Routine Preventive Maintenance Inspection of Hoses with Extended Service Life A hose has a finite service life. With this in mind, inspect hoses as follows: NOTE: Fire-resistant fuel and lubricating oil hose assemblies do not require automatic replacement after five years of service or at major overhaul, but should be inspected carefully before being put back into service. 1. Thoroughly inspect all hoses at least every 500 operating hours (1,000 hours for fire-resistant fuel and lubricating oil hoses) and/or annually. Look for cover damage and/or indications of twisted, worn, crimped, brittle, cracked or leaking lines.
Hoses with their outer cover worn through or with damaged metal reinforcements should be considered unfit for further service. 2. Replace all hoses in and out of machinery during major overhaul and/or after a maximum of five (5) years of service. Inspection of the Turbocharger and Charge Air Cooler Inspect turbocharger and charge air cooler as follows: 1. Visually inspect the turbocharger mountings, intake and exhaust ducting, and connections for leaks daily. 2. Check the lubricating oil inlet and outlet lines for leaks or restrictions to oil flow. WARNING: PERSONAL INJURY To avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before removing any component. 3.
Check the turbocharger for unusual noise or vibration and, if excessive, stop the engine and do not operate until the cause is determined. 4. Periodically inspect the air-to-air charge air cooler for buildup of dirt, mud, or other debris. Clean as necessary. 5. Check the charge air cooler, duct work, and flexible connections for leaks and repair or replace as required. Inspection of the Battery Inspect the battery as follows: WARNING: PERSONAL INJURY To avoid injury from accidental engine startup while servicing the engine, disconnect/disable the starting system. 78 All information subject to change without notice. Copyright © 2017 DETROIT DIESEL CORPORATION DDC-SVC-MAN-0192