Product Link ® Elite PLE742 Systems Caterpillar

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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system. Turn the battery disconnect switch to the OFF position and lockout the battery disconnect switch with a safety lock. Place a Special Instruction, SEHS7332, "Do Not Operate" tag at the start switch and battery disconnect location to inform personnel that the machine is being worked on.

Before the PLE702 Network Manager is replaced, ensure that all steps in theSystems Operation, Troubleshooting, Testing, and Adjusting, M0076820, "Cellular Radio Does Not Communicate" have been performed.

1. Turn the disconnect switch and the key start switch to the OFF position. Disconnect the harness from the PLE702 Network Manager.

2. Remove the PLE702 Network Manager.

3. Ensure that the replacement Product Link Network Manager has the correct part number.

4. Install the replacement PLE702 Network Manager.

5. Flash the most current version of software to the new PLE702 Network manager and PL641 cellular if applicable.

6. If the Product Link device had a configuration file installed, reinstall the configuration file.

7. If the Product Link device had any digital inputs configured, resend the Digital Input configuration information from the User Interface.