USE AND MAINTENANCE
20
ENGLISH
cod. 19501310
g
3.2 PREPARATIONS FOR SOWING
To obtain the most correct investment of the seeds per hectare
(kg/Ha) the distribution parts must be adjusted properly: the gear-
box, the feelers, rollers and sliding doors. Use the sowing table
to find the relevant instructions (refer to the sowing test chapter
3.2.13). To proceed, the values to follow are: the type of seed
(wheat, barley, etc.), the amount in kg to be distributed per hectare
and the distance between the rows to be sowed (3.2.12).
3.2.1 SPEED CHANGE GEAR
The gear shift is located on the right side of the seeder and
receives motion from the drive wheel. The gear shift is used to
change speed to the seed distribution units through the
adjustment lever which is calibrated on a continuous scale of 1
to 60 (Fig. 7). Loosen the knob, move the lever to bottom of scale
«0 » (zero) and then set it to the value indicated. Lock it by tightening
the knob.
3.2.2 FEELER ADJUSTMENT
The feeler adjustment lever (Fig. 8) is positioned on the left side
of the machine and works according to a graduated scale that
runs from 0 - 10 settings. The lever must be set to the number
indicated by the sowing table on the basis of the type of seed to
be sown. If the feelers (B Fig. 9) are correctly positioned, they
assure a fluid and constant distribution of the seeds.
ATTENTION: The lever positioned beyond the maximum
opening, causes the discharge of the seeds from the hopper.
For best seeding results, periodically check the position of the
feeler pins (B): adjust the distance between the feeler and the
distributor roller (A) by means of the nut (D) to 0,5 ÷ 1 mm (Fig. 9).
3.2.3 DISTRIBOTOR ROLLER ADJUSTMENT
The most appropriate type of seed distributor roller must be
selected prior to sowing on the basis of the type of seed being
drilled (A Fig. 9). The machine is fitted with rollers for small,
medium and large seeds. Select the type of distributing roller
according to the information given in Table. Which is selected by
inserting the key supplied (Fig. 10) into the slot on the left side of
the roller and push the drag retainer all the way out. Perform the
a.m. operation in inverse order to retum the roller to its initial
position.
3.2.4 BLADE ADJUSTMENT
The sliding doors (C Fig. 9) for the discharging of the seeds from
the hopper, have three adjustment positions (Fig. 11):
1)
Position 0: when the blade is completely lowered it closes
the seed discharge slot completely and shuts out the
distributor roller to which seeds no longer flow.
2)
Position 1: by raising the sliding doors to the first setting, the
medium aperture position indicated in the enclosed table
forsmall seeds is obtained because the discharge slot
comes to be only partially opened.
3)
Position 2: this is the position of maximum aperture that is
indicated for medium and large-sized seeds.
fig. 11
fig. 10
fig. 7
fig. 8
1
10
1
10
fig. 9
A
C
B
D
0,5
÷1mm
C
Summary of Contents for Direttissima 250
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