| 摘要 |
PROBLEM TO BE SOLVED: To provide an anti-theft device preventing theft of a construction machine effectively without an engine drive control unit having an authentication function.SOLUTION: An anti-theft device of a construction machine comprises: a theft prevention unit outputting a third identification code only when a first ID code and a second ID code match; and a carbody control unit provided separately from an engine drive control unit and collating a fourth ID code with the third ID code. The anti-theft device comprises a switch unit connecting a power supply to an engine and the engine drive control unit electrically when the third ID code and the fourth ID code match, and shutting off the power supply from the engine and the engine drive control unit electrically when the theft prevention unit does not output the third ID code and the third ID code and the fourth ID code do not match. |
