2013/11/11 Caterpillar

Machine Control and Guidance Products:

AQUILA DRAGLINE (S/N: DNB1-UP)

AQUILA DRILL (S/N: DNA1-UP)

CAES ULTRA (S/N: 2TZ1-UP)

MINESTAR ONBRD (S/N: DNG1-UP)

PROXIMITY AWARE (S/N: PA31-UP)

TERRAIN DRILL (S/N: DNH1-UP; DNJ1-UP)

TERRAIN GRADING (S/N: TFE1-UP)

TERRAIN LOADING (S/N: TFL1-UP)

Service Magazine SEPD1655, 26 August 2013, "New Firmware Is Now Available for MS952,MS972,MS992 GPS Receivers Used On Machine Control and Guidance Products". Disregard the information in the article that is listed above. Refer to the information in the following article.

Description of Change: New firmware is now available for MS952, MS972, and MS992 GPS Receivers used on Machine Control and Guidance Products. The new firmware contains improvements that are listed below:

• The new version of the MS9x2 firmware corrects a communication issue on startup between the two GPS receivers on Dual GPS CAES systems.

Note: It is recommended that single-MS9x2 receiver systems on site are also updated with the new release of firmware. This ensures that all MS9x2 receivers on a site are running the same version of firmware.

• It is now possible to enable the use of the positioning engine Kalman filter with a CAN message.

Note: This change will only have an effect in GNSS receivers running the low dynamic tracking loop.

• Improvements have been made to the RTK engine to increase the robustness of the Precision RTK solution.

Adaptable To:

Instructions to Update Firmware on MS972, and MS992 Receivers

The firmware is available for Terrain is available on https://dealer.cat.com/terrain in the "Terrain 1.2 Release Downloads & Documentation" section.

Follow the instructions given below to flash the MS972, and MS992 GPS Receiver with firmware V4.65:

1. Open MCGFlash and connect to the appropriate MS972 or MS992 receiver.

2. Select "MS9xx Receiver" and the appropriate PC serial port from the Device Configuration menu, and click on "Next".

3. Select "Load GPS Software" from the Operations menu, and click on "Next". The "Select Firmware" dialog appears.

4. Select the "MS9x2 FW V4.65" and click on "Next".

5. Review the information and click on "Finish" on the Current Settings screen. A progress bar will appear.

   Note: The firmware flashing will take approximately 30 minutes. Do not disconnect or power down the receiver during the flashing process.

6. Once the upgrade of new firmware has completed, click Menu to "Return to the Operations menu".

Instructions to Update Firmware on MS952 Receivers

ReferenceSpecial Instruction, REHS8812, "Procedure to Update the Firmware on a MS952 GPS Receiver" for additional information on flashing the MS952.

The new software part numbers are listed in Table 1.

Table 1

Part Number	Description
WFS-MS9x2-V65.exe	V4.65 GPS Receiver Firmware