NORAC UC4+BC+HD4 Part 2 User Manual
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HEADLAND MODE COMBINED WITH SPRAY SIGNAL
(DAH09 ONLY)
If this system is using the DAH09 interface and the Norac 44658-78 interface cable a feature is available
to automatically raise and lower the boom on headland turns as the spray is switched on and off. Two
styles of control are available- one which will raise the entire boom (AutoSlant or AutoHeight), or
another mode which will raise only the wings (AutoHeight only).
To enable this feature a jumper wire must be added to carry the signal from the HARDI job computer
to the DAH09 board. A piece of insulated wire 20cm long can be used to make this connection.
1. Locate and open the job computer enclosure. This is located on at the front of the solution tank
(Commander), on the right side of the sprayer (Navigator), or on the left side of the sprayer (Alpha)
as shown in Figure 3.
Figure 3: Location of Job Computer on Commander, Navigator, and Alpha (left to right)
2. Connect the wire between the “Fluid Bypass +” terminal of the DAH09 PCB connector J9 to the job
computer PCB connection labeled “ON/OFF +”. Both connectors use a spring loaded terminal
which can be opened using a small flat screwdriver. Close the enclosure.
3. The feature must now be enabled in the UC4+ controller. To enable this option navigate to the
Remote switches screen and select either HM1 (AutoSlant and AutoHeight) or HW1 mode
(AutoHeight only). To navigate to the Remote switches menu:
a. Switch the system on, and toggle the SETUP switch until “More?” appears. Press YES.
b. Then toggle SETUP until “Other?” appears, and press YES. Now the Remote switches menu
is displayed.
With this feature enabled the system will go into Auto mode when the spray is switched on, and when
the spray is switched off the boom will raise to headland height. Similar Headland modes are available
which are triggered by tapping from the paralift up/paralift down switch. This is the HM2 mode which
lifts the entire boom (AutoHeight or AutoSlant) or HW2 mode which lifts only the wings boom
(AutoHeight only). The HM1/HW1 modes are not recommended for this type of install. For more
information on the different types of headland mode please see the Operators Manual.