Navistar WorkStar Series User Manual

Maintenance Intervals And Specifications
Lubrication and Maintenance Interval — Recommended Synchronized Intervals (cont.)
System Item Intervals Special Interval (3) : miles (km) / hours / months
Engine Oil Level – Inspect A, B
Fan Belt – Inspect A, B
Air Filter – Check Restriction A, B
Air Induction System – Check looseness/leaks A, B
Air Filter – Replace At Restriction Indication or 60 months.
Engine Oil and Filter(s) – Replace Refer to Engine Operation and Maintenance Manual.
Fan Belt Auto Tensioner – Inspect Refer to Engine Operation and Maintenance Manual.
Fuel Filter – Drain Separated Water
Refer to Engine Operation and Maintenance Manual.
Engine
Fuel Filter – Replace Refer to Engine Operation and Maintenance Manual.
Fuel Tank(s) – Drain and Flush (Note 3) 100,000(160,000)/–/12Fuel Tank
Fuel Sender, Hose Connections – Check for Loose
Connectors
12 months
Pipes/Muffler – Inspect for leakage/looseness A, BExhaust
System
Diesel Particulate Filter (DPF) – Clean out ash Refer to Engine Operation and Maintenance Manual
Clutch Release Bearing/Shafts/Fork – Lubricate Highway – 10,000 miles (16,000 km)/–/1
City/Severe Service: – /250/1
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Navistar WorkStar Series Specifications

General

Brand	Navistar
Model	WorkStar Series
Category	Trucks
Language	English