Rainger Linear 37
OPERATION
Establishing Wheel Tracks
Wheel Tracks
It is important to establish proper wheel tracks for a linear machine. The methods described in this section will
help minimize deep wheel tracks and allow the system to steer as required.
• Wheel tracks affect the linear machine’s ability to steer.
• Ensure correct tire pressure to help reduce the possibility of deep wheel tracks.
• Wheel track depth:
» Regular drive units must not exceed 4 in (100 mm). See Figure 37-1.
» Single span swing around drive unit must not exceed 2 in (50 mm). See Figure 37-1.
» Do not allow wheel tracks at the cart. See Figure 37-1.
• Wheel track depth can be controlled by using track fillers, tillers, discs, or flotation tires.
Direction of Travel
The linear system should typically travel perpendicu-
lar to crop rows that are up to 4 in (100 mm) deep.
However, if the crop row exceeds 4 in (100 mm) in
depth, the direction of travel should be parallel to the
crop rows.
The linear system should not cross furrows or rows
at a shallow angle.
Establishing Perpendicular Wheel Tracks
Use the following method to establish perpendicular
wheel tracks.
1. Plant the crop perpendicular to the linear system.
See Figure 37-2.
2. Make the first pass across the field depending on
your tillage method.
• If using a conservation tillage method, the first
pass across the field should be DRY and at a
100% percentage timer setting.
• If using conventional tillage methods, the first
pass across the field should be WET and at a
100% percentage timer setting.
3. The second pass should be at the 80 - 100%
percentage timer setting while applying water.
4. Subsequent passes can be at any desired set-
ting. However, for wheel tracks, making frequent
light applications of water is better than making
fewer heavy applications of water.
Water is not applied the same way as with a side
roll, traveling gun, or surface irrigation due to the
ease in making applications. Typically application
depths would not exceed 1.0 inches (25 mm).
1
2
3
Figure 37-1 1. Wheel track
2. Linear drive unit
3. Maximum Depth
1
2
3
Figure 37-2 Perpendicular Travel
1. Linear System
2. Crop Rows
3. Wheel Track
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