Importance

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Abstract

This invention relates to a construction machine in which an operator can easily confirm that DEF level in a DEF tank has exceeded a predetermined level, when supplying DEF. With reference to FIG. 1, the construction machine comprises a DEF tank for storing DEF, a DEF level sensor for detecting DEF level in the DEF tank, warning means which warns to the operator and a controller which is connected to the DEF level sensor and the warning means. When DEF in the DEF tank exceeds a predetermined level which is detected by the DEF level sensor, the controller actuates the warning means. The warning means comprises at least one light e.g. a boom light or/and a horn.

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First Claim