New Holland CX720 Operator's Manual page 267

NOTE: To change only the working setpoint, press
slow up/down with header height and header lateral
flotation rocker switch 3 without confirming by
automatic header height control button 6. The system
will stay in automatic mode.
NOTE: Operating the header height control rocker
switch 3 (only fast speed up or down, no lateral tilt)
disengages the automatic mode system completely
into the transport mode (priority).
NOTE: It is also possible to switch over from one
header height to an other or even to header
compensation by using memory tumbler switch 4.
IMPORTANT: It is only possible to change the header
height position as long as they are working in the
range of the "Maximum stubble height". To change
the maximum stubble height, refer to "SECTION 2 -
CONTROLS, INSTRUMENTS AND OPERATION",
paragraph "VI:
CONFIGURATIONS", headed "11.Header".
An automatic compensation is build in when
touching the ground. After the header clears the
ground, it automatically returns to the preset
stubble height. This automatic compensation can
be adjusted with the threshold pressure. A lower
threshold pressure will limit forces on the ground
when touching the ground.
Refer to "SECTION
INSTRUMENTS AND OPERATION", paragraph
"VI: CALIBRATIONS AND CONFIGURATIONS",
headed "11.Header".
3–24
SECTION 3 – FIELD AND SITE OPERATION
CALIBRATIONS AND
2 - CONTROLS,
19