Control and operation

The access and the outfit of the cab

Front working lights and attachment headlights

Push the button.

Front working lights on the uppercarriage are activated.

First LED in the button comes on.

Push the button again.

Front working lights and attachment headlights are activated.

First LED and second LED in the button are on.

Push the button a third time.

Front working lights are deactivated.

First LED in the button goes off.

Attachment headlights remain activated.

Second LED in the button is still on.

Push the button a fourth time.

Attachment headlights are deactivated.

Second LED in the button goes off.

Rear working lights

Push the button.

Rear top of cab working lights are activated.

First LED in the button comes on.

Push the button again.

Rear counterweight working lights are activated.

First LED and second LED in the button are on.

Push the button a third time.

Rear top of cab working lights are deactivated.

First LED in the button goes off.

Push the button a fourth time.

Rear counterweight working lights are deactivated. Second LED in the button goes off.

The access and the outfit of the cab

Rear working lights on the top of the cab (if installed)

Switch the lights to on from the cab

S126 Cab push-button / rear working lights / top of cab

Depending on the machines, the cab control board can be different. Inside the cab, press button S126 located on the control board.

Control and operation

The access and the outfit of the cab

Switch the lights to on from outside

Operating Manual

E1022

S127 External push-button / rear working lights / top of cab

Depending on the excavators and the access ladder configuration, the control box E1022 can be in different locations.

From the outside, press button S127 located on the control box E1022.

3.2.9Heating/air-conditioning system

Overview

The cab has a heating / air-conditioning system as standard. The heating / air-conditioning system is used to heat, cool and ventilate the cab.

Control buttons

2 - Increase cab temperature

Main screen displays on flap (2 (17)) OPEN / SHUT ilation flap CENTRE / SHUT ilation flap CENTRE / OPEN ventilation flap CENTRE

If the control unit identifies an error, a flashing error number F1 – F5 will be displayed.

Note!

In the event of an error occurring, please consult with the Liebherr customer service.

Switching on the control unit

Fig.

Switching on the control unit

Switch on the unit using button 4.

The software version will be displayed for approximately 12 seconds while the control unit carries out an automatic check.

The heating and air-conditioning in the cab is operating. Heating performance and fan speed will be controlled automatically if the AUTO (20) symbol is activated.

Setting the desired cab temperature

Setting the desired cab temperature

The four figure segment display 25 displays the desired cab temperature. Use the button 2 to increase the temperature. Use the button 3 to reduce the temperature.

The temperature set will remain stored until the next change is made. Switch on Air conditioning to cool the cab.

Press button 7 to set the heating manually. The heating symbol will flash for 5 seconds. While the heating symbol is flashing, use button 2 or 3 to increase or reduce the heating manually.

Press button 7 to switch to automatic again.

Air-conditioning

Fig. 3-49 Air-conditioning

Switch on the air-conditioning using button 1 The symbol 15 will be activated. The compressor will now be switched on by the control unit if required and

To dehumidify the cab, switch on the air-conditioning system when heating the cab.

Press the REHEAT button 6 Symbol 14 is activated.

In this case, switch on the air-conditioning unit until the windows are no longer fogged.

After 10 minutes, the REHEAT function switches off automatically.

Recirculated air and fresh air

Fig. 3-50 Recirculated air and fresh air

The heating and air-conditioning unit can be switched to recirculated or fresh air. Press button 8 to open / close the fresh air flap. Symbol 13 indicates that the fresh air flap is closed.

Press button 5 to set the fan speed manually. The fan symbol will flash for 5 seconds.

While the fan symbol is flashing, use button 2 or 3 (see Fig. 3-48) to increase or reduce the fan speed manually.

Press button 5 to reset the automatic function.

Adjustment of the air flow

3-51 Position of front air vents and vents on the rear cab wall

The air vents are located on the seat console 3 (19), on the right control panel 2 (17), on the front window 4 (18) and on the cab rear wall 1 (16). The area that is open on each ventilation flap is indicated with an arrow in the display.

To obtain optimal comfort:

When heating, open the air vents in the footwell 3 and possibly in the windscreen 4

When air-conditioning, open the air vents in the cab rear wall 1 and the right control panel 2

The best heating or cooling effect is achieved when using the recirculated air function.