The Tiger truss Tower Lifting Tool is developed as an additional tower product for the erection of the LL35S/ LL40S/LL45S & LL50S Tower masts. It is a portable system that can be put up fast and safe. For each system a different Tower Lifting Tool can erect Towers up to various heights. The Tower Lifting Tool is constructed as a main frame with additional bars to be connected as a triangular shaped construction. The Tower Lifting Tool is placed on the Sleeve Block and on the truss which is fixed with the help of ratchet straps. The main frame has a pulley at the top, through which the chain of the hoist is guided. By attaching the hoist to the base section and the hook of the chain to the mast the tower can be erected easily. In general the Tower Erecting System is very easy to mount and demount. Erecting a tower takes 20 minutes. For each Tower Lifting Tool one rigging hoist (1 Ton) and two sets of ratchet straps are necessary. A necessity for all towers being erected over 10 to 12 meters height when a crane is not available.