SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE When to Service the Dry Type Air Cleaner NOTICE: If the engine overheats and the coolant level is satisfactory, the cooling system may require cleaning with a descaling solvent and backflushing. Authorized Detroit Diesel service outlets are properly equipped to perform these services. Replace dry type air cleaner elements when the maximum allowable air cleaner restriction (20 inches of water or 5.0 kPa) has been reached or annually, whichever comes first. Some air cleaners are equipped with a restriction indicator which aids in determining the servicing interval.
In addition to the cleaning procedure, other components of the cooling system should be checked periodically to keep the engine operating at peak efficiency. Cleaning and/or reusing dry paper type air cleaner elements is not recommended unless the cleaning method used removes clogging without damaging the element. Inspection and cleaning of elements must be done in accordance with the air cleaner manufacturer's recommendations, if any. Hoses Cooling system hoses should be inspected and any hose that shows obvious signs of damage or feels abnormally soft or hard should be replaced. Damaged clamps should also be replaced. All external leaks should be corrected as soon as detected. NOTE:
If Detroit Diesel Power Cool antifreeze/coolant (or equivalent fully formulated, precharged antifreeze is used, a precharge element is not required. Coolant inhibitor levels must be checked at the intervals listed in Table 20. All information subject to change without notice. 107 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION