Forch 5439 42 Mode D'emploi page 39

* for hoists distance to front edge hoists
2. current version in VkBl. 1981, p.392
3. In such cases where the testing on the alignment surfaces is not possible due to a
special kind or type of vehicle, the alignment surfaces (the drive lanes) have to be adjusted
in an adequate way.
4.1.2 Requirements for the alignment surfaces / drive lanes for the motor vehicle
4
The alignment surfaces / drive lanes have to be designed in a way that the following
conditions are respected:
Unevenness
The tolerable unevenness of the alignment surfaces / drive lanes is shown by the following
image:
The values stated indicate the total difference between the individual values (maximum
value at 2m = 5 mm, example for two possible combinations for individual values
Min = 0 mm and Max = 5 mm or Min = -2,5 mm and Max = +2,5 mm).
Stability
The stability of the drive lanes has to ensure permanently that the above-mentioned
consistency requirements are also met in case of maximum charge.