GP 3800A Maintenancewc_tx000793gb.fm 354 Maintenance4.1 Maintaining the Emission Control SystemNormal maintenance, replacement or repair of emission controldevices and systems may be performed by any repair establishmentor individual; however, warranty repairs must be performed by adealer/service center authorized by WACKER NEUSON. The use ofservice parts that are not equivalent in performance and durability toauthorized parts may impair the effectiveness of the emission controlsystem and may have a bearing on the outcome of a warranty claim.4.2 Periodic Maintenance ScheduleThe table below lists basic machine and engine maintenance. Tasksdesignated with check marks may be performed by the operator.Tasks designated with square bullet points require special trainingand equipment.Refer to the engine owner’s manual for additional information.DailybeforestartingAfterfirst20 hrs.Every50hrs.Every100hrs.Every300hrs.Check the fuel level. 3Check the engine oil level. 3Inspect the air filter. Replace asneeded. 3Check external hardware. 3Clean the air cleaner element.* Inspect the shockmounts for damage. 3Change the engine oil.* Clean the sediment cup or fuelstrainer. Check and clean the spark plug. Check and adjust the valve clearance. Clean the fuel tank.* Check condition of the fuel lines.Replace when necessary. *Service more frequently in dusty conditions.