AutoFarm A5 Manual

A5 AutoSteer Closed Center Compact Valve
Custom Hardware Installation
Guidelines and Recommendations
THIS MANUAL IS FOR TRAINED AUTOFARM DEALERS ONLY
AutoFarm GPS AutoSteer
Hardware Installation Guide
PN: 602-0171-01 Rev. A

ii AutoFarm GPS AutoSteer
LEGAL DISCLAIMER
LEGAL DISCLAIMER
Note: Read and follow ALL Instructions in this manual carefully before installing or operating the AutoFarm system.
Note: Take careful note of the information in the Safety Information section and throughout this manual.
AutoFarm disclaims any liability for damage or injury that results from failure to follow the instructions and warnings set forth
herein.
Please take special note of the following warnings:
1. There is NO obstacle avoidance system included in the AutoFarm product. Therefore, users must always have an operator
on the equipment when the AutoFarm system is in use to look for any obstacles including people, animals, trees, ditches,
buildings, etc.
2. During installation of the AutoFarm system and during the Calibration and Tuning processes the vehicle's wheels turn from
side to side and the vehicle moves. Be sure that all people and obstacles are clear of the vehicle before installation, calibra-
tion and tuning, or use of the AutoFarm system.
3. Use of the AutoFarm system is NOT permitted while equipment is on roads or in public areas. Follow the instructions set
forth below for ensuring that the system is OFF before driving on roads or in public areas.

Hardware Installation Guide iii
LEGAL DISCLAIMER
Special Requirements
Tools
This list consists of special tools required to complete the installation. A complete set of common installation tools is assumed.
A workshop may be required for fabricating special brackets as required to fit the AutoFarm system components on specific
vehicle models. Hydraulic hoses must also be fabricated to connect the AutoFarm steering valve to the vehicle.
Allen Hex Key ¼” 11/16” open wrench 16mm open wrench
Allen Hex Key 3/16” 5/8” open wrench 17mm open wrench
Allen Key 5/32” 9/16” open wrench (2x) 18mm open wrench
Allen Hex Key 1/8” ½” open wrench 19mm open wrench
15/16” open wrench 7/16” open wrench 22mm open wrench
7/8” open wrench ½” 12 point ratcheting wrench 24mm open wrench
13/16” open wrench 15/16” socket wrench #1 Phillips Screwdriver
¾” open wrench 13mm open wrench #2 Phillips Screwdriver
Torque wrench Hacksaw with steel cutting blade Portable Drill
Tape measure (12ft minimum) Wire cutter small Cleaning rags
Fiberglass Cable Puller Cleaning brush 5000 psi Pressure Gauge with a Short
Hose and 1/8” Test Port Coupler that
meets the SAE J1502 standard.
Ten Foot Ladder Multimeter

iv AutoFarm GPS AutoSteer
LEGAL DISCLAIMER
Safety Information
Note: It is the responsibility of the installer to read and understand all safety alerts in this manual.
Warning Alerts
The Warning Alerts indicate potentially hazardous situations that if not avoided could result in death or serious injury. Warning
Alerts may also identify unsafe installation practices.
WARNING
To avoid electrical shock hazards, remove the roof module
from the vehicle before driving under low structures or low
electrical power lines.
WARNING
Ensure that you are in a stable position on the tractor
platform when installing or removing the roof module, so that
you do not fall.
WARNING
To prevent the vehicle from running over a person, you must
never leave the vehicle while the GPS steering system is
engaged. Do not have people around the vehicle while the
engine is running.
WARNING
High-Pressure Fluid Hazard
Read the Owner’s Manual before installation. Wear hand
and eye protection while performing hydraulic system
maintenance. Relieve hydraulic system pressure before
servicing the hydraulic system.

Hardware Installation Guide v
LEGAL DISCLAIMER
WARNING
To understand the potential hazards associated with the
operation of AutoFarm equipment read the provided
documentation before installing the GPS steering system on
a vehicle.
WARNING
A5 User Terminal: To prevent the accidental engagement of
GPS steering and loss of vehicle control while driving on
roads, shut down the A5 user terminal (exit the program)
and press down the blue Kill switch located on the top left
corner of the terminal. Never drive on roads or in public
areas with the GPS steering system turned on.
WARNING
FarmPRO User Terminal: To prevent the accidental
engagement of GPS steering and loss of vehicle control
while driving on roads, shut down the system using the
on-screen power button or the blue Kill switch located on
the bottom of the terminal. Never drive on roads or in public
areas with the GPS steering system turned on.
WARNING
Do not stand close to the wheels and do not move the
machine while you are adjusting the relief valve. Turn off
the engine, put the transmission into “park” position and
engage the parking brake before standing under or next to
the machine.

vi AutoFarm GPS AutoSteer
LEGAL DISCLAIMER
Caution Alerts
Caution Alerts indicate potentially hazardous situations that if not avoided may result in minor to moderate injury. Caution
Alerts may also identify unsafe installation practices.
CAUTION
The roof module must be removed when transporting or
driving the vehicle at speeds above 30 mph (50 km/h). The
roof module can possibly detach due to wind loads at
higher speeds.
CAUTION
The GPS steering system does not detect obstacles in the
vehicle’s path. The operator must observe the path being
driven in order to avoid obstacles.
CAUTION
When engaged, the GPS steering system controls only the
steering of the vehicle. The operator must control the speed
of the vehicle.
CAUTION
The supplied roof module locking pin or a padlock must be in
place whenever the vehicle is in operation to prevent the
roof module from releasing from its bracket.

