Greater than 20% Idle Time - 600,000 mi / 965,000 km / 18,000 hrs / 72 mo (6 yrs)
18
Aftertreatment System
• Refer to Diesel Particulate Filter (DPF) Service Strategy on page 91 - Wet Cleaning Strategy for maintenance instructions.
Greater than 20% Idle Time -
750,000 mi / 1,200,000 km / 24,000
hrs / 96 mo (8 yrs)
Greater than 20% Idle Time - 750,000 mi / 1,200,000 km / 24,000 hrs / 96 mo (8 yrs)
19
Cooling System
• Refer to Change Extended Life Coolant on page 63 for maintenance instructions.
Severe Duty/Vocational
Vocational vehicle applications include:
Agriculture, Concrete Mixers, Construction,
Crane, Dumps, Emergency/Fire, Heavy
Equipment, Loggers, Mining, Oil Field,
Snowplows, and Wrecker.
Severe Duty/Vocational - 15,000 mi /
24,000 km / 400 hrs / 6 mo
18
Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
19
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 - Severe Duty/Vocational
44 Y53-1166-1M1 (10/2020)
2
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