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Picked up a 2008 9770 and need to be able to put it in float mode for the header i am running.. i was not aware that active header float mode was an option
.. Anyone know what is needed to make this feature active .. Is it just a sensor and harness?
 

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Look at your manual CommandTouch Cab CornerPost
What header do you have, maybe will have to install a wire to make the combine no it's a John Deere header.
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Active Header Float (Optional) — Rigid Platforms



H86518-UN: Active Header Float


LEGEND:

A - Active Header Float Button


Active Header Float allows a rigid header to be operated in contact with the ground and maintain a set contact pressure. The operator selects how firmly the header contacts ground and return to that pressure automatically. A sensor measures the oil pressure within the feeder house lift cylinders and maintain that pressure as the header moves across the ground. Accuracy is greatly affected by accumulator precharge settings.

NOTE:
While moving through the field, a sensor measures pressure in the lift cylinders. The system actuates the header raise/lower solenoid valve based on oil pressure within the lift cylinders. This maintains a constant ground contact pressure for the header as the terrain changes.

System must be calibrated with each header that is used with the machine (see Calibration Procedures section).

Activation buttons 1, 2 or 3 located on the multifunction control handle are used to select one of the three different programmable header pressures. A few common modes are shown below. Many more mode combinations exist.

-: Combinations

Control Systems
Activation Button 1
Activation Button 2
Activation Button 3

Height Resume
Height Resume

Height Sensing
Height Sensing

HydraFlex
HydraFlex

Active Header Float
Active Header Float

Height Resume, Height Sensing
Height Resume
Height Sensing

Height Resume, Height Sensing w/ HydraFlex
Height Resume
Height Sensing w/ HydraFlex

Height Resume, Active Header Float
Height Resume
Active Header Float

Height Resume, Height Sensing w/ Contour-Master
Height Resume
Height Sensing w/ Contour-Master




Operation:



H87054-UN: Active Header Float


LEGEND:

A - Active Header Float Button
B - Active Header Float Pressure Symbol
C - System Activation Arrows
D - Activation Button Number
E - Pressure Setpoint
F - Header Height Control Dial
G - Bar Graph
H - Numeric Display
I - Header Raise/Lower Switch


System is active when:

Properly equipped header is connected to machine.
Engine is running.
Road transport disconnect switch is in field position.
Active Header Float mode enabled.
Header engaged.
Press Active Header Float button (A) on display to enable system. Symbol (B) will appear.

Activate Header Float by pressing activation buttons 1, 2 or 3 on multifunction control handle. System activation arrows (C) will appear indicating system is active.

Activation button number (D) in lower left corner of display indicates which activation button was selected.

To change pressure setpoint (E) of activation buttons, press desired activation button and adjust pressure using active header height control dial (F).

Turn dial towards plus (+) symbol to increase cylinder lift pressure setpoint (raise header) or towards minus (-) symbol to decrease cylinder lift pressure setpoint (lower header).

Pressure setpoint is displayed by an arrow to the left of the bar graph and actual header float pressure is displayed by bar graph (G) and actual pressure (H) is shown in the upper right side. Units: kPa for metric system and psi for English system.

Manually raising Active Header Float using header raise/lower switch (I) will deactivate system.

Press activation buttons 1, 2 or 3 to reactivate system. Header will automatically move to the preselected pressure.

System is disabled by pressing button (A).
 

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The header height resume feature does not work with a non-John Deere header, e.g. MacDon or Honeybee draper platform.
The combine is programmed to recognize only John Deere headers.
The header harness will have to be configured with a jumper wire as follows to allow the combine to recognize the header. The pin numbers and circuit codes listed below relate to the combine harness. There are two methods in which to accomplish this.

OPTION 1 : Install a jumper wire from CC436 (light green) pin # 16 to CC21 (red) (12 volts) pin # 4 in the header harness next to the connector. The only disadvantage to this method is that during diagnostic work with control unit E01 address 50, the type of header will not be identified. If identifying the type of header would be of value to the technician, then go with option 2.

OPTION 2 : Install one or more jumper wires as indicated below, in the header harness next to the connector. CC21 furnishes 12 volts power.

NON-JOHN DEERE DRAPER PLATFORM: CC436 (light green) pin # 16 to CC21 (red) and CC488 (yellow) pin # 17 to CC21 (red).

NON-JOHN DEERE PICKUP PLATFORM: CC487 (light green) pin # 28 to CC21 (red) , CC488 (yellow) pin # 17 to CC21 (red) and CC489 (orange) pin # 18 to CC21 (red).

NON-JOHN DEERE CUTTING PLATFORM: CC436 (light green) pin # 16 to CC21 (red).

NON-JOHN DEERE CORN HEAD: CC487 (light green) pin # 28 to CC21 (red).
 

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Does anyone know if this info will also relate to a 50 series also? I have a Mac Don FD70 head on a 9650 Walker combine, the head has Mac Don's version of header height control-Float Optimizer. I am trying to use the AHC but it is slow to respond. On level ground it works ok but in rolling ground it has a hard time keeping up with changes. Any info would be great. Thanks.
 
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