ENGINE MAINTENANCE - Maintenance Schedule Intervals 4. Continue pulling until the air comes out free of water. tertreatment Systems Operator’s Manual for DEF information. Daily and refueling maintenance check of diesel exhaust fluid (DEF). Diesel Exhaust Fluid Maintenance Schedule Intervals 2 This procedure should be followed as part of daily and refueling maintenance checks. Maintenance schedule intervals. 1. Check level of diesel exhaust fluid. PX-9 Maintenance Intervals Y53-1185-1E1 (04/16/18) 37 3. To eject moisture from the air system tanks, pull the line that is connected to the moisture ejection valve. NOTE It is recommended to top up DEF when refueling.
See Engine Af- Maintenance Interval Miles Kilometers Hours Months A 7,500 12,000 250 3 B 15,000 24,000 500 6 C 30,000 48,000 1,000 12 (1 year) D 60,000 96,000 2,000 N/A E 60,000 96,000 2,000 24 (2 years) F 150,000 241,500 5,000 48 (4 years)