50. An employer shall ensure that—

(a) when two or more items of work equipment used for lifting non-guided loads are installed or erected on a site in such a way that their working radii overlap appropriate measures are taken to avoid collision between loads or the work equipment parts themselves, or both,

(b) when using mobile work equipment for lifting non-guided loads,

(i) measures are taken to prevent the equipment from tilting, overturning or, if necessary, moving or slipping, and

(ii) checks are made to ensure that the measures are executed properly,

(c) if the operator of work equipment designed for lifting non-guided loads cannot observe the full path of the load either directly or by means of auxiliary equipment providing the necessary information,

(i) a competent person is in communication with the operator to guide him or her, and

(ii) organisational measures are taken to prevent collisions of the load which could endanger employees,

(d) work is organised in such a way that, when an employee is attaching or detaching a load by hand, it can be done safely, in particular through the employee retaining direct or indirect control of the work equipment,

(e) if a load has to be F18[lifted simultaneously] by two or more pieces of work equipment for lifting non-guided F18[loads], a procedure is established and applied to ensure good co-ordination on the part of the operators,

(f) if work equipment designed for lifting non-guided loads cannot maintain its hold on the load in the event of a complete or partial power failure, appropriate measures are taken to avoid exposing employees to any resultant risks,

(g) suspended loads are not left without surveillance unless access to the danger zone is prevented and the load has been safely suspended and is safely held,

(h) open air use of work equipment designed for lifting non-guided loads is halted when meteorological conditions deteriorate to the point of jeopardising the safe use of the equipment and exposing employees to risks, and

(i) adequate protection measures, in F18[particular measures] to avoid work equipment turning over are taken to avoid any risks to employees.