wc_tx003614gb_FM10.fm169Mobile Generator General Maintenance16.10 Cleaning the Diesel Particulate Filter (DPF) (if equipped)Overview Sustained operation of the generator under load heats the DPF to a temperaturehigh enough to burn accumulated soot. This cleaning process (passiveregeneration) normally occurs automatically.Soot may fill the DPF (a) when the engine runs at idle for long periods with no load.An indicator (b) on the control panel illuminates when the DPF is full of soot. Theoperator must then either increase the load on the engine, or perform a manualregeneration to clean the DPF.ManualregenerationIf the DPF indicator illuminates, follow the steps below to perform an manualregeneration.1. Start the engine at low idle speed.2. Move the manual regeneration switch (c) to the “on” position and hold it for fiveseconds. The DPF indicator will go out and the regeneration process will begin.3. Release the switch.The engine speed will gradually increase to about 1000 rpm while the machine is inregeneration mode. When regeneration is complete, the engine speed will return tolow idle (about 750 rpm).Note: The regeneration process may continue for up to one hour depending onambient conditions and the amount of soot inside the DPF.NOTICE: The DPF may be permanently damaged if the machine continues tooperate with accumulated soot inside the DPF. Perform a manual regeneration assoon as possible after the indicator illuminates.wc_gr009226ØVa b cWARNINGBurn hazard. The engine, DPF and exhaust pipe become very hot during operation.► Do not touch the engine, DPF, or exhaust pipe while the machine is operating.Wait for these components to cool before touching them.
