| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction machine which detects a radiation capacity of a heat exchanger, thereby determining whether the heat exchanger is clogged.SOLUTION: A construction machine having a heat exchanger for cooling cooling water or a hydraulic fluid using a cooling fan includes: detection means which detects a radiation capacity of the heat exchanger; and control means which determines whether the heat exchanger is clogged on the basis of the heat radiation capacity. The detection means comprises a temperature detection part which detects the temperature of the cooling water or the hydraulic fluid. The control means comprises a temperature rising rate calculation part which calculates a temperature rising rate using the detected temperature, and a clogging determination part which determines whether the heat exchanger is clogged on the basis of the calculated temperature rising rate. |
