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iCON grade, Calibrating the System
3.4
Mast calibration
Content
This chapter will cover how to measure the following values:
•
Mast height
•
Blade wear
•
In-front/behind value
•
Left & Right blade offset
It will also tell how to calibrate the mast slope sensor
Before starting the
measurements
It is very important that the machine is placed correctly before starting
the measurements.
The following sensors must be calibrated before starting the measure-
ments:
•
Main fall sensor
•
Rotation sensor
•
Cross slope sensor
Park the machine at a level surface. (0% long slope and 0% cross slope).
For the best result use a hard surface, like concrete or asphalt. If this is
not possible, then make sure that the wheels and blade doesn’t sink in to
the surface material during the measurement.
Make sure the blade is at 90° to the machine (rotation is 0°).
Put the blade at the grading height ±5cm. (grading height is defined by a
line from the underside of the front wheels of the grades to the under-
side of the back wheels). This must be done because when you move the
blade up or down on a grader, the mast is tilted back or forth.
Put the blade level (0% cross slope).
If the machine is not fitted with a mast slope sensor it’s important not to
change the mast slope while operating the system. If the mast slope is
changed it will create an error in the mast height and in-front/behind
value, and a new measurement of the mast is needed.
It’s recommended to tilt the blade all the way back towards the end stop,
before doing the mast measurements. That way it’s easy to get back to
the original position if the blade has been tilted for some reason.
