| 摘要 |
A tool used to maintain proper alignment and centering of the spring during retrofit operations (such as retrofit operations to create a self-steering axle. In most cases, four alignment tools, according to the present invention, are used to maintain spring/hanger alignment and centering during retrofit. More specifically, two springs (one at each end of the axle) must be held in alignment, and one tool is used at each longitudinal end of each spring, thereby making a total of four spring/hanger junctures where alignment must be established and maintained and a corresponding total of four tools to maintain this alignment. The tools are removed from the spring/hanger junctures when the retrofit is completed.
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