16 Water Management setup WM-Drain setup
Step 5:Tune system performance
The system gains may need to be fine tuned to reach the desired level of system performance.
1. Set the tractor hydraulics to ~70% of the maximum flow.This will allow you to fine tune the
hydraulics without adjusting any other calibration settings.
2.
Walk beside the system while operating a dry run. This allows you to see the visual cues
necessary for efficient gain adjustment. Pay close attention to the cylinder movement and note
any directional trend.
Excess movement in both directions can indicate the following:
ll Hydraulic flow is too high. It is recommended that you drop the flow by 5% and then
recheck.
l Drop both valve gains by 5% and then check for improved performance.
Excess movement in one direction can indicate:
ll Valve gain in that direction (raise or lower) is too high. Drop the corresponding valve gain
by 5% and then check for improved performance.
l Valve gain in the opposite direction (raise or lower) is too low. Raise the corresponding
valve gain by 5% and then check for improved performance.
Step 6:Set the height gain
Fine tuning the height gain and the overall valve gains are a crucial step in perfecting the precision
control of a cantilever plow with the WM-Drain system.
In the Implement tab, adjust the Height Gain values:
1. Manually drive the plow to a depth below the optimal depth of the section line that you have
surveyed and designed for this calibration run. The system will default to a Height Gain of 0.2.
2.
Move forward at the speed and RPM that you will be running the plow. When the vehicle is
moving, engage the WM-Drain system and note how quickly the system takes to get to the
design depth.
Note – The system may not go the optimal depth that you have entered at this time because the pitch
offset of this plow has not been determined. In this test, the system should drive to a consistent depth
each time it is engaged.
3.
If the system is too lazy/slow to get to depth within a reasonable distance, increase the height
gain setting by a value of 0.05. Continue to raise this value until the plow achieves depth at the
required speed.
Note – The plow may oscillate while on grade.
4.
Split the last two values you entered.
For example:
Version 9.25, Revision B FM-1000 Integrated Display User Guide 319
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