Control and operation

Operating and control elements

Overload warning device (optional equipment)

For a machine fitted with the optional equipment "overload warning device", and if this equipment has been turned on via the switch S18, this symbol alerts the operator that the load limit of the machine has been reached

At the same time the buzzer sounds to alert the operator to this fact.

No overload warning device recognized

This symbol appears if switching on the overload warning device via switch S18 though no overload warning device has been installed and/or correctly initialised on the machine.

Warm up procedure

This symbol appears during a warm up procedure of the hydraulic oil.

Working pumps swivelled back to minimum delivery

3.1.6Information provided in the menus

Menu selection from main screen:

To change to the list of menus, the main screen must be visible. With the main screen visible, press the Menu key of the display. The list of accessible menus is displayed.

To select a menu:

Press arrow key Down or Up

The following or previous menu will be displayed on the screen with a black background.

If the desired menu is displayed with a black background, as an example here the Reset daily operating hours menu: Press the Menu key again.

The sub-menu for the function selected is displayed. Press the Back key again. The sub-menu will be aborted.

Symbol

Role of the menu

Set ServiceConfirmation of the execution of a recurring service work

Set OptionSelection of the flow and pressure limitations relating to the mounted working tool (e.g. hammer)

Info - HoursDisplay of the operating hours of the machine components and general machine data.

Info - In/OutputsInformation about the status of the hydraulic pumps and of the electrical inputs and outputs

Info - ErrorsMemory of the stored operating faults and electrical system errors

Set Clock Setting of the clock

Tab. 3-1 Overview of the possible menus

Menü "Reset Data" - reset of daily operating hours counter

Fig. 3-12 Resetting the daily operating hours counter

Press the Up arrow key. The OK which is not crossed out will be displayed with a black background. Press the Menu key. The operating hours will be reset to 0. The arrow key symbols Up and Down and the Menu symbol will no longer be displayed.

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

Menu "Set Service" - confirmation of the execution of a service work

This menu gives information about the falling due of the next service work and allows to confirm the execution of the service work after it just has been carried out.

3-13 Menu "Set Service"

The operating hours of the next service due (in this example, “500Hrs”) and the current operating hours (“478 Hrs”) are displayed in the menu.

An upcoming service work can be confirmed a maximum of 50operating hours before the service interval is due.

When this time period has been reached a query will appear to ask whether the service work has been carried out.

If the service work has been carried out.

Press the Up arrow key. The choice "OK not crossed out" will be displayed with a black background. Press the Menu key.

The current operating hour will be stored as the time for the last carrying out of a recurring service work.

The operating hours indicating the next service due will be increased by the duration of a service interval (as an example they augment from 500 to 1000 working hours).

If the service work has not been carried out.

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

Menu "Set option" - selection of the flow and pressure limitations

This menu allows to allocate flow and pressure limitation options to external input I1 (choice of the maximum oil flows and system pressure depending on the mounted working tool).

In this menu, the operator can choose between 10 predefined options. For each option a pressure limitation and a flow limitation is assigned. When an option is chosen, the limitation values assigned to this option are effective as soon as the command of the optional tool is actuated (actuation of the foot pedal for hammer or grapple for example).

A Caution!

Selecting a wrong option for a tool can damage it (for example: hydraulic hammer) or cause its restricted operation (for example: milling tool).

EV1 = Regulation solenoid valve for oil flow limitation on pump P1

EV6 = Regulation sol. valve for pressure limitation in hydraulic system

EV2 = Regulation solenoid valve for oil flow limitation on pump P2

The black field represents the active option.

In the left figure, the option 1 is active for the input I1. This means, if the external hardware input I1 is activated, then the nominal pump values allocated in option 1 for the excavator control are given as maximum nominal values.

Note!

The values EV1 and EV2 determine the flow limitation of the main pumps when the special attachment is actuated.

The value EV6 determines the maximum allowed pressure level for the actuation of the special attachment.