HEAD 9T4930 - Caterpillar

ATA Data Link - The ATA Data Link is an electrical connection that is used for communication between microprocessor based devices. The devices must be compatible with the American Trucking Association and SAE Standards (J1587 and J1708) such as trip recorders, electronic dashboards, and maintenance systems. The ATA Data Link is the communication medium that is used for the programming and the troubleshooting with Caterpillar electronic service tools.After Market Device - An after market device is a device or an accessory that is installed by the customer after the vehicle is delivered.Air-To-Air Aftercooler - An air-to-air aftercooler is a device that is used on turbocharged engines in order to cool inlet air that has undergone compression. The inlet air is cooled after the inlet air passes through the turbocharger. The inlet air is passed through an aftercooler (heat exchanger) that uses ambient air for cooling. The inlet air that has been cooled advances to the inlet manifold. Alternating Current (AC) - The direction of the current flow changes. The current flow alternates constantly.American Wire Gauge (AWG) - AWG is a measure of the diameter of electrical wire. AWG is also a measure of the current carrying capacity of electrical wire. When the AWG number is smaller, the diameter of the wire is larger. When the AWG number is larger, the diameter of the wire is smaller.Atmospheric Pressure Sensor - The atmospheric pressure sensor measures barometric pressure. The sensor sends a signal to the electronic control module (ECM). The signal is used in engine control and in engine operation.Before Top Center (BTC) - BTC is the 180 degrees of crankshaft rotation before the piston reaches the top center position in the normal direction of rotation.Boost Pressure Sensor - The boost pressure sensor measures inlet manifold air pressure. The boost pressure sensor sends a signal to the Electronic Control Module (ECM).Bypass Circuit - A bypass circuit is a circuit that is used as a substitute circuit for an existing circuit. A bypass circuit is typically used as a test circuit.Calibration - Calibration is an electronic adjustment of a sensor signal.CAT Data Link - The data link is an electrical connection that is used to communicate with other devices that utilize microprocessors. The microprocessor based devices are compatible with the proposed American Trucking Association and the SAE standard. These devices include trip recorders, electronic dashboards, and maintenance systems. The data link is also the communication medium that is used for programming with the electronic service tool. The data link is also used for troubleshooting with the electronic service tool.Caterpillar Engine Monitoring - The part of the Caterpillar Electronic Engine Control that monitors coolant temperature, oil pressure, inlet manifold air temperature, and coolant level. Caterpillar engine monitoring then informs the operator of any problems that are detected. The Coolant Temperature, Inlet Manifold Air Temperature, and Oil pressure Sensors are supplied by Caterpillar and Monitored by the ECM. The coolant level sensor is installed by the OEM factory but still monitored by the