854K Wheel Dozer Caterpillar

There are a total of six hydraulic screens on your machine. If the system becomes contaminated or if a major failure occurs, clean the screens. If a screen is damaged, replace the screen.

Illustration 1	g02585040

The screen for the steering pump is located inside the access door directly behind the cab.

Illustration 2	g02670136

There are two screens for the implement pump that are located inside the rear frame near the articulation joint. These screens are accessible from the right side of the machine.

Illustration 3	g02670416

The screen for the brake pump is located behind the hydraulic tank on the left side of the machine.

Illustration 4	g02670158

The screens for the fan pump and the fan motor are located behind the fan guard on the rear of the machine.

1. Stop the engine.

2. Remove the drain plug at the bottom of the filter housing. Allow the oil to drain into a suitable container.

3. Use a strap type wrench to remove the filter housing.

4. Remove the high-pressure screens from the filter housing.

5. Clean the screen, the drain plug, the filter housing, and the filter housing base with a clean, nonflammable solvent. Allow the components to dry.

6. Install the screen and the drain plug in the filter housing.

7. Install the filter housing on the filter housing base.

8. Start the engine. Make sure that the parking brake is engaged.

9. Operate the steering, the brakes, and the attachment in order to circulate the oil. Check the high-pressure screens for leaks.

10. Stop the engine.