OPERATOR’S MANUAL
CALIBRATIONS
Spreader trucks have a variety of material delivery systems and various
combinations of hydraulic/liquid pumps, valves, and motors. It is important
that calibrations of the system and control channels are performed to define
configuration characteristics and ensure optimum performance.
Two calibration types are recommended prior to operation:
1.
Material and Spinner System Response Calibrations
2.
Drop Test Calibration
IMPORTANT: Performing the following procedures in the order
outlined ensures the greatest accuracy.
MATERIAL AND SPINNER SYSTEM RESPONSE
CALIBRATIONS (F6)
A system response calibration adjusts the response time of the system to
the installed hydraulic and mechanical systems. Performing this calibration
determines the system response and related constants, such as Valve
Boost, PWM Offset, and AFILT, for each of the control channels.
Constants may vary slightly each time a system response calibration is
performed. Manual fine tuning for optimum performance is acceptable.
IMPORTANT: During calibrations, the truck must be running and the
RPM’s should be within the truck’s normal operating
range.
GRANULAR RESPONSE CALIBRATION
During calibration, a set of values for System Response, Valve Boost, PWM
Offset, and AFILT automatically calculate, store, and display on the
Granular Configuration screens for all granular materials.
NOTE: Liquid pre-wet and liquid
anti-ice channel setup follows
same steps as granular. Refer
to page 105 for Drop Test and
Calibration procedures.
To perform a Granular System Response Calibration:
1.
At the System Calibration screen (F6), select (1) Granular System
Response. A warning screen indicates this test activates the channel
and material will dispense.
2.
Press “R” to begin test. A series of steps display on the screen during
calculations. When finished, the System Response Done screen
displays.
3.
When the calibration is complete the results automatically record in the
proper locations. Press “C” to automatically begin drop test or press
“D” to return to the Calibration screen.
Flex4 Pro
TM
Control System
6010541 Rev A
CALIBRATIONS / 103
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