
The auto header height control (AHHC) system’s stability
is affected by hydraulic
fl
ow rates. Ensure that the header
raise (A) and header lower (B) adjustable restrictors in
the hydraulic valve block are adjusted so that it takes
approximately six seconds to raise the header from
ground level to maximum height (hydraulic cylinders fully
extended), and approximately six seconds to lower the
header from maximum height to ground level.
If there is too much header movement (for example,
hunting) when the header is on the ground, adjust the
lower rate to a slower rate of drop: seven or eight seconds.
NOTE:
Make this adjustment with the hydraulic system at normal
operating temperature (130°F [54.4°C]) and the engine
running at full throttle.
Figure 3.193: Header Raise and Lower
Adjustable Restrictors
Adjusting Ground Pressure (Gleaner R65/R66/R75/R76 and S Series)
NOTE:
Changes may have been made to the combine controls or display since this document was published. Refer to
the combine operator’s manual for updates.
To adjust header height, ensure the header is in auto
header height control (AHHC) mode. This is indicated by
the AUTO MODE LED light (A) displaying a continuous,
solid light. The header will lower to the height (ground
pressure) corresponding to the position selected with the
height control knob (B).
Turn the knob counterclockwise for minimum ground
pressure, and clockwise for maximum ground pressure.
Figure 3.194: AHHC Console
147831
137
Revision A
Содержание FlexDraper FD1 Series
Страница 2: ...FD1 Series FlexDraper Header for Combines Published April 2016 ...
Страница 3: ...Declaration of Conformity 147831 i Revision A ...
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Страница 40: ...PRODUCT OVERVIEW Figure 2 1 Header Width 147831 22 Revision A ...
Страница 189: ...OPERATION Figure 3 260 Flow Chart for Setting the Sensitivity of the Float Optimizer 147831 171 Revision A ...
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