Setup

SETUP - AUTOTRAC - PAGE 1

causym CAUTION: AutoTrac Universal does not steer properly in reverse for Articulated Tractors and Windrowers. Operator should not engage AutoTrac in reverse for Articulated Tractors and Windrowers.

NOTE: Set StarFire height and fore/aft before adjusting other settings.

Vehicle Type

  • Row Crop Tractor-If customer is using AutoTrac at high vehicle speeds, then they may choose sprayer as the vehicle type
  • Articulated Tractor
  • Windrower
  • Combine
  • Sprayer
  • Track Tractor
  • Forage Harvester
  • Cotton Harvester

Steer Wheel Speed Determines the maximum speed the steering wheel turns to make corrections. Higher gains will turn the steering wheel faster. Lower gains are required for vehicles with slower hydraulic systems. The maximum steering wheel speed increases with steer wheel speed settings from 20 to 190. From 190 to 200 the maximum steering wheel speed stays the same, but the rate at which the steering wheel accelerates increases. The steer wheel speed should be adjusted in increments of 10 between 20 and 190 and in increments of 2 between 190 and 200. Setting the steer wheel speed too high may cause ATU unit to disengage. Adjust the steer wheel speed as high as possible without causing disengagements of the steering wheel.

PC9619


A-Vehicle Type
B-Steer Wheel Speed
C-Acquire Sensitivity
D-Line Sensitivity Tracking
E-Line Sensitivity Heading
F-Curve Sensitivity
G-Return

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Acquire Sensitivity Determines how aggressively the vehicle acquires the track. Higher gains will result in more aggressive steering while acquiring the track. Lower gains will give smoother entry into the next track. Setting sensitivity too high may cause vehicle instability; setting too low will delay acquisition. This setting affects performance while acquiring the track only

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Line Sensitivity › Tracking Determines how aggressively ATU responds to tracking errors while the vehicle is on the track. Tracking error is the distance between the vehicle's location and the desired track. Setting this number higher will cause ATU to respond more aggressively to match the vehicle location to the desired track. Higher numbers will result in more aggressive wheel motion. Lower gains may result in reduced accuracy. This setting affects performance while on track only.

Line Sensitivity › Heading Determines how aggressively ATU responds to heading errors while the vehicle is on the track. Heading error is the difference between the vehicle's actual direction and the track direction. Setting this number higher will cause ATU to respond more aggressively to match the actual vehicle direction and track direction. Higher numbers will result in more aggressive wheel motion. Lower numbers may result in reduced accuracy. This setting affects performance while on track only.

Curve Sensitivity Determines how aggressively ATU responds to a curve in the track. If the tractor is turning inside of the curve, this number should be set lower. If the tractor is turning outside of the curve, this number should be set higher. This setting affects performance in curve track only.

PC8993
PC8994


A-Heading Error
B-Tracking Error

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PC8995

Fixed-Axle Machines
(Row Crop, Sprayers)
PC8996

Articulated Machines


A-Height
B-Fore-Aft

SETUP - AUTOTRAC - PAGE 2

StarFire Height (in.) Enter the height of the StarFire receiver. Height is measured from the ground to the top of the dome.

StarFire Fore-Aft (in.) Enter the Fore-Aft measurement. This is the distance from the fixed axle of the vehicle to the receiver. The fixed axle is the rear axle on a row crop tractor and sprayer or the front axle on an articulated tractor, windrower, combine, forage harvester, and cotton harvester. For track machines this measurement shall be 0. The receiver must be at or in front of the fixed axle for all machines except articulated tractors where the receiver needs to be behind the front axle.

PC8997

Combines, Self-Propelled Forage Harvester, Windrower, Cotton Picker

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Operator Presence Select a seat switch or operator activity monitor to detect operator presence.

Disengagement Force Determines distance operator is required to move steering wheel to disengage. High setting will require more steering wheel motion before disengagement. Use high setting when rough conditions cause frequent disengagement of AutoTrac Universal.

Steer Play Some vehicles may have excess play in their steering system which allows the steering wheel to be turned without change in the vehicle direction. This setting will control the distance that the steering wheel turns in order to take up this excess play. When ATU is placed on a machine that has excess play this setting should be used. This number should be set higher on vehicles which require greater steering wheel movement before the steering system responds. This setting should only be used on vehicles with excess play in their steering system. This number should be set to 0 on most vehicles except windrowers.

IMPORTANT: Use AutoTrac Universal only on Approved Vehicles › see www.StellarSupport.com for list of approved vehicles

It is important that the operator stay seated while vehicle is moving.

When seat switch is chosen the external seat switch must be plugged into the AutoTrac Universal wiring harness. If operator leaves the seat for more than 7 seconds AutoTrac will be disengaged.

When activity monitor is chosen AutoTrac Universal will look for operator activity every seven minutes. Operator will get a time out warning 15 seconds before AutoTrac will disengage. Pressing resume will reset activity monitor timer.

PC9620


A-StarFire Height
B-StarFire Fore-Aft
C-Operator Presence Activity Monitor
D-Disengagement Force
E-Steer Play
F--
G-Return

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