Patent ID: 7466337

Claim:
A construction machine comprising: a lower traveling body ( 1 ); an upper revolving body ( 3 ) that is rotatably attached to the lower traveling body ( 1 ); a traveling operation means ( 26 ) including travelling levers for moving said lower travelling body ( 1 ) forward or backward in such a way that when the travelling levers are pressed forward, the lower travelling body travels forward, and when the travelling levers are pulled backward, the lower travelling body travels backward; a monitor screen ( 39 ) having first and second display modes; and, a rear surveillance camera ( 38 ) arranged on said upper revolving body ( 3 ), wherein an image from said rear surveillance camera ( 38 ) is only displayed on said monitor screen ( 39 ) in said first display mode by operating said traveling operation means( 26 ), wherein a vehicle body condition is displayed on said monitor screen in said second display mode when said travelling operation means ( 26 ) is not operated.