When the bus system or student comfort is critical, continue to idle as needed. One of the key operational activities that should be minimized when possible is idle time. INSITE is a subscription-based service and support tool that provides a more comprehensive capability of adjusting engine parameters and calibration tools, as well as engine, after-treatment and trip reports. PowerSpec is a free software tool that can be used to adjust select engine parameters and read limited engine reports. The specific rows have been color-coded to reflect which tool can be used to enable or adjust settings, as well as read specific performance metrics. Note: Some of the settings and reports will require the use of PowerSpec and/or INSITE. This best practice checklist can be printed and filled out manually, or downloaded, edited and saved electronically. The following collection of best practices has also been compiled into a checklist that provides guidance for checking parameter settings, reading after-treatment performance, and ensuring that the DPF is healthy. Specific parameter settings, routine and consistent regenerations, and using genuine ReCon diesel particulate filters from Cummins can assist with maintaining your DPF. The typical school bus duty cycle requires the engine to operate with relatively high idle times, frequent stop and start events, lack of consistent engine and vehicle speeds, and light engine loads-all of which can impact the efficiency of the DPF. This list of best practices is here to help.

Cummins recognizes the challenges a school bus technician experiences when maintaining school bus engines equipped with diesel particulate filter after-treatments.

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