1A-121A OPERATION G2.5A1.19 Engine MaintenanceThe Periodic Maintenance Schedule below lists basic maintenance intervals for the engine and generator. Pleaseread the detailed maintenance procedures for the engine described in engine Owner’s Manual. This manual wassupplied with the generator. Replacement copies of these manuals can be ordered from WACKER Corporation ordirectly from the engine manufacturer.1.20 New MachinesChange engine oil and replace oil filter after the first 20 hours of operation.1.21 Periodic Maintenance Schedule1.22 Changing OilDrain oil while engine is still warm.1. Remove oil fill plug (g) and drain plug (h) to drain oil.2. Install drain plug.3. Fill engine crankcase with recommended oil up tolevel of plug opening (i).Oil Capacity: 21 oz. (0.6 liters)4. Install oil filler cap.Note:In the interests of environmental protection, placea plastic sheet and a container under the machine tocollect any liquid which drains off. Dispose of this liquidin accordance with environmental protection legislation. 1005SD53hgiCheck engine oil. Fill to correct level.Check air cleaner.Clean air cleaner.*Change engine oil.Check sediment cup at carburetor.Clean and adjust spark plug.Clean spark arrester (optional accessory).Check shockmounts. Replace when necessary.Check and adjust valve clearance.*Clean fuel tank.*Check condition of fuel line. Replace when necessary.* Service more frequently in dusty conditions.DailyBeforeStartingEvery 3months or50 hoursEvery 6months or100 hoursEvery yearor 300hours