MAINTENANCE Item 5 – Turbocharger, Air-to-Air Charge Cooler Wastegated Turbochargers The turbocharger wastegate actuator is factory-calibrated and is not adjustable. Check actuator operation at the intervals shown in the maintenance schedule. Visually inspect the turbocharger mountings, intake and exhaust ducting and connections for leaks daily. PERSONAL INJURY EYE INJURY To avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before removing any component. To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure.
Check the lube oil inlet and outlet lines for leaks or restrictions to oil flow. Check for unusual noise or vibration and, if excessive, stop the engine and do not operate until the cause is determined. NOTICE: Do not exceed 30 psi (207 kPa) air pressure when checking wastegate actuator operation. Excessive air pressure can damage the actuator. Periodically inspect the air-to-air charge cooler (if used) for buildup of dirt, mud, etc. and wash off. Check the charge cooler, ductwork, and flexible connections for leaks and have repaired or replaced, as required. To verify correct wastegate actuator operation, apply 30 psi (207 kPa) of regulated shop air and watch for actuator rod movement.
Check turbocharger heat-insulating exhaust system blankets (if used) for damage on a daily basis. Torn, matted, crushed, oil-soaked or otherwise damaged insulation blankets must be replaced immediately. 62 All information subject to change without notice. DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION