Gen 5 DD Platform Operators Manual NOTE: If any of the below conditions exist, it may be necessary to take the vehicle to an authorized Detroit™ service outlet. 1. Make a visual check for leaks at all engine-mounted lines and connections. 2. Inspect all hoses for leaks, and check all fittings, clamps and ties carefully. Look for cover damage and/or indications of twisted, worn, crimped, brittle, cracked or leaking hoses and lines. Hoses with their outer cover worn through or with damaged metal reinforcements should be considered unfit for further use and replaced. 3.
Make sure hoses are not resting on or touching shafts, couplings, or heated surfaces including exhaust manifolds, sharp edges, or other obvious hazardous areas. 4. Since all machinery vibrates and moves to a certain extent, clamps and ties can fatigue with age. To ensure continued proper support, inspect fasteners frequently and tighten or have them replaced as necessary. 5. Take immediate corrective action for any loose or cracked fittings or ruptured or worn through hoses. Inspection of the Lubricating System Inspection of the Lubrication System Detroit™ Gen 5 Heavy Duty engines are equipped with a single cartridge-style oil filter that is part of the oil coolant module.
Incorporated into the module is a drain back port, which allows residual oil to be returned to the oil pan when the filter is removed. This design, including the cartridge-style element, allows for a more environmentally safe oil change. The lubricating oil and filter should be replaced as recommended in the maintenance tables using the appropriate engine duty cycle, Refer to section "Preventive Maintenance Tables". Checking the Lubricating Oil Level The lubricating oil level should be inspected daily as part of the pre-start inspection, Refer to section "How to Check the Lubricating Oil Level".
If necessary, fill the engine to the proper level with the recommended viscosity and grade of engine oil Refer to section "Synthetic Oils and Additives". Checking the Lubricating System for Leaks Check as follows: 1. Inspect all lubricating oil lines for wear and/or chafing. 2. Check for oil leaks after starting the engine. NOTE: If any of the above conditions exist it may be necessary to take the vehicle to an authorized Detroit™ service outlet. All information subject to change without notice. 67 DDC-SVC-MAN-0217 Copyright © 2022 DETROIT DIESEL CORPORATION