
Operator’s Manual
JM 2980 PD Pantográfica
70
Fig. 073
a
b
9.2 - Quantity and seed distribution
In the following the indicative chart will be presented for distribution of
seeds.
The values are calculated and they are subject to variations, due the
factors of driving wheel sliding index, soil conditions, seed germination index
and speed in the planting operation,
In this chart is presented the quantity of seeds per linear meter,
referring to the use of each disc, changing the transmission rate through the
drive and driven gears.
Before beginning the planting, you should make a verification of the
disc acting relatively to the used seed. The machine leaves the factory
equipped with the most appropriate disc, but eventually it can have the
necessity to change the disc. To make this verification, drive the PTO and
accelerate the motor until getting the speed of 540 rpm in the PTO, and with
the purpose to establish vacuum in the distribution box, travel a certain
space in meters and verify if the distributed quantity is according to the
adjustment that was done.
In this operation the verification should be accomplished through the
visor in the distributor and if there is flaws or doubles proceed like this:
- if there are 2 or more seeds by hole, you should position the selector
lever to the - (negative) side. (Fig.073) ;
-if there are flaws, you should position the selector lever to the +
(positive) side. (Fig.073)
Will be an ideal point, where the disc will rotate with just one seed per
hole. There, should regulate all the boxes at the same position, but should
be certified when the machine is working through the visors, if doubles/
triples or flaws are existed, should proceed to the correction of the selectors.
Содержание Exacta air 2980 PD Pantografica
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