. OPERATION EXPLANATION OF COMPONENTS OPERATION EXPLANATION OF COMPONENTS 3 - 10 E01: Whe mechanic a drop in t he l ev el of th coola nt, the maintenance location i s displayed. If the maintenanc e caution lamp l ights up at item the same t indicated ime, ins after co pect and mpletion perfor of the m maintenance o day's work or f the when changing with E01 shifts. , chec carried o REMARK "E01" is isplayed o of haracter display "MAINTENANCE" or the part of the machine requiring inspection, filling of fluid, o r replacement is displayed on the bottom line.