ELBOW 6V8077 - Caterpillar

3412 (38S) Industrial Engines, 3412 (81Z) Generator Set EnginesDescription of Change: New tube assemblies are used in the air lines group on these engines that are equipped with a single turbocharger. The new tube assemblies include bellows that will allow increased movement for expansion and contraction. The tube assemblies connect the exhaust manifolds to the turbocharger exhaust inlet.
Location of components in the 1N-4774 Air Lines Group. 123-8281 Tube Assembly (1). 123-8282 Tube Assembly (2). 8N-0879 Clamp (3).Adaptable To: The new 123-8281 Tube Assembly (1) replaces the 7E-3903 and 7E-3904 Tubes and the new 123-8282 Tube Assembly (2) replaces the 7E-3901 and 7E-3902 Tubes in the 1N-4774 Air Lines Group on the above engines. Caterpillar recommends using four new 8N-0879 Clamps (3) when installing the new tube assemblies. Tighten the clamps to a torque of 7.5 1.0 N m (67 9 lb in). Lightly tap around the clamp with a hammer. Then again tighten the clamps to a torque of 7.5 1.0 N m (67 9 lb in).