Subframe
The subframe must consist of steel. It is required for
attachments whose lumped loads are guided into the chassis, e. g.
for dump trucks and tractive units.
The subframe is used to distribute the forces, which are induced
punctiformly, uniformly over the entire chassis frame. For
this purpose, it should lie above the side rails and be guided to
the driver™s cab. In addition, it should be tapered in the
front section.
The various air gaps between chassis and subframes need not to be
filled. With a floor frame it is possible to fix
self-supporting attachments directly at the standard brackets.
Subframes and self-supporting attachments are to be fixed at the
chassis using all available brackets.
Mounting
Frame
The mounting frame is exclusively used for directly receiving auxiliary units, etc. Only screws are
permitted for attaching
the mounting frame at the chassis frame. The mounting frame needs not to cover the entire chassis
frame - as is the
case with
the subframe.
The mounting frames does not meet any strength requirements to
protect the chassis frame.
General
instructions on the modification of standard vehicles It is not permitted to modify spring characteristics,
brake system and steering unit. Exceptions must be approved by
Volkswagen AG before the modification is carried out. If
noise-emitting parts (e. g. engine, tyres, exhaust system, etc.)
are modified, it is required to perform noise measurements
according to EC directives. The permitted values must not be
exceeded. If the car body is to be modified in the area of the
petrol tank, it is required to dismount the tank beforehand.
Shackle attachment for the first two fastening points,
left/right, behind the driver™s cab (if required).
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