D250E Series II and D300E Series II Articulated Trucks Caterpillar

Both cab air filter elements must be serviced at regular intervals. Operating conditions will influence the service interval for the cab air filter elements. Inspect the cab air filter elements more often in very dusty conditions. Both cab air filter elements are located in the side wall of the cab forward of the cab door.

1. Park the machine on a level surface. Ensure that the parking brake is fully engaged. Lower the dump body and stop the engine.

Show/hide table



Illustration 1	g00603195

2. Remove two screws (1) and retainer (2) in order to allow removal of the internal filter element (3).

Show/hide table



Illustration 2	g00613944

3. Loosen latch (4) and lift off door (5) in order to allow removal of the external filter element (6) .

4. Remove the two filter elements (3) and (6) for inspection.

5. Clean the inside of both cab air filter housings.

6. Inspect each filter element. If the pleats or the seals are damaged discard the filter element. Replace a damaged filter element with a new filter element.

7. If the filter element is not damaged, clean the filter element by using pressure air. The maximum air pressure for cleaning is 205 kPa (30 psi).

Show/hide table



Illustration 3	g00613945

8. When you clean the inside pleats and the outside pleats, direct air along the pleats. Do not position the air nozzle closer than 160 mm (6 inch) from the filter element. The filter elements may be washed with warm water and nonsudsing household detergent. Rinse the filter element in clean water and air dry the filter thoroughly.

9. Install the two filter elements (3) and (6) with cleaned filter elements or new filter elements.

10. Replace retainer (2) and two screws (1) in order to secure the internal filter element.

11. Replace door (5) and tighten latch (4) in order to secure the external filter element.

12. Replace both filter elements if the filter elements have been in service for one year.