BEARING 5W6921 - Caterpillar

Illustration 1 g01858875Rated Fuel Limit - This is a limit that is based on the power rating of the engine and on the engine rpm. The Rated Fuel Limit enables the engine power and torque outputs to conform to the power and torque curves of a specific engine model. These limits are in the flash file and these limits cannot be changed.Reference Voltage - Reference voltage is a regulated voltage and a steady voltage that is supplied by the ECM to a sensor. The reference voltage is used by the sensor to generate a signal voltage.Relay - A relay is an electromechanical switch. A flow of electricity in one circuit is used to control the flow of electricity in another circuit. A small current or voltage is applied to a relay to switch a much larger current or voltage.Secondary Speed Sensor - This sensor determines the speed of the crankshaft during engine operation.Sensor - A sensor is a device that is used to detect the current value of pressure or temperature, or mechanical movement. The information that is detected is converted into an electrical signal.Short Circuit - A short circuit is a condition that has an electrical circuit that is inadvertently connected to an undesirable point. An example of a short circuit is a wire which rubs against a vehicle frame and this rubbing eventually wears off the wire insulation. Electrical contact with the frame is made and a short circuit results.Signal - The signal is a voltage or a waveform that is used to transmit information typically from a sensor to the ECM.Supply Voltage - The supply voltage is a continuous voltage that is supplied to a component to provide the electrical power that is required for the component to operate. The power may be generated by the ECM or the power may be battery voltage that is supplied by the engine wiring."T" Harness - This harness is a test harness that is designed to permit normal circuit operation and the measurement of the voltage simultaneously. Typically, the harness is inserted between the two ends of a connector.Throttle Position - The throttle position is the interpretation by the ECM of the signal from the throttle position sensor or the throttle switch.Throttle Position Sensor - The throttle position sensor is an electronic sensor that isusually connected to an accelerator pedal or a hand lever. This sensor sends a signal to the ECM that is used to calculate desired engine speed.Top Center Position - The top center position refers to the crankshaft position when the engine piston position is at the highest point of travel. The engine must be turned in the normal direction of rotation to reach this point.Wait To Start Lamp - This is a lamp that is included in the cold starting aid circuit to indicate when the wait to start period is active. The lamp will go off when the engine is ready to be started. The glow plugs may not have deactivated at this point