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INSTRUCTIONS JIB CRANE SERIES GBA - GBP
MAN05MGO5
5.2.6 Manoeuvres: lifting, trolley traverse and arm rotation
It is a good rule to perform one movement at a time, because only in this way a manoeuvre can be started, stopped
and constantly followed by the operator, who also has to avoid continuously switching the machine on and off even
for little movements.
•Engagementoftheloadbythehookofthehoistandbytheliftingaccessoriesmustbecarriedoutwithgreatcare,
delicately and without jolting.
•Beginaliftingoperationbyslowlystretchingthechainuntiltheloadhasbeenliftedbyafewcentimetres,stopthe
manoeuvre and check the hold and stability of the load.
•Attheendofthemanoeuvre,placetheloadonthegroundcarefullyandremovethehookofthehoist.
•
During lifting manoeuvres
the operator must avoid resting the hook on the ground or on loads to be lifted, to
avoid free oscillation of the chain. The operator must absolutely avoid making skew falls with the chain, which are
always dangerous and difficult to control (fig. 62)
•
During trolley travelling manoeuvres
it is obligatory to avoid violent collisions between the trolley /hoist and the
end buffer plates so as not to cause serious repercussions on the mechanical organs and on the steel structure.
•
During manual travelling and/or rotation manoeuvres of the arm
the operator must handle the load by pushing
it and never by pulling it towards himself, to avoid the risk of crushing (fig. 63).
•Operatewithcareanddiligence,followthemanoeuvreconstantlyandvisuallycheckthebalanceofthe
mass being moved.
•Avoidsharporjoltingmovementswhichareverydamagingtothestabilityoftheloadbecauseofthe
dynamiceffectswhicharegenerated.
•Neverliftloadswithanunbalancedandnonbarycentricengagement.Neverneglecttohooktheload
and secure all original sling accessories. Do not secure the load with improvised slinging.
•Neverleavetheloadsuspended,oncethehandlingoperationhasbegunitmustbecompletedinthe
shortest time possible and the load must be positioned without crushing the lifting accessories.
5.2.7 Safety devices
•Cuttingoutthepowersupplyofthecranemustbedonebyswitchingoffthelineswitch/selector(notincludedin
the supply) and/or by pushing the “emergency stop” button on the push-button panel.
•Anelectricand/ormechanicallockpreventssimultaneoususeofcommandsforthetwodirectionsofthemotorsfor
both high and low speeds.
• A lack of voltage causes all movements of the hoist and trolley to be stopped immediately, as the motors are
equipped with an automatic braking device.
•Asafetylatchisinstalledontheliftinghooktopreventaccidentalunhookingoftheslingingand/orloading
•Thelifting,translationandrotationlimitswitchesboundthemaximumverticalandhorizontaltravelingoftheload.
They are emergency devices and are not suitable for turning off the machine or to begin new operations.
•WhenthesafetydevicesarenotsuppliedbyDONATISOLLEVAMENTIS.r.l.,theymustbe
installedbythepurchaser.
•Useofthejibcraneand/orapplicationoftheCEmarque,shownhereontheright,is
forbidden before the crane has been completed according to the specifications detailed
in this point.
fig.63
fig.62
KMAN05MG05
