| NOTICE |
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Fasten the seatbelt securely. |
Connections
The AccuGrade System requires each one of the following sensors:
- GPS/GNSS Receiver
- Cables
Refer to the following information in order to connect the sensors to the machine.
GPS Receiver
- Mount the GPS receiver.
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In order to prevent personal injury during installation and removal of the GPS receivers, use an approved access system in order to reach the mounting locations of the GPS receivers at the top of the masts. Do not climb on the blade. |
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| Illustration 1 | g01421003 |
(1) GPS Receiver (2) Thumb Wheel On Quick Release Bracket (3) Mast | |
Note: Make sure that the quick release bracket (29) is installed on the GPS receiver.
- Firmly hand tighten the thumb wheel (2) that is located on the quick release bracket.
Note: You must fully insert the GPS mast (3) into the quick release bracket on the GPS receiver (2). Otherwise, the measurements for the blade tip to the antenna will not be correct, resulting in wrong elevation guidance and construction.
- Proceed to "Connecting The Cables".
Connecting The Cables
- Connect the ninety degree connector to the GPS receiver.
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Once the system is placed in automatic mode, blade movement may occur. Ensure that all personnel are clear of the blade before you place the system in automatic mode. Personal injury or death from crushing could occur. |
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| Illustration 2 | g01420972 |
(5) Bracket (Connector) (6) Connector for the Harness of the GPS Receiver | |
- The other end of the coiled cable has a quick disconnect connector. Connect the quick disconnect connector to the connector on the bracket (connector) (4) .
Refer to Illustration 2.
Start Up
In order to optimize the accuracy of the AccuGrade System, complete the following checks:
- Data Card
- Selecting a Design
- Restore Settings
- Display Direction
- Display Brightness
- GPS Accuracy Mode
- Lightbar Tolerances
- Blade Wear
- Mast Vertical
- Vertical Guidance
- Cutting Edge Guidance
Data Card
- Insert your data card (12) that contains the design information into the slot for the data card on the display.
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| Illustration 3 | g01265965 |
(12) "Data Card Slot" | |
- Press the power key (6) on the display.
The display checks that all system components are present and that all system components are responding correctly. If there are any problems, the "Diagnostics" dialog will appear. For more information, Refer to Operation and Maintenance Manual, "Checking System Diagnostics". When the software for the AccuGrade System is loaded, and the system checks are finished, the plan view appears.
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| Illustration 4 | g01265962 |
(1) LCD (2) Soft Key Labels (3) Soft Keys (4) Escape key (5 ) "Next" key (6) Power key (7) "+" Key (8) Arrow keys (9) "-" Key (10) "OK" key (11) "Menu" key (12) "Data Card slot" | |
Restore Settings
Machine Settings
You must use the correct machine settings for your machine to ensure accurate guidance. This will need to be done if the display is moved to a different machine or the system was set up for a different configuration. To restore a machine settings file complete the following steps:
- Make sure that there is a data card inserted in the display with a machine configuration file. Make sure that the machine configuration file is stored on the root directory.
- From any guidance screen, press the menu key (11) .
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| Illustration 5 | g01265962 |
(1) LCD (2) Soft Key Labels (3) Soft Keys (4) Escape key (5 ) "Next" key (6) Power key (7) "+" Key (8) Arrow keys (9) "-" Key (10) "OK" key (11) "Menu" key (12) "Data Card slot" | |
- Select "Restore Settings" from the "Setup Menu - Configuration" screen.
- Press the "OK" key (10) .
- Select "Machine Settings".
If "Machine Settings" option is not displayed, see your site manager.
A dialog similar to Illustration 6 will appear.
- Press the "OK" key (10) .
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| Illustration 6 | g01430462 |
- Select the correct setting file for your machine and system configuration.
- Press the "OK" key (10) in order to confirm the settings, or press the escape key (4) in order to exit without saving.
When you restore a machine settings file, a dialog warns you to check the blade wear setting. Refer to "Blade Wear" for information pertaining to checking the wear of the blade.
Note: Always check the"Blade Wear" dialog. The machine cutting edge may have worn (or been renewed) since the machine settings were saved.
Display Settings
The display settings can be configured for different operator preferences or different job requirements. To restore a display settings file complete the following steps:
- Make sure that there is a data card inserted in the display with a display configuration file. Make sure that the display configuration file is stored on the root directory.
- From any guidance screen, press the menu key (11) .
- Select "Restore Settings" from the "Setup Menu - Configuration" screen.
- Select "Display Settings".
A dialog that is similar to Illustration 7 appears.
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| Illustration 7 | g01430468 |
- Press the "OK" key (10) .
- Select the correct setting file for your use.
- Press the "OK" key (10) in order to confirm the settings, or press the escape key (4) in order to exit without saving.
Selecting a Design
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| Illustration 8 | g01265962 |
(1) LCD (2) Soft Key Labels (3) Soft Keys (4) Escape key (5 ) "Next" key (6) Power key (7) "+" Key (8) Arrow keys (9) "-" Key (10) "OK" key (11) "Menu" key (12) "Data Card slot" | |
Note: The software for the AccuGrade System automatically loads the last design that was used, if that design is present on the data card.
In order to select a design, complete the following steps:
- Press the "Menu" key (11) .
- From the "Setup Menu - Configuration" screen, use the Arrow Keys (8) in order to scroll to "Select Design".
- Press the "OK" key (10) .
A dialog that is similar to Illustration 9 appears.
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| Illustration 9 | g01430450 |
- Use the arrow keys (8) in order to scroll to a design.
- Press the "OK" key (10) in order to load the design and return to the guidance views.
- Press the next key (5) in order to change the views.
