Control and operation

Attaching and dismounting equipment parts

Connect hydraulic lines or electrical lines, if necessary. (eg. when attaching a grab).

A direct visual check must be made to ensure that the work tool is correctly positioned.

A “working cycle” should also be performed with the work tool. This means that the work tool should be raised before use to the point at which the correct positioning of, for example, the pin in the pin eye, can be checked by tilting in and out.

Danger!

The electronic monitoring system for the quick-change adapter displays defective functions. These could be caused by an unmonitored position change of the locking pins or by mechanical or hydraulic damage. A defect may also be present in the electrical system (eg. proximity switch or buzzer).

If the buzzer and telltale light are activated without a deliberate locking or unlocking procedure being carried out, stop all work at once.

If the buzzer and telltale light are not activated while a deliberate locking or unlocking procedure is being carried out, stop all work at once.

Only resume working once defective parts have been repaired or replaced.

Performing the working cycle

Before starting to use the work tool (eg. grab, ditcher bucket), the special installation information in the chapter “Attaching and dismounting equipment parts” is also to be noted.

Detaching a work tool

To move the equipment into position:

Caution!

Hydraulic lines are pressurized!

Remove the pressure using the joystick before removing the hydraulic lines (switch off the engine, turn the ignition key into the contact position, operate the joystick).

Disconnect hydraulic lines or electrical lines, if necessary (eg. when dismounting a grab).

Extend the shovel tilting cylinder fully.

To unlock the quick-change adapter:

Danger!

Risk of injury!

Once unlocked, there is no fixed connection between the adapter and the work tool. The work tool could work itself out independently.

Always keep the work tool as close to the ground as possible when unlocking to avoid creating conditions which may lead to danger.

Press switch S19

Quick-change adapter is activated. LED in switch illuminates.

Press and hold button S47

Quick-change adapter is activated.

Press and hold pushbutton R until the locking pins are fully inserted. The buzzer sounds. The symbol “Quick changer” appears on screen. The quick-change adapter is unlocked.

To put down the work tool:

3-112 Putting down the work tool

Slowly insert the shovel tilting cylinder and lay the work tool on the ground. The new work tool can be taken up.

Using the quick-change adapter for lifting work

3-113 Hydraulic quick-change adapter

The quick-change adapter has two integrated lifting hooks. The machine may only be used for hoisting work if the safety devices required for the purpose are present and functioning correctly (see chapter “Hoisting work” or “Overload warning device”).

The maximum load carrying capacity of each individual lifting hook is given on the quick-change adapter. The load carrying capacity of the quick-change adapter or the copyright by

Attaching and dismounting equipment parts integrated lifting hook can exceed or fall short of the load carrying capacity of the carrier device.

When operating, it should be ensured that the values for the carrier device / quickchange adapter given in the load chart and the technical data are adhered to.

Load hoisting work can be carried out with attached or dismounted work tools. With dismounted work tools, it is sensible to fully insert the locking pins when carrying out hoisting work. This prevents the load take-up device being turned round too strongly by the locking pins and damaged.

Danger!

Never use the take-up hook 6 to fasten a load because there is no secure hold for the load take-up device, eg. rope or chains, in the take-up hook. Before using for hoisting work, deactivate the quick-change adapter. LED in switch S19 has gone out. Release button S47

To cancel the buzzer (warning tone)

The symbol “Quick changer” on screen and the buzzer (warning tone) indicate that the quick-change adapter is not locked or is incorrectly locked.

After putting down the work tool, the buzzer (warning tone) continues to sound if the locking pins are not removed.

When the overload warning device is switched on, the warning tone for the quickchange adapter can be cancelled.

If no new work tool is to be taken up, it is sensible to switch off the warning tone so avoid constant noise disturbance. Also, another buzzer (overload warning device) can be heard more easily.

Press switch S349

The buzzer will switch off.

The symbol “Quick changer” on screen will continue to be displayed. The acoustic warning device will only activate automatically once the locking pins have been removed again.

To reactivate the warning tone for the quick-change adapter, remove the locking pins fully once until the “Quick changer” symbol goes out on screen. The buzzer (warning tone) for monitoring the quick-change adapter is reactivated.

3.7.5LIKUFIX – hydraulic coupling system (option)

LIKUFIX enables automatic coupling of hydraulic lines in connection with the hydraulic quick-change adapter. The machine operator does not have to connect or separate hydraulic lines for work tools himself.

4

Attaching and dismounting equipment parts

2

3

5

Attaching and dismounting work tools

Attaching and dismounting is carried out as described in the chapter

Please also note:

Before attaching, remove the protective coverings on the quick-change adapter 1 and the work tool 2

Always keep hydraulic couplings 3 and 4 clean.

Perform a visual check for cleanliness before attaching. If necessary, clean all coupling parts and the sealing surfaces with a clean, oil-soaked cloth.