BS EN 707-2018 pdf free download.Agricultural machinery – Slurry tankers – Safety
4.2.2 Tank
4.2.2.1 Cleaning or filling openings
The tank shall have sufficiently sized and placed opening(s) to allow routine service and maintenance, effective cleaning of the entire tank interior or to eliminate any clogging without the necessity for personnel to enter the tank.
To avoid the risk of whole body access into the tank, the openings in the tank shall not be greater than 400 mm in diameter, or not greater than 400 mm × 300 mm, if rectangular.
Larger openings shall be provided with a grating which can only be removed by the use of tools. The apertures in the grating shall not exceed these dimensions.
Covers of cleaning or filling openings on the tank shall be designed, or fitted with a device, to prevent their unintentional closing.
Where the cover of a cleaning or filling opening is hydraulically controlled, it shall be possible to actuate the manual control from the driving position of the tractor or self-propelled machine and the hydraulic hose coupling connected to the tractor shall be clearly identified.
4.2.2.2 Manholes
If provided, the size of manholes shall have a minimum clear diameter of 600 mm.
NOTE Access through a manhole is intended only for access by professional service personnel for work other than normal operation, service or maintenance, i.e. repairing [see 6.1.1 u)].
Unintended whole-body access into the tank through the manhole aperture shall be prevented by a grating removable by tools.
Manhole covers shall be designed to be manually opened and closed.
The mass of the manhole cover, if removable, shall not exceed 25 kg.
Manhole covers, if hinged, shall be designed, or fitted with a device, to prevent their unintentional closing.
A warning shall be provided indicating that climbing into the tank is only allowed for professional service personnel (see 6.2.2).
4.2.2.3 Partitions
Tanks having a capacity equal to or greater than 6 000 l shall be equipped with anti-surge partition(s) according to Table 1. The partition(s) shall be perpendicular to the direction of movement of the machine and each of them shall have a surface area at least equal to 2/3 of the tank cross-section (see Figure 2 for examples).
The partitions should be installed as evenly as possible over the length of the tank.
Partitions and their fastenings shall be designed to be resistant against corrosion.
4.2.2.4 Hoses
Slurry tankers which need connecting hoses for filling purposes shall be fitted with means for supporting and securely retaining these hoses on the tanker during transport.
It shall be possible to store the hoses from the ground in the means for transport or a corresponding lifting device shall be provided.
4.2.2.5 Filling arm
It shall only be possible to actuate the manual control of the filling arm, if any, from the driving position of the tractor or the self-propelled machine.
The complete range of movement of the filling arm shall be visible to the operator when in the driving position.
The manual control shall be of the hold-to-run-type.
4.2.2.6 Level indicator
The tank shall be equipped with a level indicator to show the level of slurry within the tank.
The level indicator shall be located such that it is readable from the driving position of the tractor or selfpropelled machine. A level indicator shall also be readable at other operator workplaces provided on the machine when the machine is not equipped with an automatic switch-off device for the filling pump (e.g.
limit switch).
Slurry tankers the capacity of which exceeds 6 000 l shall be equipped with a level indicator continuously indicating the level of slurry in the tank.
4.2.3 Spreading or injecting boom
4.2.3.1 Swivelling components
The folding/unfolding operations shall not require a manual force greater than 250 N.
Booms that can be manually folded/unfolded shall be fitted with two handles located at a distance of at least 300 mm from the nearest articulation. These handles may be integral parts of the boom, provided they are suitably designed and clearly identified.
In the case of powered operation, the control for the swivelling shall be of the hold-to-run type and the manual control shall be located outside the swivelling zone.
The folding/unfolding speed shall not exceed 0,5 m/s when measured at the end of the boom.
A device shall be provided to prevent the boom from moving when it is folded in the transport position.
If the locking device is a hydraulic locking device it shall comply with of EN ISO 4254-1:2015, 4.11.3.
The locking device and the boom folding/unfolding actions shall be controlled by separate systems.
4.2.3.2 Adjustment of the height of the boom
The manual force necessary to adjust the height of the boom shall not exceed 250 N.
Where height adjustment is by a winch, this winch shall be self-arresting and capable of withstanding at least a load equal to 2 times the weight of the boom.
Means used for adjustment of the height of the boom (e.g. wire ropes, cables) shall withstand at least a load 4 times the weight of the boom.
The winch shall be operable from the ground.
In the case of powered height adjustment, it shall be possible to actuate the manual control from the driving position and the control shall be of the hold-to-run type. To ensure the protection of the operator against crushing and shearing hazards related to a failure of the control circuit, the machine shall be fitted with a device which limits the maximum downward speed of the boom to 10 mm/s.
The boom shall be lockable in position for servicing and maintenance purposes.
The injecting devices shall be in contact with the ground before it is possible to operate the control for putting the injecting boom in floating position or in weight transfer position.BS EN 707 pdf download.