JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED

DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597
3.5 Safety measures and instructions
3.5.1 Control devices
§ The manually rotated jib cranes with articulated arm, in the CBB column-mounted version and the
MBB wall-mounted version can be controlled in the following ways:
1 If fitted with an electric hoist the movements are activated:
*by a push-button panel with ascent and descent buttons to control the lifting movement.
2 If fitted with a manual hoist the movements are activated:
*by mechanical working of the chain of the hoist for the lifting movement.
3 In all cases the rotation movement of the jib crane arm, both in a clockwise and anti-clockwise
direction, is activated manually, with a pushing flexing of the load.
3.5.2 Safety and emergency devices
§ The manually rotated jib cranes with articulated arm in the CBB column-mounted version and the
MBB wall-mounted version, are fitted with the following safety and emergency devices:
1. Rotating brake, by friction, which allows the regulation of the arm’s rotating force and ensures the
stability of positioning.
2. Anti-collision device, available on request, to avoid the telescoping of two or more arms which,
operating in the same area, can interfere with each other; or to avoid the collision of the arm with
surrounding structures.
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