LEMKEN Saphir 8 AutoLoad Operating Instructions Manual page 60

Even rhythm
With an even tramline rhythm, the working width of the field sprayers or fertiliser
spreaders can be larger than that of the seed drill by an even integer factor.
Example:
Sprayer
12 metres
The tramline rhythm in this example is 4. Tramlines are created if the current track
is the same as the entered tramline rhythm. However, this means that half of the
seed rows of the seed drill must be closed during the first pass. Tramlines are
created every fourth seed drill lift.
For more information, see the operating instructions of the electronic seed drill
control system.
CAUTION! Following the first pass, the shutters in the closed seed rows
must be opened again.
58
Seed drill
3 metres
Tramline rhythm
4
Operation