SOCKET 3J0055 - Caterpillar

Do not operate or work on this equipment unless you have read and understand the instructions and warnings in the Operation and Maintenance Manuals. Failure to follow the instructions or heed the warnings could result in injury or death. Contact your Caterpillar dealer for replacement manuals. Proper care is your responsibility.
General Hazard Information
To prevent injury or death, all equipment that is equipped with a Caterpillar Product Link system is required to have a warning label clearly posted.The Product Link radio transmitter must be disabled by the minimum distance mandated under all applicable legal requirements. In the absence of any legal requirements Caterpillar recommends that the end user perform their own risk assessment to determine safe operating distance.Note: If using the previous version of Product Link radios (PL121SR, 522, 523, 420, or 421) refer to blast site requirements as stated in Operation and Maintenance Manual, SEBU8142, "Product Link - 121SR/321SR/420/421/522/523".General Troubleshooting Information
Many Caterpillar products have a published Electrical System Schematic that reflects a Product Link installation. Refer to these schematics if a troubleshooting procedure instructs you to "Repair the harness". Perform continuity checks and resistance checks at the connectors in order to locate a failure in the harness. At a component connector, always check the ground circuit. Less than 5 ohms of resistance is required from the ground contacts to frame ground. A problem may be incorrectly diagnosed, if an excessive resistance that is greater than 5 ohms is present in the ground circuit. During a troubleshooting procedure, the user should inspect all component and harness connections before a component is replaced. If these connections are not clean and tight, the connection may cause an electrical problem.The problem can be permanent or the problem may be intermittent. Ensure that the wires are pushed into the connectors completely. Make sure that the connections are tight before other tests are performed. A failure of an electrical component may cause a failure of another component or a failure may be caused by the failure of other components. Always attempt to find a failure. The following test procedures are written for a technician with a working knowledge of electricity and electronics. The user should correct the cause of a failure in the electrical system before you replace a component.The test procedures that are found in Systems Operation, Troubleshooting, Testing and Adjusting Manual are written for a technician that has a working knowledge of electricity and electronics. Caterpillar recommends that the electrician has a knowledge regarding the danger that is inherent in electrical troubleshooting. Caterpillar recommends that the technician can measure voltage and resistance with a multimeter. In some cases, a technician may perform checks of the electrical circuits. Consider the following guidelines before performing electronic troubleshooting procedures:
Remove power.
Before you read the resistance or continuity, lock out the test circuit with a tag.
Isolate circuit branches for resistance or continuity checks in order to prevent reading through components.
When reading a wire end to end and within a connector, read the test input pin to all