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User Guide
Gyro Diagnostic
This diagnostic shows the relative heading of the machine. The gyro senses the machine
turning and calculates the heading. When the diagnostic starts, the heading is reset to 0°.
There is a compass-style instrument that points to the current heading and a reading of the
heading in degrees and hundredths of a degree "A." A negative heading means the machine is
pointed slightly right of center, a positive heading means the machine is pointed slightly left of
center.
A
E
D
C
G
F
B
There are two buttons to slowly rotate the machine to test the gyro. Pressing the left arrow "B"
will rotate the machine in a clockwise direction. Pressing the right arrow "C" will rotate the
machine in a counterclockwise direction. To stop rotating, press the arrow button opposite of
the direction of rotation.
There are two parameters for calibrating a gyro. One is the Scale Factor "D" and is set at the
factory. It does not normally need to be changed. Values normally range from 18500 to 20500.
The other parameter is the Center value "E." This is computed automatically by the machine
every time there is no motion for at least 5 seconds. This value is ideally 4192, but will change
based on variations in gyro hardware, temperature changes, and other factors. If this number is
more then 5000 or less then 3000, there is likely a problem with the gyro and it may need to be
replaced.
Touch the reset button "F" to set the heading to 0.00° during the diagnostic.
To exit the diagnostic and return to the Diagnostics main screen, touch "Return "G."
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