Hardware Installation Guide vii
Important Information
Vehicle Requirements
The vehicle steering system and hydraulic system must be in good working order before installing the AutoFarm system.
Check for loose or worn parts. Drive the vehicle before installing the Autofarm system and confirm that it steers straight and
the wheels can be turned from lock to lock. Check the steering system hydraulic hoses and connections to ensure there are no
oil leaks.
The vehicle electrical system and battery must be in good working order.
We recommend that the vehicle be fully cleaned with a high pressure washer before installing the AutoFarm system. A clean
vehicle will facilitate the overall installation and cable routing and will also reduce the chance for oil contamination when the
hoses are opened. It is important to clean the area around the power beyond, front axle, frame, under the cab and behind the
rear cab shields.
Important Information
Note: Tighten all screws, bolts, nuts, hose connections and cable connections after the final assembly of the AutoFarm
Steering System on the vehicle. Follow the checklist at the end of this manual before returning the vehicle to service.
Technical Support
Contact your dealer for technical support.
AutoFarm support can be reached at (U.S./Canada):
Phone: [phone]
Contact Information
Novariant, Inc.
45700 Northport Loop East
Fremont, CA 94538, USA
Phone: [phone]
Fax: [phone]
Web: www.novariant.com
Copyright © 2009 Novariant, Inc. All Rights Reserved.

viii AutoFarm GPS AutoSteer
Contact Information

Hardware Installation Guide ix
Table of Contents
LEGAL DISCLAIMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Special Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Warning Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Caution Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vi
Vehicle Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Chapter 1 Installation Overview ....................................................................................................... 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Vehicle Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Orbitrol Closed Center Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Orbitrol Closed Center with Power Beyond Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
AutoFarm Installation Kit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Procedure Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cable Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 2 Theory of Operation .......................................................................................................11
AutoSteer Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Oil Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Right and left Steering Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Manual Override Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Load Sense. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Plugs and Orifices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Closed Center Valve Installations Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Closed Center Load Sense Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Closed Center Power Beyond Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wheel Angle Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 3 Steering Valve Installation ............................................................................................15
Steering Valve Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Valve Hose Adapter Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Valve Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mounting Hole Patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Orifice Location and Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Steering Valve Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Valve Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Bracket Mounting Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Example Bracket Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Steering Valve Installation Procedure Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

x AutoFarm GPS AutoSteer
Valve Type Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Closed Center Load Sense Orbitrol Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Closed Center Load Sense Power Beyond Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pressure Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Adjusting the AutoFarm Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Pre-Startup Hydraulic Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Chapter 4 Wheel Angle Sensor (WAS) Installation....................................................................... 39
Wheel Angle Sensor Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Wheel Angle Sensor Installation Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 5 SA Module Installation .................................................................................................. 53
Chapter 6 Roof Module Installation................................................................................................57
Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Roof Module Installation Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Chapter 7 User Terminal Installation .............................................................................................65
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Chapter 8 Main Cable Harness Installation....................................................................................71
User Terminal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Roof Module Main Harness Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Power Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Chapter 9 SA Module Cable Harness Installation .........................................................................77
Attach the Cable to the SA Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Connect the SA Module Harness to the Hydraulic Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Connect the SA Module Harness to the Wheel Angle Sensor (WAS) . . . . . . . . . . . . . . . . . . 81
Attach SA Module Cable Harness to Main Cable Harness . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Install Warning Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Chapter 10 Calibration and Tuning Notes ....................................................................................... 85
Transducer Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Starting the Calibration Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Chapter 11 Final Hardware Installation Checklist........................................................................... 93
Chapter 12 Troubleshooting .............................................................................................................95
Wheels do not turn in AutoSteer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Wheels do not turn in manual steering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Wheels turn in opposite direction in AutoSteer Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Steering is slow or sluggish in AutoSteer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Wheels only turn in one direction in AutoSteer mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Pump remains stroked up too long or when not AutoSteering Pump pressure is always high 96
Valve is noisy or chatter occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
The wheels vibrate or steering is too “twitchy” in AutoSteer mode . . . . . . . . . . . . . . . . . . . . 96
AutoSteer does not kick-out when driver turns the steering wheel . . . . . . . . . . . . . . . . . . . . . 97
AutoSteer kicks-out without turning the steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Gear pump that supplies oil for steering system is damaged . . . . . . . . . . . . . . . . . . . . . . . . . . 97