OPERATOR & MAINTENANCE MANUAL326. Maintenance Before performing any check or maintenance, stop the engine and remove the start key For detailed maintenance procedures on the engine, refer to engine operator's manual.6.1 Periodic Maintenance ScheduleService itemsDailyOrAfter8 hrsWeeklyOrAfter50 hrsMonthlyOrAfter100 hrs6MonthsOrAfter250 hrsYearlyOrAfter500 hrs2YearsOrAfter1000hrsCheck various meters and alarmlamps ●Check engine oil , fuel andcoolant level ●Check for leaks (oil, fuel andcoolant) ●Check air cleaner dust cap ●Check generator visually ●Check battery charging system ●Check drive belt tension ● ●Drain water/sediment from fuelfilter ●Drain water/sediment from fueltank ●Change engine oil and replaceoil filter ●Change fuel filter element ●Clean or change air filterelement●Change●ChangeCheck cooling system ●Clean unit inside and outside ●Change coolant ●Pressure test cooling system ●Clean inside fuel tank ●6.2 New Machines Run the generator at least 60–100% of continuous load for the first 100 hours. Change engine oil and replace oil filter after the first 50 hours.