(2)The safety operational control for fluid pressurized system such as M/C A10502, M/C 42D1977 and M/C A10601-1 is not adequately, properly and efficiently to assure that the failure due to overpressure will be prevented. For example, checking of pressure gauge to verify whether the pressure is in the safe tolerance is not carried out and included in daily machine safety checklist. In addition, the safe control pressure limit is not set and used as a comparing standard when daily checking is carried out.