Komatsu 114E-3 Series Shop Manual page 262

SEN00458-01 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].
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114E-3 Series