For more information on using the views, refer to the following information:
- Operation and Maintenance Manual, "Plan View"
- Operation and Maintenance Manual, "Profile View"
- Operation and Maintenance Manual, "Cross Section View"
- Operation and Maintenance Manual, "Text View"
- Operation and Maintenance Manual, "Plan View"
- Ensure that the "GPS Accuracy Mode" is suitable for the type of work that will be done. For more information, Refer to Operation and Maintenance Manual, "GPS Accuracy Mode".
- Check that the vertical offset value is correct. The "elevation offset" method should be selected. For more information, Refer to Operation and Maintenance Manual, "Vertical Guidance".
- Check that the horizontal offset value is correct.
For more information, Refer to Operation and Maintenance Manual, "Selecting an Alignment for Horizontal Guidance".
- Check that the status bar shows the correct horizontal and vertical offset values. For more information, Refer to Operation and Maintenance Manual, "Setting a Horizontal Offset".
- Check that the "Blade: Left" Soft Key or the "Blade: Right" soft key shows that the required blade tip is selected.
Note: Depending on the operator configuration settings of the system, some of the options, soft keys, or views that are discussed in this manual may not be available. Other options, soft keys or views may be available.
Display Brightness
The brightness of the screen on the display should be adjusted to suit your working conditions. The brightness of the screen can be adjusted using the following key combinations:
- To increase the display brightness, hold down on the the "Menu" key (11) and press the "+" key (7) .
- To decrease the display brightness, hold down on the the "Menu" key (11) and press the "-" key (9) .
Display Direction
The user can set the display so that it matches the design when viewed from the front or back window of the machine. In order to set the direction of the display, complete the following steps:
- From the "Setup Menu - Configuration" dialog, press the arrow keys until "Display Direction" is highlighted.
- Press the "OK" key.
The "Display Direction" dialog will appear. Refer to Illustration 10.
- Press the Arrow keys in order to select the following:
Forward - for the front window view
Backwards - for the back window view
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| Illustration 10 | g01450719 |
- Press the "OK" key in order to confirm the setting. Press the escape key in order to close the dialog without saving the changes.
- Press the escape key in order to return to the "Setup Menu - Configuration" dialog.
GPS Accuracy Mode
By default, the "GPS Accuracy Mode" is available for all configurations of the AccuGrade System. Depending on the operator configuration settings for your system, some of the options, soft keys, or views discussed in this manual may not be accessible.
Use the "GPS Accuracy Mode" dialog in order to set the maximum GPS error estimate that is acceptable for your application.
Refer to Operation and Maintenance Manual, "GPS Accuracy Mode - Set" for additional information.
Blade Wear
As you operate the machine, the cutting edge of the blade wears away. This feature allows the measurement of the cutting edge to be updated.
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| Illustration 11 | g01526151 |
Measure the blade wear regularly. Record the amount of wear in the software for the AccuGrade System. For instructions, Refer to Operation and Maintenance Manual, "Blade Wear - Set".
Vertical Guidance
Verify or change the desired vertical guidance method. Refer to Operation and Maintenance Manual, "Vertical Guidance Method - Set" for additional information.
The AccuGrade System examines the design surface from two points on the cutting edge of the blade. These two points are configurable by the operator. When a one point method is used, the system examines the design from two points that are 5.0 cm (2.0 inch) apart. Once a vertical guidance method is selected, the system examines the design directly above or below the two selected points. The system will then try to move the blade to those points on the design when the system is in Automatic mode. If overcut protection is turned on, two additional points are examined at the blade tips. This will keep the blade tips from digging into the design when the system is in automatic mode.
| Vertical Guidance Methods | |
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| Method | Description |
| 1 Point Center | This method sets one vertical guidance point to the center of the blade. Use this method when you are working on a wide section of the design where the cross slope does not change (for example, the lane of a road). Guidance does not change with respect to the blade tip focus. |
| 1 Point Focus | This method sets one vertical guidance point 0.2 m (0.6 ft) in from the blade tip that has focus. Use this method when you are working on a narrow section of the design where the cross slope does not change (for example, the shoulder of a road). Guidance changes with respect to the blade tip focus. |
| 2 Points Tips | This method sets two vertical guidance points 0.2 m (0.6 ft) in from each blade tip. Use this method when you are working on an irregular design surface, where the cross slope changes across the width of the blade (for example, a golf course). Guidance does not change with respect to the blade tip focus. |
| 1 Point Custom | This method lets you set one vertical guidance point at a customized distance from the blade tip with focus. |
| 2 Points Custom | This method is used when a design surface requires extra control over the positioning of the vertical guidance points along the blade. It allows you to set two vertical guidance points at specified distances along the blade edge. |
Cutting Edge Guidance
Always check the accuracy of the system before you start work. Compare the coordinates that are shown on the display with the known 3D coordinates of a survey mark.
In order to check accuracy, complete the following steps:
- Make sure that the system is using a high accuracy GPS position.
- Place the focus point of the cutting edge on the survey mark.
Position the focus tip at the benchmark by moving the machine, and by raising and lowering the bowl. Then without changing the height of the bowl, back the machine up 3.05 m (10.0 ft) and then drive onto the mark (this intializes the pitch buffer after moving the bowl up and down).
- Check that the position that is shown on the display agrees with the known position of the survey mark.
This check ensures that the machine is operating with the correct GPS configuration and that the machine is operating with the correct machine dimensions. For more information, refer to Systems Operation, "Setting the Machine Dimensions".
Note: Regularly check the accuracy of the system. This helps determine the wear on the cutting edge. Always check the system accuracy after you restore a display configuration.
Blade Focus
Position information that is shown on the display relates to the guidance point that has focus on the blade. The red square on the blade indicates the part of the blade that has focus.
The guidance point that has focus can be on the left side of the blade, or on the right side of the blade.