A method for installing an auxiliary ring around a shaft. The system may further include at least one electronic mail server comprising a database of subscriber accounts and for sending emails to and receiving emails from the mobile wireless communications devices based upon the PINs and unique IDs. Then, unlike the prior art, a canopy or a cab of a larger hydraulic excavator can be securely arranged on the upper swing body of a small hydraulic excavator. A second optical film contacts and is bonded to substantially all of the structures of the first major structured surface of the first optical film. The second clamp part has a second inner clamp surface extending between the third side and the fourth side. Finally, this invention reduces the availability of Angiotensin II and cytokines to the bacterial pathogens and thus inhibits the ability of their genome to scavenge the amino acids, and other biochemicals necessary for bacterial survival.