General Information 00 Determining Scheduled Maintenance Intervals: 00–01 Determining Scheduled Maintenance Intervals (100 000 kilometers) with minimal city or stop-and-go operation. Examples of Schedule III usage are: re- gional delivery that is mostly freeway miles; interstate transport; or any road operation with high annual mileage. Performing regular maintenance on your Freightliner vehicle will help ensure that your vehicle delivers safe reliable service and optimum performance for years to come. Failure to follow a regular mainte- nance program can result in inefficient operation and unscheduled down time. NOTE:
Maintenance instructions in this manual are based on average vehicle use and normal operating conditions. Unusual vehicle operating conditions may require service at more frequent intervals. To determine the correct maintenance intervals for your vehicle you must first determine the type of ser- vice or conditions in which the vehicle will operate. Generally, most vehicles operate under conditions that fall within one of the three types of service de- scribed. Before placing your new vehicle in service, determine the type of service (Service Schedule I, II, or III) that applies to the intended use of the vehicle.
After determining the vehicle’s type of service, refer to the Maintenance Service Table or the Vehicle Maintenance Schedule Tables, to determine how often maintenance should be performed. When the vehicle reaches the distance given for a maintenance interval, see the applicable Mainte- nance Interval Operations Table for a list of the main- tenance operations to be performed at that mainte- nance interval. Use the maintenance operation numbers to find detailed instructions in the manual on each operation. Types of Service Service Schedule I (severe service) applies to ve- hicles that annually travel less than 6000 miles (10 000 kilometers) or that operate under severe condi- tions.
Examples of severe service, Schedule I usage include: operation on extremely poor roads or where there is heavy dust accumulation; constant exposure to extreme hot, cold, salt-air, or other extreme cli- mates; frequent short-distance travel; construction- site operation; city operation (fire truck); or farm operation. Service Schedule II (short-haul transport) applies to vehicles that annually travel less than 60,000 miles (100 000 kilometers) and operate under normal con- ditions. Examples of Schedule II usage are: opera- tion primarily in cities and densely populated areas; local transport with infrequent freeway travel; or high percentage of stop-and-go travel.
Service Schedule III (long-haul transport) is for ve- hicles that annually travel more than 60,000 miles Heavy-Duty Trucks Maintenance Manual, October 2009 00/1