Seed Hawk AIRCART 2013 - Manual (Page 68)

SEED HAWK
®
AIRCART OPERATOR’S MANUAL 63
7.4.5 SHANK PRESSURE
The hydraulic down pressure applied to the opener shanks is controlled by a closed loop system
that allows you to enter the desired operating down pressure. You can enter the amount of
down pressure the system should apply on the monitor. The monitor controls a down pressure
valve that maintains the pressure setting on the opener shanks through the control module. A
pressure sensor measures the actual hydraulic pressure and feeds it back to the control
module. The control module adjusts the down pressure valve to maintain the system setting. As
the openers move up and down with the terrain constant force is applied to all equally.
1. To set and change the shank pressure, press any
soft key to bring up the soft key menu and press
“Shank”.
2. A horizontal bar graph display will come up on the
screen. Press “Enter” to activate the adjustment and
then rotate the spinner knob to increase or decrease
the system pressure setting.
3. Press “Enter” again to save the setting. When
seeding this screen will show the system pressure
setting and a triangular shaped icon will move up and
down the bar graph to show the measured system pressure as compared to the set pressure.