Determining Scheduled Maintenance Intervals

Description

 Category I (urban transport) applies to vehicles that annually travel up to 20,000 miles (32 000 kilometers).

 Category II (rural transport) applies to vehicles that annually travel over 20,000 miles (32 000 kilometers).

The table under Vehicle Maintenance Schedule Table shows the two categories of vehicle usage. For each category, the appropriate distance and time intervals are given for performing initial maintenance and for repeating each maintenance operation set (M1 through M3).

The table under Maintenance Interval Table shows which maintenance operation set must be performed at the actual distances (miles and kilometers) or actual months of operation for each maintenance category. The schedule of actual distances (and months) is based on the intervals given in the Vehicle Maintenance Schedule Table.

The table under Maintenance Operation Sets lists, in numerical order, the text reference numbers and descriptions of all maintenance operations, and indicates all maintenance operation sets at which each operation must be performed.

Use

Before placing your new vehicle in service, determine the maintenance category (Category I or II) that applies to your intended use of the vehicle. See the Vehicle Maintenance Schedule Table to determine the distance (or time) interval at which each maintenance operation set must be performed for your category of vehicle.

When the vehicle reaches the actual distance (or months) given for an interval, see the Maintenance Interval Table to find the maintenance operation set that applies to that interval. Then perform the maintenance operations listed in the applicable Maintenance Interval Operations table. Use the maintenance operation reference numbers to find instructions in the manual for completion of each operation.

Complete each maintenance operation set at the required interval. Then, when you have completed maintenance operation set M3 under the 12th Maintenance Number listed in the Maintenance Interval Table, repeat the pattern. The 13th Maintenance Number will begin at maintenance operation set M1, under the 1st Maintenance Number listed in the Maintenance Interval Table.

To determine the distance/months for the 13th Maintenance Number, add your category's distance/months for the 1st Maintenance Number to the distance/months for the 12th Maintenance Number, then perform the operations listed in the applicable table in the Maintenance Interval Operations tables. For the 14th Maintenance Number, add the distance/months for the 2nd to the distance/months for the 12th; continue this pattern for each successive Maintenance Number.