SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE of a defective water pump or seal. Remove the build-up with a mild detergent cleaner and a brush. If coolant does not leak from the drain hole under normal conditions, do not replace the water pump. Coolant Inhibitor Element If the cooling system is protected by a supplemental coolant additive (SCA) element, the coolant must be tested at required intervals and the element replaced, if required. See Figure 18. Required test intervals are listed in Table 20. For SCA test procedures refer to How to Select Coolant and SCA Test Procedures in this guide. Use the coolant filter element required.
Refer to SPECIFICATIONS in this guide for element part number listing. The valves mounted on the filter adaptor head must be opened after the element is replaced. Figure 18 Coolant Inhibitor Element Item 14 – Cranking Motor For cranking motor (starter) information, contact an authorized Delco Remy® or Bosch® service center, depending on manufacturer. Item 15 Air System All the connections in the air system should be checked to make sure they are tight and leak free. Check all hoses and ducting for punctures, deterioration or other damage and replace, if necessary. All information subject to change without notice. 69 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION