Control, operation

Fig.

Keys in different colours

1 Programmed ignition key (blue)

2 Master key (red)

Note!

The red master key cannot be used to start the machine. It is only used for the programming and deprogramming of additional blue ignition keys.

It is very important that the red master key is kept in a safe place (e.g. machine owner's office) and only the blue key is handed over to the machine operator. Start the machine with a blue programmed key.

Safety functions

The electronic immobiliser is automatically activated after five seconds, provided that the diesel engine is shut down and the ignition key is removed.

If more than five keys with different codes are inserted into the ignition within a period of one minute, the immobiliser remains activated for 15 minutes. During this period, it is not possible to start the machine with any other key.

Manipulation protection

The electronic immobiliser cannot be deactivated by manual manipulation to the machine.

Deprogramming keys

If a programmed key is lost, the remaining programmed keys must be deprogrammed and reprogrammed.

For detailed information (functions, deletion of program, programming of keys, troubleshooting), see the user manual of the manufacturer.

3.3.3.4Switching on the electrical system

Switching on the main battery switch:

Turn battery main switch to position 1 (ON).

Switching on the ignition:

0 Neutral position

2 Ignition position

1 Contact position

P Parking position

Turn battery main switch to position 1 (ON). Turn the ignition key to contact position 1

The ignition is switched on.

As soon as the system is switched on, it completes a self-test of the control panel keyboard and the indicating instruments: All indicator lights, with the exception of the two LEDs of the switch S22 are briefly on.

The LIEBHERR logo is shown on the monitoring display. During the self-test, observe the indicating instruments.

Note!

If the system fails to complete a self-test of the control panel keyboard and the indicating instruments, check whether the battery main switch is in the "ON" position.

After the self-test is completed, the system indicates with a graphic sign whether a service check is due. This icon is shown temporarily, replacing the operating hours indicator.

The service check symbol disappears after about 8seconds.

3.3.3.5Starting diesel engine

Note!

Incorrect starting can damage the diesel engine! Only operate the starter, if the diesel engine is off. Do not operate the starter for periods of more than 20 seconds. If the machine fails to start after 20 seconds of starter operation: Wait at least 1minute until the next start attempt.

Turn the ignition key to position 0 before starting the engine again. After three unsuccessful start attempts: identify the cause of the failure and eliminate it.

Engine starting process: Turn ignition key to ignition position 2.

As soon as the engine is running, release the ignition key. The indicator lights H2 and H12 must be off. A buzzer signal is audible while the engine oil pressure is built up.

Starting engine at low ambient temperatures:

Press the switch S36 (SF1) while starting the engine. The cold-start function is activated. The LED is on.

Ether is sprayed into the suction section of the diesel engine, facilitating starting.

If the machine is to be started at temperatures below -20°C, we recommend equipping the machine with one starter aid available from LIEBHERR.

3.3.3.6Warm-up phase for diesel engine and hydraulic system

Diesel engine

If the engine coolant is cold (temperature below 20°C), the speed is automatically set to step3.

This process is continued until the engine coolant temperature reaches 20°C, or for maximum 3minutes.

Slowly increase the engine load until the second green LED (from the left) at the indicator P2 is on.

Note!

The engine is damaged if it is operated for a prolonged time at idle speed. Shut down the diesel engine, if the machine is not operated.

Hydraulic system

If the hydraulic oil is cold (temperature below 8°C), the pump performance is automatically limited.

As soon as the hydraulic oil temperature rises to above 8°C, the machine can be operated at full power.

3.3.3.7Power selection (MODE) and speed adjustment

Fig. 3-57 Speed adjustment and mode functions

The display P4 (LED chain) indicates the preselected engine speed. The chain represents 10 speed steps.

Selecting engine power (mode):

By pressing the switch S86, you can select between 4 different modes. The active mode is indicated by the letter below the LED.

L: LIFT mode (speed step 5 - extremely sensitive lifting of loads)

F: FINE mode (speed step 10 - grading work)

E: ECO mode (speed step 8 - economic operation)

P: POWER mode (speed step 10)