ABSTRACT

The best way to avoid cost and problems associated with assembly is to avoid the need for assembly. Unfortunately, this is seldom an option because of the many inherent reasons for assembly. For instance, providing for relative movement between parts almost always requires separate parts and therefore assembly. Different materials such as an electrical conductor isolated by an electrical insulator require assembly. Use of purchased components such as a light bulb or hydraulic valve requires assembly. Service modules and replaceable wear parts require assembly.