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Manual No. 016-0130-076 Rev. C
17
Calibration
2.
Raise the obstacle quickly toward the sensor body (approximately 2 feet per second [60 cm/s]) until the
obstacle is within 12 inches [30 cm] of the sensor surface.
The boom should react immediately and raise at a speed matching the obstacle movement. When the
obstacle stops, the boom should overshoot the new target height by 1 foot [30 cm] or less.
3.
Adjust the AutoBoom speed value as necessary.
Sensitivity.
The AutoBoom sensitivity setting adjusts how sensitive the system will be to changes in the height
of the booms above the ground or crop canopy. During normal operation, it is recommended to set the
AutoBoom sensitivity so that AutoBoom is unresponsive to height changes between 2 to 3 inches [5 to 8
cm], but should react quickly to changes of 5 inches [13 cm] or more.
The default sensitivity value is 15. Typical sensitivity range for most implements with a 30 inch [76 cm]
spray height is between 13 to 17. If the AutoBoom sensitivity is set too high, the boom will appear unstable
or jittery as the system reacts to slight changes in the target height such as the crop canopy swaying in the
wind.
Note:
It is recommended to reduce the AutoBoom sensitivity factor for target heights less than 25 inches
[63 cm] and to increase the sensitivity factor for target heights greater than 40 inches [101 cm].
For row-crop operations, or when crop canopy is sparse or not fully covering the ground, it may be
beneficial to decrease the AutoBoom sensitivity so the booms are less reactive to sudden changes
in crop height and less likely to cause sudden movements which will diminish performance.
To adjust the AutoBoom sensitivity:
1.
Place an obstacle (hand, note pad, etc.) at ground level below one boom sensor.
2.
Raise the obstacle steadily toward the sensor body (approximately 1 foot per second [30 cm/s]) to within 12
inches [30 cm] of the sensor surface.
The boom should react immediately when the obstacle is 5 to 6 inches [12 to 15 cm] above the ground.
3.
Adjust the sensitivity value as necessary.
Stability Factor.
The stability factor allows the AutoBoom system to compensate for loose center racks by
controlling the opposite boom. When one boom is raised to reach target height, AutoBoom will raise the
opposite boom slightly to keep the implement stable and the opposing boom from dipping into crop canopy
or the dirt and to minimize chassis roll. The AutoBoom stability factor may be adjusted to provide very slight
compensation for highly stable or rigid center racks or adjusted to compensate more for looser or less
stable center racks.
The default value of 20 is recommended for implements with a rigid center rack. A value of 5 - 14 is
recommended for implements with center suspension that floats freely. Adjust this value as needed to
prevent boom oscillation.
To adjust the AutoBoom stability factor:
Note:
Adjust the stability factor after the sensitivity and speed have been set.
1.
Place an obstacle (hand, note pad, etc.) at ground level below one boom sensor.
2.
Raise the obstacle quickly toward the sensor body (approximately 2 feet per second [60 cm/s]) while
observing movement of the opposite boom.
The opposite boom should raise slightly (usually no more than 6 inches [15 cm]) at the same time as the
boom being manipulated.
3.
Adjust the stability factor as necessary:
a.
Lower the stability factor if the opposite boom does not raise enough.
b.
Raise the stability factor to make the opposite boom less reactive, allow for natural movement of the
boom, and avoid inducing chassis roll.
Note:
Too low of a stability factor (1-4) may prevent the booms from lowering. A stability factor of zero (0)
will completely disable AutoBoom stability control, making the left and right boom responses
