Crane use and maintenance: Running characteristic period. Loose. The new processing and assembly of parts 100 t crane Tadano much money, there is a bias geometry and with the size of the initial period, due to shock and vibration alternating load, and the impact of heat, deformation and other factors, 100 tons Truck Crane plus excessive wear and tear and other reasons, tends to produce the original tightening loose parts. Crane main performance parameters indicators: Lifting range. Margin: when the minimum or trolley boom angle Slewing center position and the magnitude of the maximum distance for the most significant; otherwise it is the smallest margin. Lifting speed: Speed ??is the lifting crane in the steady state, the vertical displacement speed rated load, in units of m / min.