CAP AS-TRACK IDLER 1523421 - Caterpillar

Do not touch any part of an operating engine system. The engine, the exhaust, and the engine aftertreatment system can reach temperatures as high as 650 °C (1202 °F) under normal operating conditions. If the engine or the engine aftertreatment system unexpectedly fails, the temperature of the gas at the diesel particulate filter (DPF) may increase to 900°C (1652°F).At idle engine speed and/or zero vehicle speed, an operator can request a manual regeneration. Under this condition, the exhaust gas temperature can reach 650 °C (1202 °F). Otherwise automatic regeneration can produce exhaust gas temperatures as high as 450 °C (842 °F).Allow the engine system to cool before any maintenance is performed. Relieve all pressure in the air system, in the hydraulic system, in the lubrication system, in the fuel system, or in the cooling system before any lines, fittings or related items are disconnected.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 after the engine has stopped and the engine has been allowed to cool.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 lubricating components can cause personal injury. Do not allow hot oil to contact the skin. Also, do not allow hot components to contact the skin.Batteries
Electrolyte is an acid. Electrolyte can cause personal injury. Do not allow electrolyte to contact the skin or the eyes. Always wear protective glasses for servicing batteries. Wash hands after touching the batteries and connectors. Use of gloves is recommended.Clean Gas Induction Cooler and Components Prior to the Charge Air Cooler
The clean gas induction cooler (CGI) may contain a small amount of sulfuric acid. The use of fuel with a level of sulfur that is greater than 15 ppm may increase the amount of sulfuric acid that is formed. The sulfuric acid may spill from the CGI cooler during service of the engine and flow to components downstream. The sulfuric acid will burn the eyes, skin, and clothing on contact. Always wear the appropriate personal protective equipment (PPE) that is noted on a material safety data sheet (MSDS) for sulfuric acid. Always follow the directions for first aid that are noted on a material safety data sheet (MSDS) for sulfuric acid.