To completely remove the collar from the shaft of the Hi-Lok, what technique is used?

The appropriate technique for completely removing the collar from the shaft of the Hi-Lok is to use collar pliers and twist. This method is specifically designed for the careful handling of Hi-Lok collars, which are precision fasteners used in aerospace applications. Collar pliers provide the necessary grip and leverage to effectively twist and remove the collar without damaging the underlying components or the shaft itself.

Using collar pliers allows for a controlled removal process, minimizing the risk of applying uneven pressure that could lead to mechanical failures or damage to the Hi-Lok assembly. Furthermore, this technique is consistent with best practices in aircraft maintenance and assembly, where precision and care are critical.

Other techniques, such as twisting off with fingers, may not provide the required force or control, leading to complications during removal. Drilling it out or using a hammer could result in damage to the shaft or surrounding components, posing significant safety risks and potentially requiring costly repairs or part replacements. Therefore, the correct choice emphasizes the importance of using specialized tools to ensure the safe and effective removal of fasteners in aerospace applications.