Service (Every 4500 and Every 6000 Hours)

Service	4500 hours	6000 hours
Change the coolant (if COOL-GARD II is used and it is checked regularly every year)*		•
Have the engine crankshaft damper checked by your John Deere dealer	•
* If John Deere COOL-GARD II is not used, the coolant change interval is reduced to 2 years or 2000 hours of operation.