Control and operation

Installation and removal of attachment parts

Operating elements

Switch S19

Use switch S19 to activate the auxiliary hydraulic device for the grab torsional mechanism and quick-change adapter. Press switch. Auxiliary device is activated. LED in switch illuminates. Press switch again Auxiliary device is deactivated. LED in the switch goes out.

Key switch S47:

Pressing the button activates the quick-change locking pins.

Pushbuttons L and R

Pushbutton L = extend locking pin (lock)

Pushbutton R = retract locking pin (unlock)

The pushbuttons are located on the left and/or right joystick (depending on the

E Operation with left joystick (standard) F Operation with left and right joystick (optional extras)

Symbol "Quick change adapter"

The symbol appears:

Two-hand operation

The quick-change adapter is activated using two-hand operation. The locking pins can only be moved at first if button S47 and one of the pushbuttons L or R are pressed.

The control has a hold function which allows both joysticks to be operated simultaneously when attaching and dismounting work tools. If one of the pushbuttons, L or R is continued to be pressed, button S47 can be released and the direction of movement of the locking pins is retained. If the direction of movement is to be changed, button S47 and the relevant pushbutton L or R must be pressed.

Caution !

The extension of the locking pins (locking of the coupler) is possible even without depressing S47 However this must be absolutely avoided since it causes a quick wear of the sealing rings in the LIKUFIX hydraulic coupling system.

Attaching the work tool

To move the equipment into position:

Fig. 3-121 Positioning the equipment

The equipment must be standing stable or lay loose on the ground. Move the stanchion and work tool into position. Insert the shovel tilting cylinder fully.

To unlock the quick-change adapter: 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 quick-change adapter is unlocked.

Taking up the work tool:

Taking up the work tool, first step

Move the quick-change adapter into a position that allows the work tool to be picked up using the take-up hook.

Taking up the work tool, secondary step

Raise the work tool from the ground and extend the shovel tilting cylinder fully until the bearing panel for the work tool is laying on the quick-change adapter stop. The bore holes of the work tool and the locking pins of the quick-change adapter must align.

To lock the quick-change adapter:

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 L until the locking pins are fully removed. The buzzer goes off.

The quick-change adapter is locked. The work tool is bolted on when taking up correctly.

Release button S47

Press switch S19.

Quick-change adapter is deactivated. LED in the switch goes out.

Caution!

Hydraulic lines are pressurized!

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

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.

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

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:

Installation and removal of attachment parts

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 quick-change adapter is unlocked.

To put down the work tool:

3-125 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

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

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 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)

e 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 een will continue to be displayed.

The buzzer will switch off.

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

The buzzer (warning tone) for monitoring the quick-change adapter is reactivated.

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.