Service (Every 2000, Every 6000 Hours)

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