Service (Every 2 Years, Every 3000, 4500, 6000 and 10000 Hours)

Service procedure	Every 2 years	Every 3000 hours	Every 4500 hours	Every 6000 hours	Every 10000 hours
Engine - Air cleaner, change the primary element (whenever the yellow Caution light flashes and corresponding information is displayed, or every 1500 hours)	•
Air brake system - Change the air-drier cartridge (an earlier change may be necessary if condensed water drains out when checking compressed air tank, or every 1500 hours)	•
Engine - Have valves adjusted by your John Deere™ dealer		•
Engine - Air cleaner, change the secondary element (no later than at every fourth change of the primary element or every 5 years)			•
Cooling system - Change the coolant (if COOL-GARD™ II is used and coolant is checked annually)*				•
Front-wheel drive axle - Have accumulator of TLS™ changed by your John Deere™ dealer					•
* When using a coolant other than COOL-GARD™ II, the service interval is reduced to 2000 hours, or 3000 hours if COOL-GARD™ is used. See also Section 80 for additional information on coolant. See also Note Regarding the Service Interval for Engine Coolant in this section.