Patent ID: 8024094

Claim:
A maintenance history information management system for a construction machine, comprising: a data control device being incorporated in the construction machine to store machine information including a model name and a serial number and to process operating time or date and time; a mobile terminal including control means for displaying construction machine maintenance items on display means, input means for enabling a worker to enter data for the maintenance items displayed on said display means, and storage means for storing the data entered through said input means as maintenance history data; a plurality of communication connectors being provided for maintenance targets of the construction machine and communication-connected to said data control device; and a communication cable for enabling to connect said mobile terminal to said communication connectors; wherein said mobile terminal inputs the machine information and operating time or date and time from said data control device via said communication cable and said connector and stores the maintenance history data in said storage means in association with the input machine information and operating time or date and time.