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Normas DIN – AENOR
DIN EN 12999/A1:2012-01

DIN EN 12999/A1:2012-01

Cranes - Loader cranes; German version EN 12999:2011/FprA1:2012 / Note: Date of issue 2012-01-23

Appareils de levage à charge suspendue - Grues de chargement; Version allemande EN 12999:2011/FprA1:2012 / Attention: Date de parution 2012-01-23

Krane - Ladekrane; Deutsche Fassung EN 12999:2011/FprA1:2012 / Achtung: Erscheinungsdatum 2012-01-23

Fecha Anulación:
2013-02 /Withdrawn
Equivalencias internacionales:

EN 12999/FprA1 (2012-01)

Relación con otras normas DIN:

Reemplazada por: DIN EN 12999:2013-02

Resumen:
Starting to apply EN 12999:2011, it becomes evident that there are two safety related issues where the current writing is unsatisfactory. First issue is addressed in clauses 5.4.3.1 and 5.6.1.3. These clauses deal with the requirement of indication when the boom system is not stowed in its transport position. The two clauses are now ambiguous and can be interpreted to be in contradiction. The intention when revising EN 12999 was that it for all vehicle mounted loader cranes should be required and sufficient to indicate when the angle of the first boom is out of its transport position. The two clauses should be amended to be unambiguous. Second issue is addressed in clause 5.4.1.2. This clause deals with the stabiliser feet and requires that they shall adjust to a 10° ground slope. This requirement is unsafe for timber handling cranes. These cranes often work with one leg down on the steep slope of a ditch. There, a fixed foot embeds firmly in the soft soil, whereas a tiltable foot easily slides down the slope. The clause should be amended to provide a safe requirement also for timber handling cranes. A new work item is needed to make these amendments. The work item should follow the 3 months UAP path.
Keywords:
Commercial vehicles, Corridors, Crane trucks, Cranes, Design, Erecting (construction operation), Ergonomics, Handling, Hazard removal, Hazards, Health protection, Inspection, Layout, Lorry mounted cranes, Manual operation, Marking, Mathematical calculations, Mechanical engineering, Motor lorries, Occupational safety, Operating devices, Operating elements, Personal health, Protective measures, Safeguarding, Safety, Safety measures, Safety of machinery, Safety requirements, Specification (approval), Testing, Types, Verification, Warning notices, Warning signs, Warnings, Workplace safety
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