‘Annex III

:

Requirements relating to the EC type approval of a vehicle with regard to the fitting of spray suppression systems

‘Annex V

:

Figures 1 to 9’.

—

type of spray suppression device (installed on the vehicle),

—

manufacturer’s spray suppression system type designation.’

0.1.

For vehicles of category N1 and N2 with a permissible maximum laden mass not exceeding 7,5 tonnes, the requirements of Directive 78/549/EEC (*2) may be applied as alternative to the requirements of this Directive at the request of the manufacturer.

0.2.

‘7.1.1.

The mudguards must cover the zone immediately above, ahead and behind the tyre or tyres in the following manner:

‘7.1.3.

If the mudguards are made up of several components, when fitted, they must not incorporate any aperture enabling spray to exit while the vehicle is in motion. This requirement is deemed to be met if, when the vehicle is either laden or unladen, any radial jet running outwards from the wheel centre over the entire width of the tyre running surface and within the range covered by the mudguard always strikes against a part of the spray suppression system.’;

‘7.2.1.

In the case of single axles, the lower edge of the outer valance may not be situated beyond the following distances and radii, as measured from the centre of the wheel, except at the lowest extremities that may be rounded (Figure 2 of Annex V).

Air suspension:

Mechanical suspension

7.2.2.

In the case of multiple axles the requirements laid down in point 7.2.1 do not apply between the vertical transversal planes passing through the centre of the first and the last axles where the outer valance may be straight in order to ensure the continuity of the spray suppression system. (Figure 4 of Annex V).

7.2.3.

The distance between the uppermost and the lowermost points of the spray suppression system (mudguard and outer valance) measured in any cross section perpendicular to the mudguard (see figures 1b and 2 in Annex V) must extend to not less than 45 mm at all points behind a vertical line passing through the centre of the wheel or the first wheel in the case of multiple axles. This dimension may be gradually reduced in front of this line.’;

‘7.2.5.

The requirements of points 7.2.3 and 7.2.4 may not be respected locally when the valance is composed by different elements with relative movement.

7.2.6.

Tractors for semi-trailers with a low chassis (defined in point 6.20 of standard ISO 612 of 1978), namely those which may have a coupling pin height in relation to the ground equal to or less than 1 100 mm, may be designed in such a way as to be exempted from the requirements of points 7.1.1.a, 7.1.3 and 7.2.4. In this regard, mudguards and valances may not cover the area immediately above the tyres of the rear axles, when these tractors are coupled to a semi-trailer, in order to avoid the spray-suppression system being destroyed. However, the mudguards and valances of these vehicles must conform to the requirements of the above points, in sectors more than 60° from the vertical line passing through the centre of the wheel, in front and behind these tyres.

Those vehicles must therefore be designed in such a way as to meet the requirements set out in the first paragraph when they are operated without a semi-trailer.

In order to be able to meet those requirements, mudguards and valances may, for example, comprise a removable part.’;

‘7.3.1.

The width of the flap must fulfil the requirement for “q” in point 7.1.1(c), except where the flap is within the mudguards, in which case it must be at least equal in width to the tread of the tyre.

The width of the part of the rain flaps positioned beneath the mudguard must satisfy the condition laid down in this paragraph with a tolerance of 10 mm at each side.’;

‘7.3.3.

The maximum height of the bottom edge must not exceed 200 mm (Figure 3 of Annex V).

This distance is increased to 300 mm in the case of the last axle where the radial distance of the lower edge of the outer valancing, Rv, does not exceed the dimensions of the radius of the tyres fitted to the wheels on that axle.

The maximum height of the bottom edge of the rain flap in relation to the ground, may be raised to 300 mm if the manufacturer deems it technically appropriate with regard to the suspension characteristics.’;

‘9.3.2.1.

The lower edge of the spray-suppression device must be not more than 200 mm from the ground.

The maximum height of the bottom edge of the rain flap in relation to the ground, may be raised to 300 mm if the manufacturer deems it technically appropriate with regard to the suspension characteristics.’;

‘10.

In the case of multiple axles, the spray-suppression system of one axle, which is not the furthest back, may not need to cover the entire width of the tread of the tyre when there is, locally, the possibility of interference between the spray-suppression system and the structure of the axles or of the suspension or of the undercarriage.’;