MAINTENANCE - What is a Maintenance Program? 3 28 Y53-1272-1B1 (08/17) I A B C D E At first 15,000 mi/ 24,000 km or at first PM 15,000 mi/24,000 km/Monthly 30,000 mi/48,000 km 60,000 mi/96,000 km/ 6 Months 120,000 mi/ 192,000 km/ Annually 240,000 mi/ 384,000 km System Component Task I A B C D E Air Air Compressor Governor Replace air strainer. • Air Lines Check condition and routing to prevent chafing. • System Lubricate; see What is the Air System? on page 29. • Inline Filters Replace elements or clean with solvent. • Air Dryer Perform the checks listed. • Air Dryer (Oil-Coalescing Desiccant Cartridge) Replace Cartridge Annually regardless of mileage