| 摘要 |
A diagnostic information providing apparatus for a construction machine and a diagnostic information display system for a construction machine, which can find an abnormality before it actually occurs and can reduce a suspension period of the construction machine. Each of the apparatus and the system comprises a sensor 40 , etc. for detecting status variables related to an operating state of a hydraulic excavator 1 or ambient environment, and a controller 2 . The controller stores combinations between a plurality of snapshot items and one or more status variables related to each of the snapshot items in advance, acquires or extracts status variable data, which is regarded as being related based on the stored combinations, from corresponding detected signals of the sensor 40 , etc. with respect to the snapshot item selected by a selection command from an operator, thereby displaying the status variable data on a display unit 50 , and compares each of the status variables or a value computed based on a plurality of status variables with a predetermined reference value range. When the status variable or the computed value is outside the predetermined reference value range, the controller determines a failure of a corresponding part, and displays the failed part or the related status variable on the display unit 50.
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