New Software is Now Used on Certain M Series 3 Motor Graders {7600, 7605, 7610, 7620} Caterpillar

Motor Grader

12M Series 3 (S/N: N9B1-UP; N9F1-UP; N9P1-UP; N9R1-UP)

140M Series 3 (S/N: N9D1-UP; N9G1-UP; N9J1-UP; N9M1-UP)

160M Series 3 (S/N: N9E1-UP; N9K1-UP; N9L1-UP; N9T1-UP)

16M Series 3 (S/N: E9Y1-UP; N9Y1-UP)

18M Series 3 (S/N: N9A1-UP; E9W1-UP)

Description Of Change: New software is now used on certain M Series 3 Motor Graders. The new software contains improvements for the Transmission/Chassis ECM, the Implement ECM, the Steering Control ECM, the Monitoring System Display, and the Relay Driver Module on the 16M3 model. In addition, this software update supports the first production requirements for the 18M3 model.

Enhancement of Power Train (Transmission Chassis ECM) Software

• (12, 140, 160 M3 Models) Added support for the "Stable Blade" software enabled attachment (SEA) feature. The Stable Blade feature requires the installation of an Inertial Measurement Unit (IMU) sensor to enable operation. When the Stable Blade feature is enabled with the throttle lock in Auto, the feature is designed to minimize unnecessary up and down movement of the machine during operation in certain gears. When the IMU sensor is installed on the machine, the ECM can activate the following diagnostic codes for the IMU sensor under certain conditions:

CID 1893, FMI 09 - Inertial Measurement Sensor - Abnormal Update rate

CID 1893 - FMI 12 - Inertial Measurement Sensor - Failure

For Stable Blade attachment fields retrofit instructions and operational information, refer to Special Instruction, M0064654, "Procedure to Install Stable Blade Attachment On M Series 3 Motor Graders" .

• (All M3 Models) Improvement to increase the minimum machine speed limit when in gear 8F from 10.0 mph (16.1 kph) to 15.0 mph (24.1 kph).

• (All M3 Models) Improvement to provide engine overspeed counts and engine underspeed counts in the Cat ET Product Status Report (PSR)

• (16M3) - Added support for a new E1704 (High Transmission Clutch Accumulated Thermal Energy) Event. The Message Display will show "Clutch Temp High" when this event is active. This event will be activated as a Level 1 event or a Level 2S Event. The activation and level of severity is determined by a calculated temperature that is based on certain machine operating conditions including number of directional shifts within a certain time period. If the level 2S event is activated, modify machine operation to allow the transmission to cool down.

• (All M3 Models) - An enhancement to the Keypad LED indicator logic for the Autoshift feature. After application of the parking brake, the LED indicator will turn OFF to align with the Autoshift run status.

Enhancement of Steering Control Software

• (12, 140, 160 M3 Models) - Addition of a configuration for the Automatic (Auto) Articulation Software Enabled Attachment (SEA) feature. The feature is activated in the configuration screen. The "Automatic Articulation Installation Status" is used to enable the feature when installed on the machine. Auto Articulation is activated with a rocker switch in the cab. The operator must be in the seat to initiate Auto Articulation operation. Once Auto Articulation is in operation, if the operator leaves the seat, the Auto Articulation will remain active. For Auto Articulation attachment fields retrofit instructions and operational information, refer to Special Instruction, M0066410, "Procedure to Install the Auto Articulation Attachment on M Series 3 Motor Graders".

• (12, 140, 160 M3 Models) - Support has been added to allow a temporary 500-hour trial period for the Auto Articulation SEA feature. This feature is not available on the 16M3 model. To enable this feature, the Auto Articulation Rocker Switch must be installed on the rocker switch panel. To access the trial period status using Cat ET, the Cat ET version 2015B must be used. The status can be accessed using the Message Display to display the Enable/Disable Status or the time that remains in the trial period. The Cat ET Steering Control configuration screen must be used to set the Enable / Disable Status. The "Auto-Articulation Temporary Installation" configuration is used to set the status. The "Auto-Articulation Temporary Installation Status Time" is used to show how much time is remaining in the trial period. The Message Display will show the time that is remaining under the "AA Trial Remaining" screen.

• (All M3 Models) - Improvements to the activation logic for the E2085 (Invalid Articulation Response Detected) Event that are intended to minimize unnecessary event activations. To counter-minor articulation movement that can sometimes occur during machine operation, the event activation threshold for articulation movement has been increased from 3.5 degrees to 5.0 degrees. To activate the E2085 Event, the ECM has to detect articulation movement greater than 5.0 degrees within a 3 minute time period. If the articulation movement occurs, but does not exceed the 5.0 degree threshold in a 3 minute period. The ECM will start timing again from the current articulation position. This can result in a very slow articulation movement that may exceed 5.0 degrees, but may not cause activation of the E2085 Event during machine operation.

• (16M3) - Added support for a configurable "Blade Cushion Lock Status" parameter that will allow the function to be active all the time. This configuration is supported in Cat ET version 2015C. The default status for this configuration is "Locked Active". When the feature is in the default state, the Blade Cushion keypad button commands will be ignored by the ECM. The status can be changed using CAT ET version 2015C, or a later version, to "Not Locked" to enable operation based on the keypad button commands.

