Hot oil systemThe hot oil system forms a special danger due to the high temperature of the oil. Oil can be discharged from a valve or flange opened carelessly and cause serious burns.Obey the following precautionary measures prior to starting the maintenance and repair works in the oil system:• turn off all necessary and possible valves and circuits;• check the surface temperature of the parts, a very high surface temperature is a sign of oil inside;• let the piping cool down properly before work is started.