CAMSHAFT 2277508 - Caterpillar

* Inspect all air ducts and gasket connections at every oil change. Constant torque hose clamps should be used to secure the ducts. Refer to the Operation and Maintenance Manual, "Torque Specifications" in the Maintenance Section for the proper torques.* Check all welds for cracks. Check the mounting brackets to ensure they are secure and in good condition.* Examine the aftercooler core fins for external damage, dirt, debris, salt corrosion, etc. Use a firm stainless steel brush to remove dirt, debris, salt, etc.* Use compressed air to clean core blockage due to dirt and debris.
Pressure air can cause personal injury. When pressure air is used for cleaning, wear a protective face shield, protective clothing, and protective shoes.
A hose failure or significant system leak will cause a large drop in boost pressure and power. The engine can be operated at this power level long enough to reach a safe stop or repair area. Sustained operation under this condition should be avoided.
A slight reduction in power or response, or a small increase in exhaust temperature, may indicate a small air leak in the charge air cooler core or piping. Whenever air-to-air aftercooler parts are repaired and/or replaced, a leak test is highly recommended.Refer to SEHS8622, "Using the FT-1984 Air-To-Air Aftercooler Test Group", for the correct procedure to use when performing a leak and pressure test, or consult your Caterpillar dealer for assistance.