JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
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DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597<br />
5. - FUNCTIONING <strong>AN</strong>D USE OF THE <strong>JIB</strong> CR<strong>AN</strong>E<br />
5.1 - Functions of the jib crane<br />
5.1.1 Intended use - Foreseen use - Designated use<br />
§ The manually rotated jib cranes with articulated arm, in the CBB column-mounted version and the<br />
MBB wall-mounted version are produced for the manoeuvring of goods inside a building, in a yard or to<br />
serve operative positions.<br />
.<br />
§ The jib cranes with articulated arm have two functions:<br />
• they lift a load vertically, using the hook of the lifting block, generally made up of a manual or<br />
electric chain hoist and using suitable accessories for such an operation;<br />
• they rotate the load, around the constraint axis of the arm, by pushing by hand the load, using the<br />
surrounding circular area, delineated by the rotation range of the arms.<br />
§ If the crane is fitted with an electric hoist the movements can be activated by:<br />
• using the push-button control panel with the push-buttons of “ascent” and “descent” for<br />
control of the lifting movement<br />
§ If the crane is fitted with manual hoist the movements are activated by:<br />
• mechanical action of the manoeuvre chain of the hoist for lifting<br />
§ In all cases the rotation movement of the arms is activated manually with push-training.<br />
§ When it is controlled by the push-button control panel, the push-buttons activate the function when<br />
they are held down and control of the auxiliary slow lifting ,it can be activated as follows:<br />
• with separate push-buttons which keep the “high” and “low” speed controls separate.<br />
• with a single push-button with two positions, the first position is the “low” speed and the second<br />
position is the “high” speed<br />
The emergency stop button is red and mushroom-shaped, and activates the stop function when<br />
pressed right down.<br />
•To allow the jib crane to work it is necessary to bring the emergency stop button to its most “raised”<br />
gear speed position and then push the start buttons one after the other.<br />
•The push-button control panel is pendant from the hoist and can be used by the operator on the ground<br />
while following the travelling movement the rotation of the arms.<br />
•The electric movements of the jib crane can also be controlled through a radio-control system, the<br />
functions of the buttons are the same as the ones on the pendant push-button panel.<br />
• When the jib crane is controlled using the radio-control the push-button panel is<br />
not attached to the crane itself, therefore the operator must always take the utmost<br />
care during manoeuvres and never lose sight of the work area or of the load being<br />
moved so as not to threaten his own safety and/or that of other people present.<br />
• It is forbidden to control the jib crane movements while sitting or standing on it.<br />
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