Greater than 20% Idle Time - 350,000 mi / 560,000 km / 7,850 hrs / 48 mo (4 yrs)
16
Open Crankcase Ventilation
• Replace filter and o-ring gaskets when the OCV is serviced.
Greater than 20% Idle Time -
450,000 mi / 725,000 km / 13,500
hrs / 48 mo (4 yrs)
Greater than 20% Idle Time - 450,000 mi / 725,000 km / 13,500 hrs / 48 mo (4 yrs)
17
Drive Belts
• Refer to Poly V-belt and Fan Drive Belt Removal on page 89 - Replace for maintenance instructions.
Greater than 20% Idle Time -
600,000 mi / 965,000 km / 18,000
hrs / 72 mo (6 yrs)
16
Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
17
Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
ENGINE MAINTENANCE - Normal Duty/Line Haul
Y53-1166-1M1 (10/2020) 43
2
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