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BASIC SWATHING
The Smartbar has two basic parallel swath types: Back and Forth (BF) and Snap-to-Swath
(SNP). With each pattern you must first mark point A and then point B. This defines the A-B
line, which is swath number 1. Swath number 2 will be in the direction (from the A-B line) you
will work the field. If Direction (DIR) is configured for Auto (AUT), the direction to work the field
is established when the machine turns past 75
o
after marking point B. If Direction (DIR) is
configured for Manual (MAN), the operator presses the SELECT button, after turning from
marking the B point, to set the direction to work the field. DIR may be AUT or MAN for both BF
and SNP. The DIR default setting is AUT for both BF and SNP.
Once the A-B line is marked and the direction to work the field is established, then the light
bar knows where the swaths are for that field based on the swath width you specified when
configuring the Smartbar. The swaths are numbered 1, 2, 3... with the A-B line being swath 1.
Swaths on the opposite side of the A-B line than you are working are numbered -1, -2, -3, ....
For example, if you are using BF and your current swath number is 1, pressing the Down
button will decrement the current swath to -1. Pressing Down again will decrement the current
swath to -2. The offset distance is always relative to the current swath number.
The offset distance from the current swath is shown on the right alphanumeric display. The
offset distance LED’s are all off when you are on swath, and come on sequentially as you
leave the swath.
The offset angle LED’s are all off when you are parallel to the current swath, and come on
sequentially as your angle to the current swath increases.
IMPORTANT:
When traveling perpendicular to the current swath line, the direction you should turn to
correct is indeterminate. If the current Course Over Ground alignment to the swath
line is greater than about 70
o
, the angle and offset LED’s are displayed in special
manner. This special display aids in determining the location and orientation of the
swath line when the direction is close to perpendicular and the intended direction along
the swath line is indeterminate. See the section “Special Offset and Angle Displays”.
When swathing, all Smartbar GPS status LED’s should be out, indicating the GPS receiver is
operating properly. If one or two of the status LED’s are on, the accuracy of the light bar will be
impaired. If all status LED’s are on, swathing is either unreliable or non-functional.
The Guidance Status LED’s (refer to diagram item D on page 4) are used as follows:
The center LED is on if no offset error LED’s are on.
The top and bottom center LED’s are usually on when you are swathing (the
A-B line has been established), but change states when you are either ap-
proaching or within a headlands area. When the LED’s are on, it is okay to
spray. When the LED’s are off, you have entered a headland area, which has
already been sprayed. The top and bottom LED’s are also used when saving
and returning to a position. See ‘Headlands’ and ‘Saving Your Present
Position’.
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