AutoFarm GPS AutoSteer Manual

AutoFarm GPS AutoSteer
Hardware Installation Guide
Supported Models: John Deere Sprayer 4920
PN: 602-0042-01-A

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Special Requirements
Tools
This list consists of special tools that are needed. A complete set of common installation tools is assumed. If you
find that you are using other special tools, please notify [email protected].
• Metric open wrenches
• Metric socket wrenches up to 24mm
• Soft brush
• Clean rags
• Oil collection pan (for collecting oil when hose connections are opened)
Attention
Tighten all screws, bolts, nuts, hose connections and cable connections after the final assembly of the AutoFarm
Steering System on the vehicle.
Technician Feedback
Please contact Novariant via email to [email protected] with:
• outdated pictures or instructions
• tips for other installers
• general comments or suggestions

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Table of Contents
Special Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Attention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Technician Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation Kit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation Kit Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Install Roof Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Install the Mounting Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Mount the Roof Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Install the Wheel Angle Sensor (WAS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wheel Angle Sensor Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mount Linkage Arm and Sensor Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mount the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mount the Sensor and Connect the Linkage Arms. . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjust the Sensor and Linkage Arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Install the User Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Assemble and Mount the User Terminal Bracket. . . . . . . . . . . . . . . . . . . . . . . . . 10
Mount and Adjust the User Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Install the SA Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mount the SA Module Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mount the SA Module to the Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Assemble and Mount the Hydraulic Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Install the AutoFarm Steering Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Install the Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Assemble the Hydraulic Hoses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Route the Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
AutoFarm Steering Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AutoSteer High Flow Valve Port Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Connect the Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Steering Hose Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Attach the Pressure Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Install the Main Cable Harness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Attach the Main Cable Harness to the User Terminal.. . . . . . . . . . . . . . . . . . . . . 27
Attach the Cable to the Power Supply in the Cab. . . . . . . . . . . . . . . . . . . . . . . . . 27
Attach the Main Cable Harness to the Roof Module . . . . . . . . . . . . . . . . . . . . . . 28

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Install the SA Module Cable Harness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Attach the Cable to the SA Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connect the SA Module Harness to the Hydraulic Valve . . . . . . . . . . . . . . . . . . 31
Connect the SA Module Harness to the Wheel Angle Sensor . . . . . . . . . . . . . . . 32
Attach SA Module Cable Harness to Main Cable Harness . . . . . . . . . . . . . . . . . 32
Final Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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1. Installation Overview
1.1 Installation Kit Overview
The John Deer Sprayer AutoSteer Kit contains the components shown below. (Note: Component size is not
shown to scale.)

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1.2 Installation Kit Components
Item
Number Component
1 Valve bracket
2 Hydraulic valve
3 Mounting hardware
4 Wheel Angle Sensor (WAS) unit
5 Hose kit
6 User Terminal Monitor bracket
7 Installation Guide
8 SA Module
9 Main harness
10 SAM harness
11 Roof bracket
12 SA Module bracket
13 Roof Module bolts

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2. Install Roof Module
2.1 Safety Notes
The AutoFarm system must be powered OFF when installing or removing the roof module.
The supplied locking pin or a padlock must be in place whenever the vehicle is in operation.
The roof module must be removed when transporting the vehicle at speeds above 30 m.p.h.
Make sure that you are in a stable position on the tractor platform when removing the roof module, so that
you do not fall or drop the roof module.
2.2 Install the Mounting Rail
Remove the cab roof bolts.

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Align the mounting rail to mounting holes and fasten the mounting rail to the roof using the longer bolts and
spare washers provided in the installation kit. The lettered holes and the dummy cable connector must be on
the left side of the tractor.
2.3 Mount the Roof Module
Slide the roof module into locked position. The cable connection must be on the left side of the tractor,
facing the rear.
left side of
tractor

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Make sure that the spring lock is in place.
Insert and close the locking pin through the holes in the roof module and the mounting rail. Note that a
padlock can replace the locking pin.
locked
position
locking pin

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Attach the radio modem antenna. Note: The antenna should be attached “hand tight.” Do not use any tools
to tighten the antenna. Apply a small amount of silicone grease to the o-ring seal on the antenna before
mounting on the roof module.

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3. Install the Wheel Angle Sensor (WAS)
3.1 Wheel Angle Sensor Overview
The Wheel Angle Sensor is shown in the diagram below.
linkage arms
sensor
sensor
bracket
linkage arm
bracket
cable
connector

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3.2 Mount Linkage Arm and Sensor Brackets
Mount the linkage bracket to the end of the cylinder rod using the existing bolt. Mount the wheel angle
sensor bracket to the streering cylinder using the U-Bolt.
linkage arm bracket
(side view)
sensor bracket
(side view)
sensor
bracket

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3.3 Mount the Sensor
3.4 Mount the Sensor and Connect the Linkage Arms
3.5 Adjust the Sensor and Linkage Arms
Adjust linkage arm length and/or linkage bracket position to obtain between 3200 and 3800 counts. Turn the
tractor all the way right and left to make sure the linkage arms can move without interference. Note: This
step is done after final assembly during the calibration and tuning steps.
sensor
linkage
bracket arms
linkage
bracket
sensor
bracket

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4. Install the User Terminal
4.1 Assemble and Mount the User Terminal Bracket
Remove plastic hole covers from the cab post.
Mount the bracket assembly.
mounting
bracket
location

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4.2 Mount and Adjust the User Terminal
Attach the mounting plate on the adjustable arm to the user terminal using four screws.
Remove the travel stop on the bracket assembly.
mounting
plate

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Slide the user terminal arm on to the bracket.
Replace the travel stop.

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Tighten the arm on to the bracket using an Allen key wrench supplied in the installation kit.
Remove adjustment bolt caps.

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Adjust user terminal arm tightness so the arms can be easily turned during normal tractor operation.
Replace adjustment bolt caps and adjust user terminal viewing angle. Turn the lever to loosen before
adjusting the angle.

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The complete User Terminal installation is shown in the figure below.

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5. Install the SA Module
5.1 Mount the SA Module Bracket
Mount the SA module bracket in a protected position on the Sprayer.
5.2 Mount the SA Module to the Bracket
Mount the SA Module to the bracket.
SA module
bracket