Inspection and Maintenance of the Boiler size 250 kg. aims to do a maintainable planner and improve a boiler’s property to get a security certificate of its usage. This project inspects a light pipe boiler that uses diesel fuel and has a steam production capacity at 250 kg per hour and the test pressure less than 4 bars. For the convenience in examined the condition and maintenance of the boiler, we inspect daily, weekly, monthly, and annual via the inspection and maintenance schedule.