7
3.7 PERFORMING A RETUNE
NOTE: Sensors are not adjusted or calibrated by
performing a ReTune. A retune recalibrates the hydraulic valve
parameters.
Perform a system return when:
When a hydraulic solenoid valve is changed.
When the hydraulic pump is changed or adjusted.
When the normal working temperature of the hydraulic oil has shifted
significantly from when the system was previously calibrated.
If you are running a pull type sprayer and use different tractors to
operate the sprayer, you should perform a ReTune each time the
tractor is changed.
If you have a flow control for the boom hydraulics, set it prior to
tuning. If you change the flow setting by more than 20 percent, you
should perform a ReTune.
Before starting a ReTune:
Prepare the equipment and select an appropriate location (refer to the
UC4 Technical Manual for more details)
Performing a ReTune:
Navigate to the "
ReTune?" menu prompt in the SETUP menu.
To start a ReTune, confirm with the "AUTO (YES)" switch.
Follow the instructions on the LCD screen.
NOTE: If an error occurs during a ReTune, refer to Section 4 and 5.
If the solution is not listed, contact NORAC. During the
ReTune, progress will be displayed on the LCD screen. Please
record these displayed messages before or while the error
occurs. Providing us with these messages will help determine
the problem.
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