LM2-C General Operation
The power button...
There are five buttons on the LevelMaster 2C. Press the power button briefly to turn it on, and
the button must be pushed and held for about 2 seconds to turn the system off.
When the control box is turned on, its display will show the
product name and the current software version. If a valid sensor is
found on the data line, the LED display will give an indication of the
sensor’s tilt angle.
A sensor is valid only if you have “OK’d” its serial number
elsewhere in the setup procedure. If no valid sensor is found, a
distinctive rolling pattern is seen in the LED display.
After the software version has been displayed for about 5 seconds,
the display will show the last-used slope if there is a valid sensor
attached.
Normal operation is as simple as adjusting the slope with the up
and down arrow buttons or the “Flip” button, and toggling between
automatic (driven valves) and manual modes.
The rotation error compensator.
LevelMaster 2-C Blade control boxes have been equipped with the
optional blade rotation emulator. This allows the operator to inform
the control box about the angle between the blade and the direction
in which the machine is moving. With this information the control
box will calculate and display the proper angle in real time.
This is what the screen displays when this option is enabled and
the parameters entered make sense. Otherwise, standard screen is
displayed and the box assumes that the blade is perpendicular to the
direction of the grader - this would correspond to a rotation of 0°.
The Up/Down buttons...
The two buttons on the right are used to change any parameter that appears in the display. In
the normal operation mode, these two buttons will change the desired slope. The slope is limited to
±25.0%.
The Flip button...
The slope can quickly be changed from right to left, or front to back, by pushing the “Flip”
button. The numeric value of the slope does not change, but the direction does. If the display showed
“<-20.0%”, pushing the “Flip” button will change it to “20.0%->”.
The Automatic/Manual button...
The button below the left-bottom of the display changes the LevelMaster 2C between
automatic and manual mode when the slope display is showing. This button also gains special
functions with respect to some of the display screens shown below.
The Menu System...
To enter the calibration and set up menu system, put the system in “Manual”, and push both
the “Manual” and “Flip” buttons at the same time. Subsequent menu items appear after pushing the
“Next” button. If no button is pushed for about 20 seconds, the system will return to the “Slope”
page.
LevelMaster 2C Instructions v0.5 (Grader) (8/7/03)
page 4 of 14
Slope <-20.0%
Automatic <Flip>
LevelMaster 2C
v4.4 8 X 2003
Slope Sensor ??
Manual <Flip>
Slope <-20.0%
Manual <Flip>
Rot 30° <-20.0%
Manual <Flip>
