SF225, 237 During DPF regeneration, exhaust gas becomes hot and the Exhaust gas high temperature lamp illuminates When the regeneration procedure is complete the both lamps will turn off and normal operation can start again. NOTE: If the parking brake is not applied or the water temperature is below 30°C, DPF warm-up will not start. - Manual regeneration mode (Stage 2): (Soot load is120% - 139%) The process is same as stage 1, but with limited output. Engine speed is reduced to 1 500 rpm. Output is reduced to 50%. - Overload (Stage 1): (Soot load is 140% - 159%) If the DPF lamp flashes, the buzzer sounds, and the engine Diagnosis lamp comes on, it is excessive soot loaded. The regeneration procedure must start at dealer to use ISEKI engine service tool. - Overload (Stage 2): (Soot load is over 160%) The DPF is completely clogged. Need to change the DPF.
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