Abstract: Conventional apparatus for assembling a track chain tend to impose undesireable bending moments and residual loads thereon. The apparatus (22) of this invention overcomes these problems by providing a pair of movable pressure heads (26,28) registering with first and second contact points (142,144) on opposite ends of a chain link (134) and a pressure equalizing plate (68) for sensing the resistance force at each contact point (142,144) to direct an increased pressure to a selected one of the contact points (142,144) in response to the differential between the resistance forces at the contact points (142,144).

Abstract: A method and apparatus is disclosed for assembling articulated chain suitable for use in providing flexible track for heavy vehicles such as earth moving equipment, which chain comprises a plurality of links interconnected by coating, concentrically disposed pins and bushings. Means for providing semi-automatic operation of the apparatus, including indexing of the chain as assembled are described. Method steps and operation of the apparatus to avoid the introduction of bending moments in the previously assembled portion of the chain are disclosed.