KUHN AXERA-M, Руководство оператора

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11. Valuable tips for precision spreading
We would particularly emphasize that physical characteristics of fertilizers can vary,
even within the same type and brand, due to differences in size of granules, density,
surface texture, specific weight and quality of granules, etc.
These variations can influence spreading characteristics quite markedly resulting in
differences in the fertilizer application rates as well as changes in spread patterns
predicted in the spreading charts.
The data provided in the spreading charts can only be used as a guideline. However,
through careful continued testing these values are more accurate than settings made
by rule of thumb.
We suggest the use of only quality fertilizer from well-known suppliers, preferably
those fertilizers listed in the spreading charts. If you need to use fertilizers not listed,
please contact us.
In spite of the careful manufacture of your spreader, even with correct usage we can-
not completely rule out variations in output or total output failure. Such circum-
stances can be caused by the following :
♦
Varying consistency and flow characteristics of fertilizer or seed (e.g. variations of
particle sizes, coatings, density, shape, causticity).
♦
Lumpy moist fertilizer.
♦
Wind drift.
♦
Blockage or bridging (e.g. caused by foreign particles, bits of bag, moist fertilizer,
etc).
♦
Undulating fields.
♦
Wear on components (e.g. agitator, vanes, metering outlets).
♦
Defects arising from external influences.
♦
Lack of cleaning or prevention against corrosion.
♦
Incorrect input speed from the PTO or incorrect tractor speed.
♦
Not carrying out calibration check.
♦
Incorrect setting of fertilizer spreader.
♦
3-point linkage not adequately restrained from side-to-side movement, or spreader
not exactly at 90° to direction of travel, or unit not exactly horizontal
Before each field operation, as well as during operation, check that the fertilizer
spreader is functioning correctly and that the correct application rate and spread pat-
tern is being achieved at all times.
Spreading Urea:
This highly concentrated nitrogen fertilizer has a wide variation of quality and parti-
cle sizes, due to the great number of importers handling this product. It is, therefore,
essential to recalibrate the unit every time this fertilizer is used. Also note that Urea
is very susceptible to wind variations.
Pay special attention when setting the spreader. Even a very small error in setting can
result in a large change in spread pattern.
We must stress that no liability can be accepted for consequential losses or damages
due to spreading errors.
Note: Particularly hard fertilizer material such as Thomas potash and Kiserit will in-
crease the wear rate of the disc vanes.