SUPPRESSION AR-SOUND 6I9699 - Caterpillar

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Note: This film is located near the hydraulic filler cap on machines that are filled with synthetic oil.Operate the machine for a few minutes in order to warm the hydraulic system oil.
Personal injury or death can result without releasing all of the hydraulic pressure.Release all the pressure from the hydraulic system before any lines are disconnected.
The machine should be on level ground. Lower the bucket to the ground and apply slight downward pressure. Engage the parking brake and stop the engine. Keep the armrest lowered. Turn the engine start switch key to the ON position. Push the parking brake switch. Move all of the hydraulic control levers while you press several times on each side of the auxiliary hydraulic control (if equipped) in order to relieve hydraulic pressure. Move the engine start switch key to the OFF position.
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Remove the hydraulic tank filler cap.
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Remove the access panel in the belly guard underneath the machine.
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Remove the plug from the end of the drain hose. Pull the drain hose through the access panel in the belly guard. Open the drain valve and drain the oil into a suitable container.
Close the drain valve and pull the drain hose back into the machine. Install the drain plug into the drain hose.
Change the hydraulic system filter. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Filter - Change".
Fill the hydraulic system oil tank. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" and Operation and Maintenance Manual, "Capacities (Refill)".
Maintain the hydraulic oil level approximately in the middle of the sight gauge.Check the oil level with the loader arms in the fully lowered position.Note: The oil must be free of bubbles. If bubbles are present in the oil, air is entering the hydraulic system. Inspect the suction hoses and hose clamps.
Install the hydraulic tank filler cap.