Komatsu ecot3 PC300LC-8 Shop Manual page 844

SEN02634-02 40 Troubleshooting
<Example of troubleshooting> Exhaust smoke is black
Let us assume that [Clogged air cleaner] is taken to be the cause of black exhaust gas. 3 symptoms have
causal relationship with this problem: [Color of exhaust gas gradually became black], [Power was lost gradu-
ally], and [Air cleaner clogging caution lamp is flashing].
4
PC300, 350-8