Description of Automatic Header Control System

The Automatic Header Control system compensates for uneven ground and controls the horizontal and vertical position of the header. The system continuously compares the preset position and the actual position and thus keeps the header in the desired working position. Desired values are entered by means of the rotary potentiometers. Information about the actual position come from the potentiometers on the components. The control board processes both signals and adjusts the header's position accordingly by means of the hydraulic system.

Horizontal Adjustment

There are two operating modes for the horizontal adjustment:

Manual adjustment - In this mode the hydraulic components are directly activated via the multi-function lever.

Automatic adjustment - In this mode the parallel adjustment of the header in relation to the ground is carried out via skid plates. This ensures that the distance between the header and the ground is equal on both the l.h. and r.h. sides.

Vertical Adjustment

There are four operating modes for the vertical adjustment:

Manual adjustment - In this mode the hydraulic components are directly activated via the multi-function lever.

Automatic adjustment - In this mode the parallel adjustment of the header in relation to the ground in a range of 0 to 250 mm (0 to 9.84 in.) is carried out via skid plates. This ensures that the header height is always constant.

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Header height - At heights above 250 mm (9.84 in.) the position of the header is controlled with the feeder house height potentiometer.

Float control - In this mode the pressure exerted on the ground by the header can be preset.

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NOTE: It is possible to override all the automatic modes manually.

Response Rate Control For Automatic Functions

Potentiometer (A) controls the response rate of the header raise/lower functions when in the automatic modes.

Requirements:

  • Engine running
  • Road safety switch in field position
  • Header drive enabled

Operation:

Press switch (B) to enable Header height control.

Press header height control button (C) to lower the header to the preselected position and to activate header height control. Then use response rate potentiometer (A) to adjust the rate at which header follows ground contours.

Turn clockwise - Increase response rate.

Turn counterclockwise - Decrease response rate.


A-Potentiometer, Response Rate Control (Automatic Functions)
B-Switch, Header Height Control Enabled
C-Switch, Header Height Control Activated

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Response Rate Control For Manual Functions

Potentiometer (A) controls the response rate (from 4 to 12 seconds) of the header raise/lower full range movement when in the manual mode (with or without height control function activated).

Requirements:

  • Engine running
  • Road safety switch in field position
  • Header drive enabled
  • Header height control switch (B) activated or deactivated

Operation:

Use response rate potentiometer (A) to adjust the rate at which header will react when being raised or lowered by switch (C).

Turn clockwise - Increase response rate.

Turn counterclockwise - Decrease response rate.


A-Potentiometer, Response Rate Control (Manual Functions)
B-Switch, Header Height Control Enabled
C-Header Lift Switch

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