- Autolube pressure sensor
- Machine Speed
Before the pump can run through a complete cycle, the status of the Autolube system must be set to INSTALLED. Cat ET must be used in order to change the parameter in the transmission ECM. By using Cat ET, the following parameters may be customized: interval of Autolube, duration of Autolube and minimum Autolube pressure. All of these values will have default settings. All of these settings can be changed in order to match specific applications.
The transmission ECM determines the amount of time that has passed since the last lubrication cycle. The transmission will not energize the Autolube relay until the correct amount of time has passed since the last lubrication cycle. The transmission ECM will also make sure that the machine speed is above zero before starting the next lubrication cycle.
The transmission ECM determines the amount of time that has passed since the lubrication cycle has started. If the minimum Autolube pressure is reached within the preset time, the transmission ECM will end the lubrication cycle. If the preset minimum lubrication pressure is not met in the time that is specified, the lubrication cycle will be aborted. This will activate the E334 Low Autolube Pressure event.
The transmission ECM is constantly monitoring the lubrication pressure in the system while the Autolube system is not active. If the lubrication pressure does not drop below 7600 kPa (1100 psi) before the next cycle, the E521 Auto Lube Pressure Not Decreasing After Cycle event will be activated.
Note: The Monitoring System may be used to cycle the Autolube system manually.