Paccar MX-11, Operator'S Manual, Page: 40 / 121

Less than 20% Idle Time - 375,000 mi / 600,000 km / 8,450 hrs / 48 mo (4 yrs)
7
Open Crankcase Ventilation
• Replace filter and O-Ring gaskets when the OCV is serviced..
Less than 20% Idle Time - 450,000
mi / 725,000 km / 13,500 hrs / 48 mo
(4 yrs)
Less than 20% Idle Time - 450,000 mi / 725,000 km / 13,500 hrs / 48 mo (4 yrs)
8
Drive Belts
• Refer to Poly V-belt and Fan Drive Belt Removal on page 89 - Replace for maintenance instructions.
Less than 20% Idle Time - 600,000
mi / 965,000 km / 18,000 hrs / 72 mo
(6 yrs)
7 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
8 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
38 Y53-1166-1M1 (10/2020)
2