4 - System setup
4.6
Check LookAhead pressure regulation at speed change
1. Press ® button for pressure regulation on the HC 6400. Confirm
that check mark icon appears in upper left corner of the display.
2. Go to menu [4.6 speed simulation]. Key in e.g. 6 mph and press #
to use the value. Stay in this menu (i.e. do not press ESC to leave).
3. Start PTO at nominal RPM.
4. Press main ON/OFF at the grip to ON, to open all sections. Check
that the pressure regulation valve rotates and that pressure
stabilizes at 70 psi.
5. In menu [4.6 speed simulation]. Key in e.g. 4 mph and press # to
use value. Check that pressure regulation valve rotates and that
pressure stabilizes at 30 psi.
6. After pressure regulation valve is stable (i.e. does not
rotate/adjust), wait 30 seconds before proceeding.
7. Press main ON/OFF at the grip to OFF, to close all sections.
8. Go to menu [4.6 speed simulation]. Key in e.g. 6 mph and press #
to use the value. Check if pressure regulation valve rotates
counterclockwise (to reduce pressure) immediately after pressing
#. If pressure regulation valve rotates when all sections are
closed, then LookAhead is activated and works correctly.
9. Press main ON/OFF at the grip to ON, to open all sections. After a
delay of approx. 3 seconds, the pressure regulation valve begins
rotating to adjust actual flow to set flow.
Open/close the Main On/off = No movement
Rotation counterclockwise (A) Rotation clockwise (B)
Decreasing pressure Increasing pressure
Lower boom flow Higher boom flow
Closing section Opening section
Decreasing speed Increasing speed
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