13
Quality for Professionals
6.2 Universal joint fan
Always ensure that you drive with the correct universal joint speed, in order to
prevent any blockage of the hoses.
Furthermore, check the direction of rotation of the universal joint.
Setting values:
6.3 Setting values (HG)
The fan generates an air current that conveys
the seeds via the hoses to the baffle plates.
The required air pressure and the air volume
depend to a great extent on the seed (type
and weight), the volume, working width and
speed.
It is therefore impossible to provide an exact
specification for the fan setting; this must be
determined in field trials!
ATTENTION: CAUTION: The air pressure, however, may never be set too low. If the
air pressure is too low, the seed will remain in the hoses and jam them! This would
result in a considerable amount of work because the hoses must then be removed
and emptied manually. Moreover, the dosing unit could end up grinding the seed!
An air flow that is too high can also have a negative influence on seed spreading.
As a general rule: As much air as necessary, but as little as possible!!
Therefore, the highest possible air pressure should therefore be maintained!
The air volume is limited by the scattering medium used. This must not be damaged
when bouncing off the scattering plate and also must not bounce too high in order not
to miss its targeted location.
The fan speed rises proportional to the oil flow.
Working width
1–5m
5-12m
Speed setting
540 rpm
1000 rpm
Pic.: 15
