BS/EN 16743-2016 pdf download.Food processing machinery Automatic industrial slicing machines Safety and hygiene requirements.
lithe access opening at the delivery end on the bottom cannot be secured by a guard (e.g. protective sheet) the discharge conveyor, the depositing unit or the following auxiliary component shall be designed so that the access opening is prevented. The openings and safety distance shall meet the requirements set by EN ISO 13857:2008, Table 4.
lithe access is prevented by the following auxiliary component, it shall be ensured that the protective function of the auxiliary component is not changed. This can he achieved by lateral guide plates, stops or locking devices.
5.2.4 Zone 3— Movable guards
5.2.4.1 Manually operated guards
Manually operated guards shall either be designed in such a way that they can be moved and adjusted safely or be fitted with handles.
The force needed to lift or lower a guard shall not exceed 250 N.
Movable guards shall be designed to prevent unexpected closing. This can be achieved by the following measures:
— in the open position the movable guard shall be sufficiently far behind its dead point;
— if the movable guard is on the open position and not sufficiently far behind its dead point, some measure, e.g. a counter weight, a spring or a mechanical locking device shall prevent unexpected closing.
Moveable guards shall be at minimum interlocked or interlocked with guard locking. Usually fixed guards, even those which are movable for ergonomic reasons and need only be opened for maintenance or repairs, are excluded from this.
5.2.4.2 Power-operated guards
If power operated guards are not safe entirely by design (e.g. pre-leading deflector), the risk of crushing by the guard shall be reduced by the following measures:
— when closing the guard the maximum crushing force of the guard shall be 135 N and the maximum impact force shall be 180 N;
— when closing the guard the maximum closing speed shall be 200 mm/s if the distance from the guard to the closing edge is> 200 mm;
— when closing the guard the maximum closing speed shall be 50 mm/s if the distance from the guard to the closing edge is ≤ 200 mm;
— guards whose distance from the guard to the closing edge in its final position is> 20 mm and ≤ 30 mm, the distance to the first danger zone shall be at least 450 mm;
— guards whose distance from the guard to the closing edge In its final position is> 6 mm, the locking force shall be at least 300 N;
— guards whose distance from the guard to the closing edge in its final position is ≤ 6 mm, the locking force shall he at least 200 N.
Power-operated guards that are held closed by a holding force shall not be fitted with handles.
In the event of a power failure (e.g. electrical power failure, pipe or hose break), the movement of the power-operated guard shall be automatically stopped if the crushing force of the guard is greater than 135 N. Safety-related parts of control shall meet the requirements set by
EN ISO 13849-1:2008.
The power operated guard shall be fitted with electro-sensltive protective equipment which stops the movement of the guard when an obstruction is sensed.
Where the operator has to walk underneath a guard that pivots up, the minimum height under the opened guard shall he 1800 mm. The edges of the guard shall not be sharp.
The manufacturer shall describe the safe working practices for the machine in the instruction manual. These working procedures shall be part of the training and shall be followed by the operator. The manufacturer shall describe the guards, the residual risks and the training of the operator in the instruction handbook
5.2.5 Zone 4— Blades
5.2.5.1 General
Injury by cutting or piercing when dealing with the blade or on a stationary blade shall be prevented. This can be achieved e.g. by the following measures:
— The manufacturer shall supply a protection device which allows the blade to be installed, removed and transported safely.
— The manufacturer shall describe the residual risks when handling the blade and working in the cutting zone, especially during cleaning and maintenance operations in the instruction manual. The use and handling of the blade guard shall be described in the instruction manual.BS/EN 16743-2016 pdf download.