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6.9.1 WHEEL’S WORKING WIDTH
Depending on the planting depth, the working width of the
furrow closing wheels needs to be adjusted so that they
cover and compact the seed properly:
-
PLANTING DEPTH LESS THAN 2 CM
or when
THE
FURROW STAYS OPEN:
the shaft sleeves A (narrow) and
B (wide) need to be assembled as shown in picture 6.44.
-
PLANTING DEPTH MORE THAN 2 CM:
the shaft sleeves
A (narrow) and B (wide) need to be assembled as shown
in picture 6.45.
Fig. 6.45
Fig. 6.45
Depth > 2 cm
Depth > 2 cm
AA
BB
Fig. 6.44
Fig. 6.44
Depth < 2 cm
Depth < 2 cm
BB
AA
(*)
This adjustment is valid for standard rubber press wheels
of 1’’ and 2’’.
IMPORTANT
: BE SPECIALLY CAREFUL WHEN
DISASSEMBLING THE WHEELS, SINCE THE
THREAD HAS A DIFFERENT DIRECTION
DEPENDING ON THE SIDE TO PREVENT THE
SCREW FROM LOOSENING DURING WORK.
6.9.2 PRESSURE ONTO THE SEED
To adjust the pressure exerted by the V-shaped press wheel,
pull the fixing handle (1, Fig. 6.46) and place it at the suitable
position for the type of terrain to be planted.
Next table shows the exerted pressure depending on the
position of the fixing handle (Fig. 6.47):
1
2
3
4
5
Fig. 6.47
Fig. 6.47
Fig. 6.46
Fig. 6.46
11
POSITION
PRESSURE ( kg
f
)
1
18
2
20
3
22
4
26
5
28
ON TILLED TERRAINS, THE PRESSURE SHOULD
BE REDUCED. ON THE OTHER HAND, ON NOT
VERY TILLED TERRAINS, THE PRESSURE SHOULD
BE INCREASED.
WHEN CHANGING THE POSITION OF THE
FIXING HANDLE, PULL IT STRONGLY.
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