Operator’s Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 21 DO NOT attempt repairs you do not understand. If you do not have the proper tools/knowledge to perform the repairs correctly, MACK recommends contacting your nearest MACK Truck dealer for all necessary repairs. When starting an engine after repairs have been made to the fuel or injection system, prepare equipment for shutting off the engine intake air and/or fuel supply (to stop the engine), in case there is an over speed on start-up. Start the engine only from the driver seat.
Never operate the starter motor across the starter terminals or the batteries as this could bypass the engine neutral-start system as well as causing damage to the electrical or electronic systems. Compressed Air and Water Asbestos Information Note: The MACK engine and replacement parts for it shipped from the factory are asbestos free. MACK recommends the use of only genuine MACK spare parts. Never use any parts that contain or are thought to contain asbestos. Exposure to asbestos fibers can create serious health risks, including death. Fluid Penetration DANGER Compressed air can cause serious personal injury.
When using compressed air for cleaning, wear a protective face shield, protective clothing and protective shoes. Pressurized water could cause particles and/or hot water to be sprayed in your direction and cause personal injury. The maximum air pressure must be below 30 psi (200 kPa) for cleaning purposes. DANGER Always use a piece of paper or cardboard when checking for a leak. Escaping fluid under high pressure, even a pin-hole sized leak, can penetrate body tissue, causing serious injury or death. If fluid is injected into your skin, immediate treatment must be administered by a doctor familiar with this type of injury.