Safety and disclaimer

AgOpenGPS is a community project. Farmers, hobbyists and developers build it in their spare time and share it for free. It is not a certified product. It has not been tested or approved to the safety standards that factory autosteer systems are built to, and no one checks how each system is built or installed.

If you build or use an AgOpenGPS system, you do so at your own risk, and you are responsible for it.

You stay in control

Autosteer only helps you steer. It does not drive the machine.
Stay in the seat, watch where you’re going, and be ready to take over at any moment, especially near people, animals, field edges, ditches, power line poles and other obstacles.
Never leave a machine unattended while autosteer is on.

Never on public roads

Turn autosteer off before leaving the field, and make sure it cannot switch on by accident while you’re on the road.
Changing a vehicle’s steering system can affect whether it is road-legal and whether your insurance covers it. Check the rules in your country before you install anything.

Before every use

Test that the steering disengages when it should: when you turn the steering wheel (detected by an encoder, pressure sensor or current sensor, if fitted) and when you use the steer switch.
Check that you can always cut power to the steering motor or valve straight away.
Do these checks again after every change to wiring, firmware or settings. Firmware or configuration changes can switch off safety functions without you noticing.

Hydraulics and electrics

Hydraulic systems hold high pressure even with the engine off. Release the pressure before working on them, and never check for leaks with your hand.
Fuse every power connection, and use wire and connectors rated for the current and for outdoor conditions.

About this documentation

These pages are written by volunteers. They may be incomplete, out of date or wrong for your machine. Check the information against your machine’s manuals, and ask on the forum if you’re unsure.
Links to suppliers and products are for information only. They are not endorsements.

No warranty

The AgOpenGPS software, firmware, hardware designs and this documentation are provided “as is”, without warranty of any kind. See each project’s licence for the full terms. To the fullest extent permitted by law, the authors and contributors are not liable for any damage, injury or loss arising from building or using an AgOpenGPS system.