APV AS 1200 M1, Руководство по эксплуатации

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8.7 WORKING POSITION AND SETTING THE WORKING DEPTH
The working speed has a significant effect on the intensity of
harrowing. The normal speed range is between 4 and 12
km/h, depending on the crop sensitivity and growth stage.
Optimal results are already achieved starting at a speed of
6 km/h.
The tine position can be adjusted using the pattern of holes
on each tine section (see Figure 10) and is pegged using a
pin and cotter pin.
The 6 tine rows with a total of 48 tines and a line distance of
31.25 mm per tine section ensure uniform harrow cultivation
results.
Figure 10
PLEASE NOTE!
Ideally, there should almost be a right angle (90° -
100°) between the wearing end of the tine and the
soil (see Figure 11 - centre). Because of the pre-
tensioning, the right angle is only reached while
driving.
Figure 11: An angle of 90° - 100° is ideal
The feeler wheels are an important component for ground adaptation and therefore need to be properly
adjusted. They can be moved on the frame according to the track width. The higher the position of the
feeler wheels on the frame, the greater the working depth. The tine adjustment and the extended length
of the top link have to be changed accordingly here as well.
All of the tine rows should penetrate the soil at the same depth to achieve a uniform working depth across
the entire working width.
Depending on the soil type, more load can be applied to the tines through the frame and the sections by
extending the top link. In doing so, the harrow frame and the tine section forks are tilted to the rear, and
thus apply additional pressure to the tine sections.
To avoid damage here, plastic jaws are installed on the tine sections.
The chains for the tine sections must be hooked evenly on the tine section forks and secured with a spring
cotter.
CAUTION!
When the harrow is lowered, do not allow it to push or roll back with the tractor; otherwise, the
tines and tine sections can be severely damaged.
CAUTION!
Only set the harrow on the ground when the vehicle is already in motion. If the harrow is set
down on the ground too rapidly at a standstill, there can be damage to the implement.
CAUTION!
After longer stretches of road transport or standstill, there can be differences in the hydraulic
tine adjustment due to a change in temperature of the oil in the hydraulic lines. For this reason,
tension the hydraulic tine adjustment completely and then relieve them again completely two
times. Then you can set the desired tine position. This has to be done when the implement is
lowered onto the ground.