AutoTrac Universal (ATU) - StellarSupport - John Deere

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Optimizing AutoTrac Universal Performance Optimizing AutoTrac Universal Performance There are six sensitivities that can be set to optimize the performance of AutoTrac Universal. Vehicle Type Steering Speed Acquire Sensitivity (Adjust in Increments of 5) Line Sensitivity - Tracking (Adjust in Increments of 20) Row Crop Tractor 190 80 160 80 Track Tractor 190 80 160 80 Articulated Tractor 100 80 160 80 Sprayer 190 80 160 80 Combine 190 80 160 80 Windrower 190 80 160 80 Forage Harvester 190 80 160 80 Cotton Harvester 190 80 160 80 Recommended Starting Adjustments AutoTrac Universal Line Sensitivity - Heading Step 1: Optimize Steer Wheel Speed • Tune speed by operating parallel to and 1.2 m (4 ft.) off of the A—B Line. • Engage AutoTrac Universal and observe performance. • Tune steer wheel speed down until the system no longer disengages while acquiring the line. Step 2: Optimize Acquire Sensitivity Acquire Sensitivity Too Low • Tune speed by operating parallel to and 1.2 m (4 ft.) off of the A—B Line. • Engage AutoTrac Universal and observe performance. • Tune Acquire Sensitivity until machine acquires the line smoothly. PC8797 —UN—21FEB06 15-4 When operating in curves, start with the curve sensitivity equal to the optimized acquire sensitivity. These recommended settings are a good starting point for most vehicles. Each setting can be adjusted to try and optimize performance. Readjust line sensitivity - heading and line sensitivity - tracking for best results. Increase or decrease settings to change aggressiveness as desired. If system is not responsive enough, increase sensitivity settings. If desired performance is not achieved, see TROUBLESHOOTING section for more detail. OUO6050,000111C -19-05JUN09-1/1 • While tuning, adjust in increments of 10 between Steer wheel speeds 20 – 190 and in increments of 2 between 190-200. • In general, optimum performance is achieved when steer wheel speed is set at higher settings. PC8999 —UN—08MAR06 A—Desired Track—Broken Line Acquire Sensitivity Too High OUO6050,000111D -19-05JUN09-1/1 B—Actual Track—Solid Line PC8796 —UN—21FEB06 OUO6050,000111E -19-05JUN09-1/1 091411 PN=12
Step 3: Optimize Line Sensitivity Line Sensitivities Too Low A: Line Sensitivity—Tracking • Tune line sensitivity tracking while operating on the A—B line. • If machine wanders too far from the A—B line adjust line sensitivity – tracking higher. • If machine becomes unstable around A—B line adjust line sensitivity – tracking lower. B: Line Sensitivity—Heading • Tune line sensitivity heading while operating on the A—B line. • If the front of the machine wanders too far from the track direction adjust line sensitivity – heading higher. • If machine becomes unstable adjust line sensitivity – heading lower. Curve Sensitivity Curve Sensitivity Too Low • Tune Curve Sensitivity while operating in Curve Track • If vehicle turns outside of the curve adjust sensitivity higher • If vehicle turns inside of the curve adjust sensitivity lower. Steer Play • Steer Play is only used for vehicles that have excess play in the steering system. • If overall performance is unacceptable due to high play in the steering system, adjust steer-play setting higher until effects of loose steering system are minimized. AutoTrac Universal PC8794 —UN—08MAR06 PC8944 —UN—21FEB06 15-5 PC8999 —UN—08MAR06 A—Desired Track—Broken Line Line Sensitivities Too High B—Actual Track—Solid Line NOTE: Line Sensitivities work together – If both are set too high the vehicle can become unstable. If both are set too low, the vehicle can wander around the A—B line PC8999 —UN—08MAR06 A—Desired Track—Broken Line Curve Sensitivity Too High PC8795 —UN—08MAR06 OUO6050,000111F -19-05JUN09-1/1 B—Actual Track—Solid Line PC8943 —UN—21FEB06 OUO6050,0001120 -19-02JUN09-1/1 • If Steer Play is set too high, system can become unstable. Find the combination of values that works best for the vehicle. OUO6050,0001121 -19-05JUN09-1/1 091411 PN=13
Page 1 and 2: AutoTrac Universal (ATU) OPERATOR'S
Page 3 and 4: Contents Page Safety Recognize Safe
Page 5 and 6: Recognize Safety Information This i
Page 7 and 8: Operate Guidance Systems Safely Do
Page 9 and 10: Accuracy IMPORTANT: The AutoTrac sy
Page 11: Necessary Conditions for Activating
Page 15 and 16: Troubleshooting Symptom Problem Sol
Page 17 and 18: Troubleshooting Vehicle automation
Page 19 and 20: Deactivating System CAUTION: Always
Page 21 and 22: Line Sensitivity - Heading Determin
Page 23 and 24: StarFire Height and Fore-Aft Fixed-
Page 25 and 26: Diagnostic Readings A—View Drop-D
Page 27 and 28: Guidance Warnings Troubleshooting
Page 29 and 30: Trouble Code Pop-Up Boxes—ATU CAU
Page 31 and 32: Deactivating System CAUTION: Always
Page 33 and 34: Vehicle Type Vehicle settings can b
Page 35 and 36: AutoTrac Settings, Page 2 NOTE: Be
Page 37 and 38: Diagnostic Readings Read the latest
Page 39 and 40: Troubleshooting—GS2 1800 Display
Page 41 and 42: Start-up Screen Each time a machine
Page 43 and 44: Activating System CAUTION: While Au
Page 45 and 46: Setup SETUP - AUTOTRAC - PAGE 1 CAU
Page 47 and 48: Setup, Page 2 A—StarFire Height B
Page 49 and 50: Steering Asymmetry Value Calculatio
Page 51 and 52: Motor Test and AutoTrac Information
Page 53 and 54: Warning Screens Troubleshooting—O
Page 55 and 56: Display Diagnostic Trouble Code Lis
Page 57 and 58: Position Receiver Troubleshooting
Page 59 and 60: Warning Screens Warning Screens War
Page 61 and 62: A Index Page AutoTrac Activating Sy
Page 63 and 64:
Technical Information John Deere Se
Page 65 and 66:
John Deere Is At Your Service John
Page 67 and 68:
John Deere Service Keeps You On Job
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AutoTrac Universal (ATU) - StellarSupport - John Deere

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