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Autopilot in MT755 seems lazy
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rusty1
Posted 8/24/2016 06:10 (#5486806)
Subject: Autopilot in MT755 seems lazy


South Australia
Running Trimble CFX 750 + autopilot on RTK in Challenger MT755, its always steered beautifully but just this year it seems to have got a bit "lazy" in the steering.
It still steers quite well but doesn't seem to hold the line like it used to, seems more like sub 4" accuracy not 2", even worse at higher speeds.
Have a few wiggly rows of crops from seeding where it just wandered off up to 8" and then comes back, always seemed worse when going down hill.
I usually run the aggressiveness about 85%, anything over 100 & it used to swerve side to side. Now I can put the aggressiveness up to 130% and doesn't seem to make any difference. First thought it must be the NAV playing up but wondering if its something with the tractor system, just seems in go slow mode.
Any ideas would be appreciated.

Cheers, Russ
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