Checks before and during
sowing
The sowing quality essentially depends on the
adjustments and checks made prior to and
during sowing, as well as on regular care and
maintenance of the machine.
Before starting sowing you should therefore
carry out all maintenance and adjustment work.
Machine
¾
Have the hydraulic lines been connected
without being mixed up by mistake?
¾
Does the lighting work?
¾
Has the machine been levelled in working
position and the drilling depth correctly ad-
justed?
¾
Are the cultivation tools in usable condition?
Pneumatic system
¾
Do the seed hoses not sag and are they free
of water and deposits?
¾
Are all air lines between fan and coulters
leaktight and firmly connected?
¾
Does air flow uniformly out of all coulters?
¾
Has the air volume been set correctly on
the fan? Do the grains not bounce out of the
placementor do they remain in the hoses?
If in doubt about seed quantity, transverse dis-
tribution and fan speed, a test deposit should
be made on the surface prior to starting work.
At the same time the seed quantity can be
placed and compared with the simulation speed
at different fan rotation speeds.
NOTE
¾
Check all settings in the field and the drilling
depth before starting work and periodically.
Work instructions
Working speed
The drill can be operated at speeds up to
10 km/h.
This depends on field conditions (soil type,
harvest residues etc.), seed, seed quantity and
other factors.
NOTE
¾
Operate somewhat slower under difficult
conditions.
A "stepping effect" may occur when working at
higher working speeds.
Soil is thereby flung from one row of tines to the
seed placement of the following or preceding row
of tines. This produces an uneven seedbed and
various depths of seed coverage.
Drilling depth
Hard soil may prevent the drilling depth from
being maintained.
¾
Increase the pre-load in this case.
Headland
¾
Reduce the rotational speed just before lifting
out so that the fan output does not drop too
much and causes the hoses to block.
¾
Lift out the machine during travel.
¾
After turning on the headland position the
machine approx. 5 to 10 m in front of the seed-
bed with the appropriate fan speed. The seed
requires some time to flow from the metering
unit to the coulters.
36