How to Procedures Use the following minimum working distance between the high-pressure nozzle and the surface being cleaned: Approximately 28 in. (700 mm) for circular pattern jets Approximately 12 in. (300 mm) for 25-degree flat jets and dirt cutters Power clean the engine as follows: 1. Allow engine to cool down to room temperature before spraying the engine. NOTICE: Avoid all of the electrical connections with direct water or steam spray or damage can result. 2. Thoroughly clean the entire engine using a steam cleaner or high pressure washer with mild soap and warm water. WARNING:
EYE INJURY To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure. NOTE: Do not use compressed air or pressurized water to clean or dry the engine if any part of the engine is disassembled. 3. Once the engine is clean, blow the electrical connectors dry with compressed air to remove most of the standing water. 4. Allow the engine to dry completely before making any kind of repair. 5. When reassembling, ensure that there is no standing water in any electrical connectors before seating the plug.
Cleaning/Flushing the Cooling System Collect the used coolant, cleaning solutions, and washing liquids and dispose of them in an environmentally responsible manner. Degrease as follows: WARNING: 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. 1. First remove debris (such as dust, insects) from the fins of the radiator grille. 94 All information subject to change without notice. Copyright © 2017 DETROIT DIESEL CORPORATION DDC-SVC-MAN-0192