Additional Protective Cover for Preventing Entry of Foreign Matters into Drive Sprocket of Construction Machine with Crawler Traveling Body and Method for Assembling Additional Protective Cover

An additional protective cover for [preventing entry of foreign matters into a drive sprocket of a construction machine with a crawler traveling body, the construction machine including:

• the crawler traveling body that has a crawler wrapped around an idler wheel provided at a front end portion of a traveling frame and the drive sprocket provided at a rear end portion of the traveling frame;
• and the drive sprocket that is configured by].
• a crawler traveling body, the crawler traveling body including a driving source housing fixed to a traveling frame and a sprocket housing configured to be rotatable with respect to the driving source housing, the additional protective cover covering a space between the driving source housing and the sprocket housing to prevent the entry of foreign matter and comprising:
• at least two divided segments in which a coupling portion is provided at each of adjacent end portions of the segments such as to be coupled with one another by means of a coupling bolt, each segment including:
• a main body that revolves on a driving source housing outer circumferential surface in the in a coupled state, and
• a cover portion that extends from the main body to a position facing a sprocket housing outer circumferential surface;
• and
• an adjusting bolt screwed from the main body into abutment with the driving source housing outer circumferential surface to attach and fix the additional protective cover onto the driving source housing.