AutoFarm A5 - Autosteer Does Not Kick-Out When Driver Turns the Steering Wheel; Autosteer Kicks-Out Without Turning the Steering Wheel; Gear Pump that Supplies Oil for Steering System Is Damaged

To Next Page

To Previous Page

Hardware Installation Guide 97

AutoSteer does not kick-out when driver turns the steering wheel

AutoSteer does not kick-out when driver turns the

steering wheel

• Wrong transducer calibration. Follow correct calibration process. Lower the high pressure limit.

• Bad pressure transducer. Wrong type of pressure transducer (must be 3000psi with 4-20mA current output)

• Bad SAM harness

• Wrong transducer selection in the transducer setup screen.

• Wrong hose connection to the LS Orbitrol port.

• Check for internal plug proper installation on Power Beyond installations.

AutoSteer kicks-out without turning the steering wheel

This can be considered normal if it only occurs immediately after a cold tractor is powered up in very cold conditions when the

oil is more viscous and the standby pump pressure and Return pressure are higher than normal.

• High pressure limit is set too low. Increase the transducer high pressure limit slightly.

• Bad pressure transducer or short in transducer harness

• Valve response is too “twitchy” and is causing pressure spikes in the hydraulic system. Repeat the calibration and tuning.

• Vehicle electrical system is too noisy or has grounding problems.

• Defective transducer harness on the AutoSteer valve (missing resistor inside harness). Replace short transducer harness.

• If it kicks-out spontaneously only when acquiring the line, suspect of pressure spikes or wrong transducer calibration.

• If AutoSteer kicks-out spontaneously in a random fashion while steering on the line, suspect of electrical problems.

Gear pump that supplies oil for steering system is

damaged

• Inverted pressure and tank hose connections on the AutoFarm Valve. (inverted hoses eliminate the LS relief valve function)

• Inverted LS hose connections on the AutoFarm valve in combination with a plug installed by mistake in position 13B on

either conventional or dynamic Load Sense Orbitrol hookups. Plug must not be installed in position 13B on closed center

Orbitrol installations.

• Wrong hose connection.

Wheels are wandering or do not hold position

• Bad pilot check valve on AutoSteer valve.

• Bad wheel angle sensor.

• Bad calibrations for valve (actuator) or wheel angle sensor.

• Low pump pressure. Pump is not being stroked up.

• Bad SAM harness or connectors.

Wheels keep turning only in one direction until they the hit

the stops

• Bad proportional valve.

• Spool in the proportional valve is jammed due to dirt from oil contamination.

• Short on SAM harness