3.4Working with the machine

Working safely with the machine

withthespecialfeaturesofthejobsite andanyspecialprecautionsandwarningsignals.Examplesofparticularworkenvironments would be on-site or traffic obstructions, the load-carrying capacity of the ground and any requirements to make the job site safe from public use.

ground.

reduced visibility and changeable ground conditions.

power and gas lines on the job site and takeparticularcarewhenworkingnearthem.Ifnecessary,informtheresponsible authorities.

laws, regulations and rules applicable at the place of use.

aerial lines. Do not allow the attachment to come near cables when working near electrical aerial lines. Risk of fatality! Inform yourself about required safety distances.

theeventofanytransferofelectricity:

•warn anypersonnel inthevicinitynottocomecloseto theexcavatorand not to touch it, the danger zone to a sufficient distance, solutely sure that voltage in the line, which had been touched or damaged, has been turned off! cured. lationsandifnecessary,ensurethatthemachinehasbeenmadesafeasperregulations beforehand. ions of poor visibility or darkness. h the safety belt securely fastened (if available). mediately. stthebrakesysteminaccordancewiththeregulations given in the operating instructions. while the machine is moving. ed while the engine is running. ble and that there is no danger of overturning. Only known loads may be moved with the attachment; this applies particularly when using the grab. ngitudinal direction when moving and hold the load as close to the ground as possible.

EXCEPTION: excavators used for loadingand unloading, see the part "Safe use when loading and unloading (particularly when loading and unloading wood)" on start to tip or slide sideways, however, turn the upper structure to face downhill and lower the attachment at the same time. uphill and not side on to the slope. or you could lose control of the machine. dieselenginemustrunatmaximalspeedandthespeedmayonlybereducedusing the foot pedals. to protect the truck operator. ationsetc.,alwaysuseprotectivedevices specifically designed for the purpose. overview of and whenever necessary, ask for the assistance of a spotter. Only permit one person to give you signals. machine operator. This people must be in with him. combination,thereisariskofcollisionbetweenthe work tool and the machine (uppercarriage and undercarriage). The greatest degree of care must be taken to avoid damage. combination,thereisariskofcollisionbetweenthe worktool andthecab,thecabprotectionor theboom cylinders.Thegreatestdegreeof caremustbe taken toavoiddamage when thehoeteethcomewithinthis area. combination,thereisariskofcollisionbetweenthe worktoolandtheattachmentparts.Thegreatestdegreeofcaremustbetakento avoid damage. combination,thereisariskofcollisionbetweenthe liftringof theattachment and thecaborthecabprotection.Beforeoperating,ensure that there is no risk of collision, especially on excavator with cab elevation. If necessary remove the lift ring. the soil. functions. Always check their functions when starting up the machine. a ditch without striking the attachment on the ditch walls. any other obstacles. tracted are not permitted, even when working in a longitudinal direction. to damage to the steel structures and machine components. special teeth for heavy-duty or special applications are required. copyright © Liebherr-Mining Equipment Colmar SAS 2020 withsidecutters or that areduringoperations with rocky material. This would prolong the work cycles and may lead to damage to the bucket as well as further machine components. et position may only be employed if the working tool or the attachment does not touch the material. drill into the material is not permitted. slowly back to the ground. hydraulics. This would damage the machine. forbiddentoraisethemachinewiththe dozing blade (e.g. carving at the ceiling when tunnelling). ground collapse under the machine. inthefollowing Miningapplications is not approved or condoned by Liebherr: hing or Double flitching) when the material is un-blasted and non-fragmented material which requires the boom down (rod side) pressure to exceed 50 bar.

Otherwise, you must stop the excavator, turn off the radio and keep inside the closed cab until the end of the storm.

Scaling), without exception.

The use of these Mining methods will result in increased fatigue levels to steel structures and components of the respective Liebherr Mining Machine and thereforewillsignificantlyreducetheexpectedlifetimeofstructuresand/orcomponents.

Working safely with the machine used for demolition application n application are subject to specific conditions and mustbefittedwithspecialsafetydevices(forfurtherinformation,contactLiebherr customer service). application,youmustalsoobeytheadditional safety instructions that follow.

Before the operation of the machine ions are in the specified limits. l safetydevices necessary for the taskoperatecorrectly. le local regulations. or special tool you use. tures (e.g. FOPS, front protective grid) are not installed. effects on the machine stability, reduce the height and the speed of the movement. e attachment or special tool. the back-end. safely positioned on the ground. y and the acoustic warning signals. percarriage turns. ltoolwith closedwindshieldandwitha front protective grid. its specifiedlimits.For moreinformation, nual of the tool manufacturer.

Incorrect use of the machine used for demolition application carried out 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 specialtoolexclusivelydesignedforthe task.

Safe use of a hydraulic hammer or a hydraulicripper ion, the use of a hydraulic hammer or a hydraulicrippercan resultinvibrations,shocksorstresses whicharehigherthan in normal use. It may reduce the expected lifetime of structures and/or components. ripper must be selected with particular care.WhenusingahydraulichammerorahydraulicrippernotpermittedbyLiebherr, warranty for steel structures and machine components will be ceased. 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. retracted and that the stick is not in the vertical position. performing retraction and extension motions of the hydraulic hammer. rupted for more than 15 seconds at a time to the same place. Change the breaking point. Too long uninterrupted operationofthehydraulichammerleadstoanunnecessaryoverheatingofthehydraulic oil. copyright © Liebherr-Mining Equipment Colmar SAS 2020 lic hammer or of the hydraulic ripper to breakstoneorothermaterials.Donotmoveobstacleswiththehydraulichammer. Misuse of this nature would damage both the hammer and the machine. essure of the dampening accumulator of the hydraulicrippermust be adjusteddepending onthenature of theground and the excavator model.

Safe use of a ripper

where the use of a bucket is not efficienttobreakoutrocks.Thus,theseapplicationsaremoreseverethaninnormal use.

n,theuseof arippercanresultinvibrations, 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.

n the machine on firm and level ground.

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

attachment raised and the load lifted up; this applies, for example, when loading and unloading wood.

inewillbedisplacedupwardsinthevertical 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: mental conditions.

noeuvres. rection.

ed the upper structure to the driving position. nging movement and dropping of the load when the attachment is raised.

cab.

there is a risk of objects falling from above.

s, such as logs, is dependent on length, diameterandspecific weight.Theinfluencingvariables present inanaturalproduct, such as moisture, must be noted.