G 50/G 70/G 85 Maintenancewc_tx000484gb.fm 474. Maintenance4.1 Periodic Maintenance ScheduleThe Periodic Maintenance Schedule below lists basic maintenanceintervals for the engine and generator. For detailed maintenanceprocedures on the engine, refer to the engine Operator's Manual.Daily 50 Hrsor 2weeks250 Hrs 600 Hrsor12 Mo1200Hrs or24 Mo2000HrsOtherCheck engine oil and coolant level Check engine air filter gauge & aircleaner dust cap * Visual walkaround inspection Check tire inflation, tread wear and lugnuts before towing Check fuel filter Drain containment system Service the battery Change engine oil and replace oilfilter** Clean unit inside and out Check air intake hoses, connections,and system Replace fuel filter element Check automatic belt tensioner andbelt wear Check cooling system Perform coolant solution analysis &add SCA's Grease axle Pressure test cooling system Flush cooling system*** Check and adjust engine valveclearance Check brake fluid level in trailer at leastmonthly Replace crankcase ventilation filterevery 750 hours *Replace the air filter cartridge when yellow indicator of the engine air filter gauge reaches the red line.**Change the oil after the first 100 hours, then every 250 hours.***If John Deere antifreeze is used, the flushing interval may be extended. See engine Operator’s Manual.