Belt conveyor is an equipment that transports material from one place to another place. One of the important BC at PT Holcim Indonesia Tbk. Tuban Plant is 291-BC3 that is the only one to supply limestone and clay as main components of cement. Because of that, some fatal damage that can cause it to stop must be preventively anticipated. Support of the tail pulley is crucial for this equipment. A problem that recently happened is bending on this supporting shaft. It causes some domino effects, such as bearing damage and unexpected movement of the shaft. Those take up to five days to overcome since the complex maintenance procedure. Thus, modification of the support should be taken in order it is able to prop up the tail pulley, so some damage on the other part will not come.