MAINTENANCE Item 6 Fuel Filters The final filter is housed within the fuel filter module. The filter element filters particles down 4 micron and is snapped into the cap. Item Air System Air Cleaner The air cleaner element should be inspected per the maintenance intervals or more often if the engine is operated under severe dust conditions. Figure 29 Minor Rib Cracking Auto Tensioner Auto tensioners are usually maintenance free for the life of the engine. However, routine inspections should be performed. Uneven belt wear can indicate a loose, wore out, or bad bearing on the auto tensioner.
A build up of dirt or grime around the front bearing surface of the wheel can indicate a future bearing failure due to inadequate lubrication. Replace the element, if necessary. Check the gaskets for deterioration and replace, if necessary. If the dry type air cleaner is equipped with an aspirator, check for aspirator damage or clogging. Clean, repair or replace, as necessary. Item 5 – Fuel / Water Separator Incorporated into the fuel filter module is a fuel/water separator. The separator removes emulsified water as well as droplets and is located in the lower compartment of the fuel filter module. An optional water in fuel sensor will indicate when the trapped water needs to be drained.
If the water in fuel sensor is not available, periodic draining of the trapped water should be performed. 80 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION