Norac UC4+ - ReTune

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6.2 RETUNE
From time to time it may be necessary to recalibrate (ReTune) the UC4+
electronics to your sprayer’s hydraulics. Examples of such times are:
• 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 run the ReTune procedure 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
ReTune.
Follow Section 6.1.1 to 6.1.3 (level booms, working RPM, etc.) before
beginning the ReTune. Navigate to the "ReTune?" menu prompt in the
SETUP menu and confirm with the "AUTO (YES)" switch. The procedure
described in the Automatic System Setup, starting at 6.1.7 will begin.
NOTE: The booms are to be leveled at a normal working height when
ReTune starts – it is not necessary to set them to 35 inches. The
35 inch height is only required during the Automatic/Manual
System Setup.