4
P/N 016-9001-022 Rev. D 45
TROUBLESHOOTING
SmarTrax will not engage by
pressing the foot/enable switch.
The node is not communicating
properly.
Check the LEDs on the node to
ensure proper communication.
There is an error in the SmarTrax
system.
Identify and correct system errors.
The steer switch override is active.
Test the voltage (12V) and ground
at the disengage switch and
pressure transducers.
Adjust the disengage settings and/
or pressure switch knob.
• Replace the pressure switch.
• Replace the flow disengage
switch.
• Replace the transducer.
The foot/enable switch cable is not
connected or is faulty.
Test the voltage (12V) and ground
on the foot/enable switch cable
connection, using a jumper wire to
simulate foot/enable switch
function.
SmarTrax will not disengage when
the steering wheel is turned.
The Disengage Setting is incorrect.
Adjust the Disengage Setting in
the field computer.
The knob on the pressure switch is
turned in too far. (SmarTrax
hydraulic valve part numbers 334-
0003-056 through 334-0003-079
only)
Turn the knob on the pressure
switch out.
The pressure disengage switch has
failed.
Replace the faulty pressure
disengage switch.
SmarTrax will disengage only when
the steering wheel is turned one
way.
The flow disengage switch has
failed on one side.
Replace the faulty flow disengage
switch.
The wheels turn the wrong way
when the steering wheel is turned.
The hydraulic hose connections
are reversed.
Reverse the left and right steering
hoses on the machine’s steering
orbital.
Valve makes noise in stand-by
mode.
The pressure relief adjustment on
the SmarTrax valve is set
incorrectly.
Adjust the relief valve on the
SmarTrax valve until the noise
stops.
Valve makes noise all of the time.
The load sense orifice in the valve
is plugged.
Inspect the load sense orifice for
blockage.
The incorrect SmarTrax valve is
installed.
Install the SmarTrax hydraulic valve
recommended for the machine
being used.
Problem Possible Cause Corrective Action
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