Control and operation

structures and components of the respective Liebherr Mining Machine and therefore will significantly reduce the expected lifetime of structures and/or components.

Working safely with the machine used for demolition application are subject to specific conditions and must be fitted with special safety devices (for further information, contact Liebherr customer service). ditional safety instructions that follow. le local regulations. or special tool you use. and approved operator protective structures (e.g. FOPS, front protective grid) are not installed. ffects on the machine stability, reduce the height and the speed of the movement. e attachment or special tool. the back-end. the attachment or special tool is not safely positioned on the ground. y and the acoustic warning signals. percarriage turns.

Before the operation of the machine ions are in the specified limits. ly.

Incorrect use of the machine used for demolition application only by trained specialist personnel.

Do not stop it suddenly. Always move the attachment or special tool slowly and with constant speed movements.

Incorrect use of the attachment or special tool used for demolition application special tool exclusively designed for the task. front protective grid. its specified limits. For more information,

Safe use of a hydraulic hammer or a hydraulic ripper

ation, the use of a hydraulic hammer or a hydraulic ripper can result in vibrations, shocks or stresses which are higher than in normal use. It may reduce the expected lifetime of structures and/or components.

ripper must be selected with particular care. When using a hydraulic hammer or a hydraulic ripper not permitted by Liebherr, warranty for steel structures and machine components will be ceased. n the machine on firm and level ground. ripper designed exclusively for breaking stone, concrete and other breakable materials.

draulic ripper in the longitudinal direction of the machine and with the windshield closed or with a front protective grid.

that no cylinder is entirely extended or retracted and that the stick is not in the vertical position.

performing retraction and extension motions of the hydraulic hammer.

time to the same place. Change the breaking point. Too long uninterrupted operation of the hydraulic hammer leads to an unnecessary overheating of the hydraulic oil.

lic hammer or of the hydraulic ripper to break stone or other materials. Do not move obstacles with the hydraulic hammer. Misuse of this nature would damage both the hammer and the machine.

king tasks, the pressure of the dampening accumulator of the hydraulic ripper must be adjusted depending on the nature of the ground and the excavator model.

Safe use of a ripper

where the use of a bucket is not efficient to break out rocks. Thus, these applications are more severe than in normal use.

n, the use of a ripper can result in vibrations, shocks or stresses which are higher than in normal use. It may reduce the expected lifetime of structures and/or components.

. Contact the Liebherr customer service.

ted by Liebherr, warranty for steel structures and machine components will be ceased.

copyright © Liebherr-Mining Equipment Colmar SAS 2020

Safe use when loading and unloading (particularly when loading and unloading wood)

en working with a grab to move with the attachment raised and the load lifted up; this applies, for example, when loading and unloading wood.

e will be displaced upwards in the vertical direction. The driving characteristics of the machine will thus be influenced persistently, e.g. through reduction of the dynamic stability.

The following instructions are therefore to be observed at all times: red machine characteristics and environmental conditions.

noeuvres.

aking, accelerating and changing direction.

ed the upper structure to the driving position.

when the attachment is raised. cab.

there is a risk of objects falling from above.

such as logs, is dependent on length, diameter and specific weight. The influencing variables present in a natural product, such as moisture, must be noted.

with grabs require the machine operator to receive special instruction and training.

sufficient training and practical experience.

Safe use of machines with tower elevation

gravity of the machine will be displaced upwards in the vertical direction. The driving and work characteristics of the machine will thus be influenced persistently, e.g. through reduction of the dynamic stability.

the machine must be aligned horizontally before use. In horizontal alignment, the centre of gravity of the uppercarriage is over the centre of the undercarriage, which reduces the risk of tilting.

tilt despite being aligned!

The following instructions are therefore to be observed at all times:

When moving the machine: holes and uneven surfaces jeopardize the stability of the machine. red machine characteristics (high centre of gravity) and environmental conditions. noeuvres. rection. direction in order to prevent unacceptable banking of the machine. slowly! as close as possible to the machine (Caution! swinging grab) and hold the load close to the undercarriage and above the substrate. ttachment or uppercarriage abruptly.

When loading and unloading: the uppercarriage out of the transport position. act surface of the support (load carrying capacity of the substrate). A support subsiding would have disastrous consequences!

Protection from vibration

building machinery are mainly the result of the type and method of use. The following parameters in particular are decisive influences: ng, brakes, contro control elements when driving and working. determines the vibrational loads since he selects the speed, gearbox ratio, working method and route himself. This means that there is a wide range of different vibrational loads for the same machine type.

Whole-body vibrational load for the machine operator can be reduced if the following recommendations are observed: tachment parts and auxiliary devices for each part of the job. hydraulic excavators, this should be a seat which corresponds with EN ISO 7096). be adjusted depending on the weight and height of the operator. adjustment mechanisms regularly and ensure that these seat characteristics remain as per th structions. ine, particularly with respect to: tyre pressure, brakes, steering, mechanical connections etc. ment jerkily. calculate in sufficient time to carry out any work required. e) which reduce vibration for machines that are driven frequently. If such auxiliary systems are not available, regulate speed to avoid "oscillating" the machine.

3.4.1Uppercarriage swing movements

Turn the uppercarriage

The uppercarriage is turned using the left joystick.

Turn the uppercarriage

Move the left joystick to the left c Uppercarriage turns left. Move the left joystick to the right d Uppercarriage turns right.

Brake the uppercarriage

The machine has a hydraulic and a mechanical swing gear brake.

Hydraulic swing gear brake

Move the left joystick to neutral. A sufficient deceleration of the uppercarriage is achieved. Move the left joystick to the opposite direction. Maximum hydraulic braking action of the uppercarriage is achieved.

Mechanical swing gear brake

The uppercarriage can be locked in any position using a multi disk brake integrated in the swing gear.

The brake is negatively acting, hydraulically actuated and serves as a holding or parking brake.

Caution!

Damage to the machine.

Only lock the mechanical swing gear brake when the uppercarriage is stationary.

Press "Swing brake" button on the keyboard. Swing brake is engaged. Uppercarriage is locked. First LED in the button comes on.

Press button again. Swing brake is released. Uppercarriage is unlocked. First LED in the button goes out.

The swing brake is engaged if the safety lever is up or the access ladder is down (if installed) or the service trap is down (if installed).

In option, a buzzer can be activated in the cab if you operate the joystick to turn the uppercarriage while the swing brake is engaged.

Caution!

The brake only applies when the uppercarriage is near standstill and if no swing motion is actuated with the joystick.

To stop the uppercarriage when working on a slope: Use the joystick to reduce the uppercarriage speed. Press "Swing brake" button to operate the swing brake. Move the joystick back to "0" position only after the brake operates.

Semi-automatic swing brake control (optional)

Make sure that the swing brake does not operate.

Tilt down the rocker switch S57 on the right joystick handle. The semi-automatic control of the swing brake is on. When the semi-automatic control of the swing brake is on:

Tilt up the rocker switch S57. The semi-automatic control of the swing brake is off. The swing brake is released.