Division 3.4.1.4

The engine manufacturer shall specify for the service accumulation schedules any adjustment, cleaning, maintenance (where necessary) and scheduled exchange of the following items:

• filters and coolers in the exhaust gas recirculation (EGR)

• positive crankcase ventilation valve, if applicable

• fuel injector tips (only cleaning is permitted)

• fuel injectors

• turbocharger

• electronic engine control unit and its associated sensors and actuators

• particulate after-treatment system (including related components)

• NO_x after-treatment system (including related components)

• exhaust gas recirculation (EGR), including all related control valves and tubing

• any other exhaust after-treatment system.