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Available languages
Available languages
Scope of application
The rear carrier system type ProfiTech is intended to transport game and can only be used in con-
nection with a type approved tow ball with brackets (DIN 74058 / ISO 1302) suitable for mounting the
rear carrier system and which is mounted on the motor vehicle.
Some vehicle manufacturers also give approval to use rear carrier systems for the standard tow coup-
ling mounted on the vehicle. For this purpose, the permissible loads and geometries are described in
the operating instructions for the vehicles. These are decisive for the use of the rear carrier systems.
If there is no approval to use rear carrier systems for the respective tow coupling, the suitability test
must be conducted as described below. The suitability test was prepared based on § 30 of the Road
Traffic Licencing Regulations (StVZO) – instructions on the application of rear mounted carrier sys-
tems on passenger cars and caravans.
Suitability test for the tow coupling
The rear carrier system can be mounted onto a type approved tow coupling under the following con-
ditions:
1.
The ball and the tow bar must consist of one single piece.
2.
The material of the tow bar must have a minimum quality of St 52-3 (tow bars are usually made
of an St 52-3 material).
3.
The area between the ball and the fixing point cannot indicate any weakening. (welding point or
the like).
4.
The permissible drawbar load on the tow coupling (refer to nameplate on the tow coupling) must
amount to at least 70 kg.
5.
Calculation of the minimum D-value, which the tow coupling on the vehicle must have. The
permissible D-value of the tow coupling must be equal to or higher than the D-value calculated
based on the table on page 21.
To do so, the measurements K and L of the tow coupling must be determined (measuring the
vertical height K and the horizontal length L as shown in Fig. 2 below).
Fig. 2
20
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