R3000H Load Haul Dump Caterpillar

Note: Clean the cab air filters more often in dusty conditions. Install a new filter if rips or tears are noticed, or a reduction of air circulation is noticed in the cab after cleaning the filter.

Return Air Filter

Illustration 1	g03069276
Rear view of typical air conditioning unit

1. Turn two screws (1) 90 degrees counterclockwise.

2. Remove cover (2) and the return air filter from the air conditioning unit.

3. Clean the return air filter using pressure air. When you use air pressure, the maximum air pressure should be 205 kPa (30 psi).

4. Install the filter, the cover, and the screws on the air conditioning unit.

Cab Pressurizer Filter

Illustration 2	g02747456

Note: When the debris reaches the full level on the precleaner, empty the precleaner.

1. Loosen the retaining nut and remove cover (1). Remove precleaner cup (2). Empty the precleaner cup.

2. Wash the cover and the precleaner cup in clean water and allow to air dry.

3. Install the precleaner cup and the cover. Tighten the retaining nut finger tight. Do not use a tool to tighten the retaining nut.

4. Loosen wing nut (4) and remove end cap (3). Empty the dust from the end cap.

5. Remove the wing nut on the filter element. Remove the filter element.

6. Clean the filter element with pressure air or wash the element in warm water and a nonsudsing household detergent. When you use air pressure, the maximum air pressure should be 205 kPa (30 psi). When you use water pressure, the maximum water pressure should be 280 kPa (40 psi).

7. If washed, rinse the element in clean water and air dry thoroughly.

8. Install the filter element and wing nut. Tighten the wing nut finger tight. Do not use a tool to tighten the wing nut.

9. Install end cap (3). Tighten wing nut (4) finger tight. Do not use a tool to tighten the wing nut.