DIRECTIVE 2006/42/EC ANNEX I_EHSR


1.4. REQUIRED CHARACTERISTICS OF GUARDS AND PROTECTIVE DEVICES
1.4.1. General requirements
Guards and protective devices must:
— be of robust construction,
— be securely held in place,
— not give rise to any additional hazard,

— not be easy to by-pass or render non-operational,
— be located at an adequate distance from the danger zone,
— cause minimum obstruction to the view of the production process, and
— enable essential work to be carried out on the installation and/or replacement of tools and for maintenance
purposes by restricting access exclusively to the area where the work has to be done, if possible
without the guard having to be removed or the protective device having to be disabled.
In addition, guards must, where possible, protect against the ejection or falling of materials or objects and
against emissions generated by the machinery.
1.4.2. Special requirements for guards
1.4.2.1. Fixed guards
Fixed guards must be fixed by systems that can be opened or removed only with tools.
Their fixing systems must remain attached to the guards or to the machinery when the guards are removed.
Where possible, guards must be incapable of remaining in place without their fixings.
1.4.2.2. Interlocking movable guards
Interlocking movable guards must:
— as far as possible remain attached to the machinery when open,
— be designed and constructed in such a way that they can be adjusted only by means of an intentional
action.
Interlocking movable guards must be associated with an interlocking device that:
— prevents the start of hazardous machinery functions until they are closed and
— gives a stop command whenever they are no longer closed.
Where it is possible for an operator to reach the danger zone before the risk due to the hazardous machinery
functions has ceased, movable guards must be associated with a guard locking device in addition to an interlocking
device that:
— prevents the start of hazardous machinery functions until the guard is closed and locked, and
— keeps the guard closed and locked until the risk of injury from the hazardous machinery functions has
ceased.
Interlocking movable guards must be designed in such a way that the absence or failure of one of their
components prevents starting or stops the hazardous machinery functions.
1.4.2.3. Adjustable guards restricting access
Adjustable guards restricting access to those areas of the moving parts strictly necessary for the work must
be:
— adjustable manually or automatically, depending on the type of work involved, and
— readily adjustable without the use of tools.
1.4.3. Special requirements for protective devices
Protective devices must be designed and incorporated into the control system in such a way that:
— moving parts cannot start up while they are within the operator's reach,

— persons cannot reach moving parts while the parts are moving, and
— the absence or failure of one of their components prevents starting or stops the moving parts.
Protective devices must be adjustable only by means of an intentional action.