HEAD 7J9216 - Caterpillar

Take extreme care to insure the cleanliness of the hydraulic oil. Keep the hydraulic oil clean in order to extend the component life and assure the maximum performance.
Open the engine compartment. Refer to the Operation and Maintenance Manual, "Access Doors and Covers".
Illustration 1 g01350491
Remove hydraulic tank filler cap (1).
Remove the screen from the filler tube of the hydraulic tank.
Wash hydraulic tank filler cap (1) in clean, nonflammable solvent. Wash the screen in clean, nonflammable solvent. Clean the vent. Note: The drain for the hydraulic tank (3) is located on the bottom of the front frame of the machine.
Open the drain for the hydraulic tank (3) in order to drain the oil. Drain the oil in a suitable container.
Illustration 2 g01361196
Top view of the hydraulic tank with the cover removed.
Remove the suction strainer (4) inside the hydraulic tank. Install a new suction strainer in the hydraulic tank.
Close the drain for the hydraulic tank (3).
Install the screen in the filler tube of the hydraulic tank.
Refill the hydraulic tank with clean, filtered hydraulic oil. Refer to the Operation and Maintenance Manual, "Capacities (Refill)" and Operation and Maintenance Manual, "Lubricant Viscosities".
Park the machine on level ground. Check the hydraulic oil level. The oil level should be visible in the sight gauge (2). Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check".
Install hydraulic tank filler cap (1).
Close the engine compartment.