Lubrication and Maintenance Service Interval Chart

	Lubrication and Maintenance Service Intervals
Item	Daily1	500 Hours/ 12 Month	1500 Hours	2000 Hours/ 24 Month	As Required
Operate Engine at Rated Speed and 50%-70% Load a Minimum of 30 Minutes	•
Check Engine Oil and Coolant Level	•
Check Fuel Filter/Water Bowl	•
Check Air Cleaner Dust Unloader Valve & Restriction Indicator Gauge 2	•
Visual Walk Around Inspection	•
Service Fire Extinguisher		•
Check Engine Mounts		•
Service Battery		•
Change Engine Oil And Replace Oil Filter 3 4		•
Check Crankcase Vent System		•
Check Air Intake Hoses, Connections, and System		•
Replace Fuel Filter Elements		•
Check Automatic Belt Tensioner and Belt Wear		•
Check Engine Electrical Ground Connection		•
Coolant Solution Analysis-Add SCAs as required		•
Pressure Test Cooling System		•
Check Engine Speeds		•
Open Crankcase Ventilation (OCV) Filter			•
Check Cooling System		•
Test Thermostats				•
Check Crankshaft Vibration Damper (6.8 L Engines) 5				•
Flush and Refill Cooling System 6				•
Check and Adjust Engine Valve Clearance				•
Add Coolant					•
Replace Air Cleaner Elements					•
Replace Fan and Alternator Belts					•
Check Fuses					•
Check Air Compressor (If Equipped)					•
Bleed Fuel System					•