BOLT 3039441 - Caterpillar

Coolant
When the engine is at operating temperature, the engine coolant is hot. The coolant is also under pressure. The radiator and all lines to the heaters or to the engine contain hot coolant.Any contact with hot coolant or with steam can cause severe burns. Allow cooling system components to cool before the cooling system is drained.Check the coolant level only after the engine has been stopped.Ensure that the filler cap is cool before removing the filler cap. The filler cap must be cool enough to touch with a bare hand. Remove the filler cap slowly in order to relieve pressure.Cooling system conditioner contains alkali. Alkali can cause personal injury. Do not allow alkali to contact the skin, the eyes, or the mouth.Oils
Hot oil and hot components can cause personal injury. Do not allow hot oil to contact the skin. Also, do not allow hot components to contact the skin.Remove the hydraulic tank filler cap only after the engine has been stopped. The filler cap must be cool enough to touch with a bare hand. Follow the standard procedure in this manual in order to remove the hydraulic tank filler cap.Batteries
The liquid in a battery is an electrolyte. Electrolyte is an acid that can cause personal injury. Do not allow electrolyte to contact the skin or the eyes.Do not smoke while checking the battery electrolyte levels. Batteries give off flammable fumes which can explode.Always wear protective glasses when you work with batteries. Wash hands after touching batteries. The use of gloves is recommended.