel to the machine until after initial startup, so that you can check the status of LED-1 and LED-2.

1. Screw the MCM NG into the mounting bracket beneath the control panel using an M4x12 screw.

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   1. Control panel
   2. Short patch cable
   3. M4x12 screw
   4. MCM NG
   5. double socket

2. Plug the short patch cable into the RJ45 socket on the MCM NG and into the dual socket.

   Note

   Do not attach the control panel to the machine until after initial startup, so that you can check the status of LED-1 and LED-2.

1. If necessary: Remove an existing module.

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   1. Existing module
   2. Resistance
   3. double socket
   4. patch cable

2. Plug the short patch cable into the dual socket:

   1. Unplug the patch cable from an existing module at the dual socket.

      Or:

   2. Disconnect the resistor from the twin socket.

      The resistance is omitted.

   3. Plug the short patch cable into the dual socket.

3. Plug the short patch cable into the RJ45 socket on the MCM NG.

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   1. MCM NG
   2. holding claws
   3. M4x12 screw
   4. double socket
   5. Short patch cable
   6. Control panel

4. Position all electrical cables and Plugs on the control panel and slide the MCM NG under the retaining clips.

5. Mount the MCM NG to the control panel using an M4x12 screw.

6. Place the control panel on the machine.

   Note

   Do not attach the control panel to the machine until after initial startup, so that you can check the status of LED-1 and LED-2.

1. If necessary: Remove an existing module with the retaining plate.

   Reuse the retaining plate and the screws.

   Otherwise, use a new retaining plate (9.722-938.0) and 2 new screws (7.303-108.0).

   1. Slide the MCM NG onto the retaining plate.

   2. Mount the MCM NG onto the retaining plate using 2 screws (M4x12).

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   1. MCM_NG
   2. Screws (M4x12)
   3. Retaining plate

2. Mount the retaining plate with the MCM NG onto the cover using 3 screws (M4x12).

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   1. Bar cover
   2. Retaining plate with MCM NG
   3. Patch cable
   4. Screw M4x12

3. Plug the patch cable into the RJ45 socket of the MCM NG.

4. Mount the cover onto the machine using 4 screws (M5x20).

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   1. Screw M5X20
   2. Bar cover

   Note

   Only attach the cover to the machine after initial startup in order to be able to check the status of LED-1 and LED-2.

1. If necessary: Remove an existing module.

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   1. Existing module

2. Plug the long patch cable into the RJ45 socket on the MCM NG.

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   1. MCM NG
   2. Module mount
   3. Long patch cable

3. Feed the long patch cable down through the module socket.

   Note

   Do not insert the MCM NG into the module socket until after initial startup, so that you can check the status of LED-1 and LED-2.

4. Plug the long patch cable into the dual socket:

   1. If necessary: Unplug the patch cable from an existing module at the dual socket.

      Or:

   2. Disconnect the resistor from the twin socket.

      The resistance is omitted.

   3. Plug the long patch cable into the double socket.

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   1. Long patch cable
   2. Resistance
   3. double socket

   Note

   Do not attach the control panel and the rear cover to the machine until after initial startup.

1. Connect the machine to the power supply:

   1. Connect the two halves of the battery connector.

      Or:

   2. Fit the battery terminal to the negative terminal of the battery; see the service manual.

1. ATTENTION

   Risk of damage due to overvoltage when working with the Charger connected.

   Damage to electronic components

   Unplug the Charger from the Mains socket before working on the machine.

   Unplug the charger mains plug from the mains socket.

2. Switch on the machine.

3. Wait for the MCM NG to initialise (this may take up to 90 seconds).

   LED 1 is lit up red, see LED status.

   The MCM NG is integrated into the machine software.

4. Start the KÄRCHER Diag.

5. Enter the Wi-Fi password when prompted; see the sticker for the Wi-Fi password.

   The KÄRCHER Diag connects to the MCM NG via Wi-Fi.

6. Check whether the MCM NG has been fully integrated into the machine software:

   1. LED-1 and LED-2 must indicate the operating status; see LED status.

   2. The material and serial numbers of the MCM NG must be displayed under “MCM NG Settings”.

   3. The MCM NG must be shown as “connected”.

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   Note

   If initial startup fails:

   1. Exit the KÄRCHER Diag.

   2. Switch off the machine.

   3. Restart the MCM NG.

7. If required, and provided the customer has requested it: assign the machine to the customer’s account on the KCC Support Portal.

1. Stick the Wi-Fi password sticker near the machine's rating plate.

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   Shown: B 50 W

   1. Wi-Fi password sticker

1. Refit or reinstall the parts that were loosened or removed to expose the installation space in the reverse order; see Preparatory work.