54
|
6.6.3 - Closing Wheel Pressure
Each row is equipped with a pneumatic air bag to control the closing pressure on the slot. The
closing pressure can be controlled via the supplied box from the tractor cab. The recommended
working range is between 1 and 8 Bar of pressure. 8 Bar is the maximum pressure for this system.
An adjustment of 1 Bar (14.7 psi) in pressure will adjust the closing pressure by approximately 10Kg
To adjust downforce pressure:
1. Position the row unit at the working height.
2. Turn the lever clockwise to increase down
force pressure.
3. Turn the lever anti-clockwise to decrease
down force pressure.
6.6.4 - Closing Wheel Angle
The angle of the rear packing wheel can be adjusted relative to the slot to adjust the interaction
between the wheel and the soil of the slot affecting the closing of the seed furrow.
The spindle at the rear of the machine retaining the hub for the packing wheel has several
machined marks. The packing arm also has a mark in the rear housing as shown overleaf.
IMPORTANT: An excessively aggressive setting will create unnecessary mechanical
stresses on the row unit
Closing Pressure
Bar
Weight (Kg)
Soil Firmness
Soil Moisture
Soil Type
Season
0
10
Loose
Hard
Wet
Dry
Light
Heavy
Spring/Autumn
Summer/Autumn
2
30
4
50
6
70
8
90