Tume Nova 3000 Star, Руководство пользователя

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14. FIELD TEST
A field test is absolutely the most accurate testing format of feeding amount. If the field test is
carried out on the field which is to be sown and on a prepared seedbed, conditions equivalent to
sowing are accurately established. A field test can be done both to seed and fertilizer.
Carrying out the field test:
•
Adjust the equipment according to the calibration guidelines
•
Measure a drive corresponding to one are sown area, which based on machine type
is:
NOVA COMBI 3000 33,3 m
NOVA COMBI 4000 25 m
•
Drive outside the test distance, about 10 meters, with the machine in working
position so that each sowing chamber is feeding out the seeds
•
Empty the contents of test sowing trays
•
Drive a distance in accordance with the table above; the machine lowered to the
sowing position with a normal sowing speed.
•
Weigh the seeds in test sowing trays and/or the fertilizers and multiply the weighing
results with 100 to get the resulting seed amount in kg/ha.
•
If verifications are needed, carry these out according to the calibration instructions
15. WORKING DEPTH ADJUSTMENT/ COULTER WEIGHING
In Tume Nova Combi the seeds and fertilizers are sown through the same coulters. Fertilizer is
guided to the ground into the larger groove, this is done by the bigger disc, and feed to the upper
groove is done by the smaller disc.
Coulters have been installed in sledges, where the adjusting feeler wheels in the front measure
the coulter working depth. Each feeler wheel determines the working depth of the two coulters in
the sledge. When installing the feeler wheel adjustment hooks into the lowest notches, the
maximum working widths is achieved. In the highest notches can be again sown almost to the
field surface.
Fig 17. Seeding depth adjustment.
The desired coulter emphasis is adjusted by changing the machine container height: When the
machine has been lowered almost to its lowest position, the tension springs creating the coulter