ROD 4D4681 - Caterpillar

At operating temperature, the engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot water or steam. Any contact can cause severe burns. Check the coolant level only after the engine has been stopped and the filler cap is cool enough to remove with your bare hand.Remove the cooling system filler cap slowly to relieve pressure.Cooling system conditioner contains alkali. Avoid contact with the skin and eyes and do not drink, to prevent personal injury.Allow cooling system components to cool before draining.Hot oil and components can cause personal injury. Do not allow hot oil or components to contact the skin.At operating temperature, the hydraulic tank is hot and can be under pressure. Remove the hydraulic tank filler cap only after the engine has been stopped and the filler cap is cool enough to remove with your bare hand.Remove the hydraulic tank filler cap slowly to relieve pressure.Relieve all pressure in air, oil, fuel or cooling systems before any lines, fittings or related items are disconnected or removed. Battery electrolyte contains acid and can cause injury. Avoid contact with the skin and eyes.