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Change Engine Oil and Filter1
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Service Batteries2 and Connections
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Test Coolant Freeze Point3
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Inspect Seat Belts
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Replace Primary and Secondary Engine Air Filters3
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Replace Cab Air and Recirculation Filters3
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Check HydraCushion Accumulator Charge Pressure (If Equipped)45
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Change Transmission, Hydraulic and Axle Oil and Filters
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Clean Aftertreatment Fuel Injector (15 L Engine)5
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Replace radiator pressure cap (15 L Engine)
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Clean Hydraulic Oil Sump Screen
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Inspect Auxiliary Drive Belt Tensioner (15 L Engine only)
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Check Axle End Play5
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Replace Fuel Tank Vent Filters6
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Replace Diesel Exhaust Fluid (DEF) Tank Filter (FT4/Stage IV Engines Only)7,8
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Adjust Engine Valve Clearance5 (T2/Stage II Engines Only)7
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Change Crankcase Breather Filter Element (15 L Engine Only)
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Adjust Engine Valve Clearance9 (9.0, 13.5 and 15 L FT4/Stage IV Engines Only)7
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Replace Transmission Drive Shaft Damper10
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Replace Diesel Exhaust Fluid (DEF) Dosing Unit Filter (FT4/Stage IV Engines only)7
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Replace Crankshaft Damper (9.0 and 13.5 L Tier II/Stage II Engines
Only)11
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Drain, Flush, and Refill Engine Cooling System12 and Replace Engine Coolant Thermostats
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