horsch Avatar 12.20 SW, Operating Instructions Manual

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Distributor
Two distributor towers are installed for seed or
fertiliser distribution.
NOTE
All distributor components must be leak tight.
Even slightest leaks and air losses will cause
uneven distribution.
2
1
Distributor tower
1
Seed flow sensors
2 Tram line valves
Valves for tram line control
The distributor is equipped with valves for the
tram line control.
The arrangement depends on the working width,
the tram line rhythm, the track width of the spray-
ing and spreading machine and the number of
valves per track.
With the Avatar 3/4 SD, no more than 6 wings
can be used because of the pneumatic attach-
ment.
The valve function can be checked by examin-
ing the air flow on the seed coulters or the seed
placement on the surface.
The valves have a small identification mark on
the underside of the shaft, which shows the
position of the valves.
This enables checking the rotary motion of the
valve and its end position.
Marking of tram line valve (position open )
If the tram line distribution box is equipped with
a track width change-over, the track width must
only be changed when the valves are open.
This can be checked on the terminal (no tram
line must be switched) or by checking the marks
on the valves.
Seed flow monitoring
The seed flow sensors enable the monitoring of
up to 120 seed and fertiliser hoses.
The sensors are connected in series, and the
numbers indicate the order.
In case of an alarm, these sensor numbers help
when troubleshooting the hoses.
If the monitored seed hoses are also fitted with
valves for the tram line control, these numbers
must also be entered in a list in the terminal
menu for tram line rhythm - see E-Manager in-
structions.
Calibration
CAUTION
Risk of crushing on the metering unit
¾
Do not reach into the rotating metering unit.
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