Control and operation

Operating and control elements

Note!

The standard denomination of the options are "Option 1", "Option 2"... Liebherr or its customer department can assign a more concrete name to each option, for example "HM2000" or "Grapple", ...

Menu "Info Hours" - operating hours of machine components

In this menu the screens 1/4 to 3/4 provide an overview of the operating hours of specific components, of duration of processes and operating types.

3-15 Menu "Info Hours" - operating hours of Diesel engine

The screen 1/4 indicates the operating hours for:

Stment In Manual Control

Press the Menu key. the screen 2 is displayed. The screen 2 provides the operating hours for:

Menu "Info Hours" - duration of the various movements

Press the Menu key again. the screen 3 is displayed. The screen 3 provides the operating hours for: ent (operated via the foot pedals)

Press the Menu key again. the screen 4 is displayed.

Fig. 3-17 Menu "Info Hours" General Data

The menu General Data, provides information on: e-Versions for, respectively, the monitoring display, the control unit BBT, the pump regulator BST, and, on the second line, the SPF nb. (specification number) of the engine regulator unit and the engine type. ine with pump line nozzle injection system actually), actually), actually),

Press the Menu key again. The screen 1/4 is displayed.

To exit the menu: Press the Back key. The sub-menu will be aborted.

Menu "Info In/Outputs"- Status of hydraulic pumps and of electrical inputs and outputs

The screens 1 to 3 provide information on the regulation parameters for the hydraulic pumps.

Fig. 3-18 Menu "Info In/Outputs"- flow and pressure limitations

The screen 1/8 displays active flow limitation option and which percentage of the maximum flow is set (solenoid valves EV1 and EV2). essure limitation for the hydraulic system and which percentage of the maximum pressure is set (solenoid valve EV6).

regulation solenoid valves..

On the left picture, an external limitation (Hardware input I1, option 2) is activated. The currents supplying the flow limitation solenoid valves limit these flows to 55% of their maximal values. The current supplying the pressure limitation solenoid valve limits the pressure to 80% of its maximal value.

On the right picture, an internal limitation (Pressure increase ) and an internal limitation (Hardware input I1, option 1) are activated at the same time.

Due to the internal limitation, the flow of the pump P1 is limited to 50% of its maximum value via the solenoid valve EV1.

Due to the external limitation, the flow of the pump P2 is limited to 70% of its maximum value via the solenoid valve EV2 and the pressure in the hydraulic system to 60% of its maximal value via the solenoid valve EV6.

When several limitations are activated at the same time, only the one with the smallest percentage value is decisive for each regulating solenoid valve.

Note!

An external limitation is activated as soon as the option pedals are actuated. The three internal limitations which are the most currently used are the followings: is activated when travelling.

(button S56 on the control unit).

machines with shovel attachment.

Press the Menu key again. The screen 2 is displayed.

The screen 2 shows the instantaneous LR current (current flowing to the solenoid valve for power regulation).

Press the Menu key again.

The screen 3/8 is displayed.

This screen shows the instantaneous current flowing to the regulation solenoid valve EV5 which determines the RPMs of the hydrostatic driven cooler fan. Press the Menu key again.

The screens 4 to 8 are successively displayed.

The screens 4 to 8 provides an overview of the status of the different electrical inputs and outputs.

on means that the corresponding input has been deactivated in the software.

The durations indicated in the last line of the screen 4, under M4/Time repectively B19/Time correspond to the pause time for the windshield wiper in intermittent mode, respectively to the delay time for the engine low idle automatic system.

3-21 Menu "Info In/Outputs"- Status of electrical inputs and outputs

The screens 7 and 8 give information concerning the PLD control system of the Diesel engine (Pump line nozzle injection system): monitoring system. e Diesel engine with standard power curve. commutation of hydraulic power. ult is detected in the engine monitoring circuit when the engine is in safety mode. of the preglow of the Diesel engine. the postglow of the Diesel engine. engine coolant or fuel overheating. power limitation in accordance with the atmosphéric pressure. greater than 7 bar (sensor B159). sure measurement for the hoist movement is greater than 7 bar (sensor B160). essure measurement for the left swing movement is greater than 7 bar (sensor B167). essure measurement for the translation movement is greater than 7 bar (sensor B162). is greater than 7 bar (sensor B163). movement is greater than 7 bar (sensor B168). movement is greater than 7 bar (sensor B85).

To exit the menu: Press the Back key. The sub-menu will be aborted.

Menu "i-errors" - operating faults and electrical system errors

Fig. 3-22 Menu "i-errors" - operating faults and electrical system errors list S-Exxx, all the operating faults are listed, just as with the selection list Exxx, but this time only faults which appeared when the service connector was connected .

There are 3 possible choices in this menu: list Exxx, all the operating faults detected by the switches and sensors monitoring the machine parameters are listed. list E-elec, all the electrical system errors (cable errors, sensor errors, ...) detected during the operation of the machine are listed.

To select the desired error type: Press the Down or Up arrow key to preselect desired type Press the Menu key. The sub-menu on a black background will be displayed. If more than 6 error codes are listed, use the arrow keys Down or Up to scroll in the list.

"list Exxx": Operating faults