• (16M3) - Added support for a configurable "Centershift Pin Puller Lockout" parameter that will allow the function to be locked out or disabled. This configuration is supported in Cat ET version 2015C. The default status for this configuration is "Not Locked Out". When the feature is in the default state, the Centershift Pin Puller will function based on operator input. The status can be changed using CAT ET version 2015C or a later version to "Locked Out" which will result in the function being disabled regardless of operator input.

Enhancement of Implement Software (Implement ECM)

• (All M3 Models) - An Implement "Lockout Mode" is now supported in the Monitoring System Display that will allow the operator or technician to override the individual implement locked out functions to reposition the locked out function. To activate the Implement Lockout Mode, the engine must be running and the Parking Brake must be engaged. If the Parking is disengaged whereas in the Implement Lockout Mode, the Lockout Mode will be canceled. Once the Lockout Mode is no longer active, the implement function will be locked out in the last controlled position. The configurations can be accessed in the password protected configurations menu in the Message Display and the Information Display.

• (All M3 Models) - Added support for the CID 0041, FMI 03 (8 V Power Supply, Voltage Above Normal), and the CID 0041, FMI 04 (8 V Power Supply, Voltage Below Normal) on machines that have the Advanced Control Joysticks (ACJ) SEA attachment installed. The 8 VDC power supply is used as a power supply for field installations of the ACJs.

Enhancement of Relay Driver Module (16M3) Software

• An improvement to the work lights installation configuration to indicate which lights are covered under the "Rear Work Light Installation Status" configuration. Installations for both the blade work lights and the ripper work lights will now be covered under this configuration.

Enhancement of Message Display (HRC) Software

Illustration 1	g06019914
Stable Blade Icon next to "8R" in the Stable Blade Sensitivity Screen

• (12, 140, 160 M3 Models) - Improvement to display a "Stable Blade" icon on all performance screens when the Stable Blade feature is active (Stable Blade Switch ON, Throttle Lock ON, Autoshift OFF).

• (12, 140, 160 M3 Models) - For machines equipped with Stable Blade, a new screen is available that will allow the Stable Blade sensitivity to be set by the operator. The sensitivity percentage setting will determine how much control the ECM will apply to regulate the up and down movement of the machine when Stable Blade feature is active. To access the Stable Blade Sensitivity Screen, from the Main Performance Screen, use the UP arrow button. Use the left / right arrow buttons to adjust sensitivity in multiples of 10% (20, 30, 40). Default setting is 50%. Once the Stable Blade sensitivity is set, press OK. Navigating to the Stable Blade sensitivity screen from the Cross Slope screen while in Left or Right Auto Mode will cause the blade control mode to change to "Inactive Auto". The sensitivity setting can be set using Cat ET by selecting the "Stable Blade Sensitivity" configuration in the Transmission Chassis ECM configuration screen.

• (12, 140, 160 M3 Models) - Added support for the Automatic Articulation SEA feature temporary installation status configuration. The "Automatic Articulation Feature Temporary Installation Status" will display when the "Automatic Articulation Installation" configuration is set to "Not Installed". The temporary installation status will allow for a 500-hour trial period to use the feature without an SEA charge. The display will show "AA Trial" and "AA Trial Remaining" to indicate that the trial period is active and to display the number of hours that are remaining in the trial period.

• Added display support for the new "Locked Out While Stationary" parameter. When enabled, the Locked Out While Stationary parameter will lock out the articulation function only when machine travel speed is zero. The configuration can be accessed in the password protected configurations menu.

Enhancement of Information Display (16M3) Software

• Improvements to the flash process that are intended to minimize occurrences where the display could abort the flash under certain conditions.

• Improvement to provide greater coordination of the active display when a Cat Grade Control Cross Slope system and an Accugrade system are both installed on the machine. When the Accugrade system is active, the Accugrade display screen will be shown and the Cross Slope display screen will not be shown. If the Accugrade display is disconnected, a key cycle sequence will reactivate the Cross Slope screen.

Adaptable To: The new software part numbers for Power Train System, the Implement System, and the Steering System are listed in Table 1.

The new software part numbers for New Message Display Software Groups are listed in Table 2.

The new software part numbers for New Relay Driver Module Software Groups are listed in Table 3.

The new software part numbers for New Information Display Software Group are listed in Table 4.

Note: (A) Cat ET software release version 2015C or the latest available Cat ET version is recommended for flashing to utilize all the improvements in this software update release.

(B) When updating software on the M Series 3 Motor Graders, all the applicable machine control modules should be updated with the listed software files or the latest available version of software at the same time. Refer to the Caterpillar Service Information System to verify that all flash files are the latest version.

(C) After flashing new software to an ECM or multiple ECMs, always reset the ECM(s) by cycling the power supply. Turn the key switch and the disconnect switch from ON position to the OFF position. Wait 10 seconds. Then, turn the disconnect switch and the key switch to the ON position as required. Clear any active or logged diagnostics before operating the machine.

The serial numbers are adaptable and effective with the serial numbers that are listed in Table 5.