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3.20 Trailer Couplings

General information

The attachment of the trailer coupling must correspond to the specific directives of the relevant country. In the Federal Republic of Germany, standard DIN 74 050 has to be complied with.
Consider free-space dimensions*. In the Federal Republic of Germany, standard DIN 74.058 has to be complied with.
If deviations from the German regulations for the prevention of industrial accidents (UVV) are necessary, it is required in the Federal Republic of Germany to request an import certificate ["Unbedenklichkeitsbescheinigung"] from: Berufsgenossenschaft für Fahrzeughaltung [German Trade Co-operative Association for Matters Associated with Car Owning], 22757 Hamburg (phone +49 [0] 40/38 10 91).
If trailer couplings are to be installed subsequently, only products which have been approved by us and original Volkswagen end cross-members may be used. Attachment points are available at our end cross-member and/or side rail.
The size of the trailer coupling is defined according to the D-value.

The size of the trailer coupling is defined according to the D-value

D = control-shaft value

mk = permitted total weight of the tractor (motor car) in t

mA = permitted total weight of the trailer in t

g = 9,80665 m/s²

The permitted trailing load can be taken from the valid sales documents or the guide "Trailer Operation". In order to permit the trailers being exchanged in transborder traffic, the distance dimension, x, must not exceed 300 mm.

* If the trailer is extremely low lying or if a special attachment is extremely overhanging, it may be prohibited to use a trailer coupling.

Mouth clutch (can be ordered ex works under PR-No.1D5)

Max. distance between the middle of clutch bolt of the trailer coupling and attachment end: 420 mm. Keep clearances.
In special cases, it is permitted to exceed the distance dimension of 420 mm: Max. distance 650 mm for vehicles with tiltable attachments or rear attachments. Max. distance 1,320 mm, if the headroom between lane and the lower attachment edge is at 1,150 mm. A suitable remote control for the clutch must be available. The safe actuation of the clutch must not be impaired.

Spherical coupler (can be ordered ex works under PR-No.1D1)

Keep clearances.
The installation is only permitted at approved trailing supports.
It is not permitted to perform the installation only at the underrun protection. Modifications of the underrun protection must be arranged with the responsible testing and research laboratory (in Germany: TÜV).

Nota: Reservado el derecho a errores y modificaciones tÈcnicas. Tiene validez sobre la actualidad de los datos de la directrices de estructuras exclusivamente la versiÛn electrÛnica de la directrices de estructuras.

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