Air Inlet and Exhaust System 68 UENR0623-02 is at ambient temperature. 1. Connect the engine to the electronic service tool before the wall flow DPF is removed from the engine. Once the engine is connected to the electronic service tool, then perform an ash service test. This test is a manual regeneration. The test could take an hour. f. Allow the exhaust gas cooler (NRS) to settle in order for the air that is trapped to escape. g. Observe the exhaust gas cooler (NRS) for air bubbles that indicate a leak. If air bubbles are seen within 3 minutes, this indicates a leak with the exhaust gas cooler (NRS). Note the location or the origin of the leak. Record this information. Note:
Allow the wall flow DPF to cool until the wall flow DPF can be safely removed. h. If no bubbles are detected after 3 minutes, the exhaust gas cooler (NRS) is reusable. 2. Remove the wall flow DPF from the Clean Emissions Module (CEM). Refer to Disassembly and Assembly for the correct procedure. i. Remove the exhaust gas cooler (NRS) from the water. If the exhaust gas cooler (NRS) does not leak, the problem may be elsewhere in the cooling system or the engine. Refer the service manual in order to check for leakage. If the exhaust gas cooler (NRS) does leak, the exhaust gas cooler (NRS) should be replaced. Note:
Identify all engine fault codes if black soot is discovered on the outlet side of the center section on the wall flow DPF. Refer to Troubleshooting for problem identification and the disposition of the wall flow DPF. 3. The wall flow DPF must be cleaned. Contact your nearest Perkins distributor for assistance. i05288853 Diesel Particulate Filter - Clean 4. Reinstall the wall flow DPF onto the Clean Emissions Module (CEM). Refer to Disassembly and Assembly for the correct procedure. Reset the Engine Ash Model The engine ash model must be reset whenever the filter is cleaned or replaced. Reseting the ash model places the wall flow DPF volume back to the Clean State .
The resetting will allow the regeneration of the wall flow DPF to function properly. Wear goggles, gloves, protective clothing, and a National Institute for Occupational Safety and Health (NIOSH) approved P95 or N95 half-face respirator when handling a used Diesel Particu- late Filter or Catalytic Converter Muffler. Failure to do so could result in personal injury. 1. Use the electronic service tool to access the configuration parameters. Select Service from the top menu and highlight the Ash Service Calibration from the menu in the service tool. 2. Choose the correct replacement type of diesel particulate filter in the menu that appears.
The types of replacements for the diesel particulate filter are the following: The muffler, catalytic converter/muffler, and die- sel particulate filter will become extremely hot during engine operation. A hot muffler, catalytic converter/muffler and diesel particulate filter can cause serious burns. Allow adequate cooling time before working on or near the muffler, cata- lytic converter/muffler and diesel particulate filter. New filter replacement Remanufactured filter replacement Filter cleaned and reapplied The wall flow Diesel Particulate Filters (DPF) require periodic removal of ash that accumulates from engine oil. Note:
If a new filter or a remanufactured filter is used, the new serial number must be programmed into the electronic service tool. Cleaning Procedure Note: For the Filter cleaned and reapplied option, use the electronic service tool to perform the DPF Ash Cleaning reset. Follow this cleaning procedure for removal of the ash from the wall flow DPF. Refer to Operation and Maintenance Manual for the intervals of service hours for cleaning of the wall flow DPF. Note: For the New filter replacement option, use the electronic service tool to perform the DPF Replacement Reset .