MAINTENANCE Cooling System Inspecting 3. Check the outside of the radiator and condenser for blockage by dirt or debris. Make sure the fins are not damaged, and straighten them if necessary. HOT COOLANT To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure. NOTE: Before doing this inspection, make sure to do either maintenance operation, "Coolant Concentration Checking," or maintenance operation, "Coolant Flushing and Changing." Inspect the cooling system as follows: 1.
Inspect the radiator, the condenser, the water pump, the engine oil cooler, the freeze plugs, and the heat exchanger for damage and leaks. 2. Check all pipes and hoses in the cooling system for damage and leaks. Make sure all pipes and hoses are properly positioned to avoid chafing, and are securely fastened. 86 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION