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• Loosen the Allen screw (4) with a 4 mm Allen key.
• Remove the Allen screw (4) together with the cover plate (3).
• Remove the pin (2). In doing so, please pay attention to the washers and spacers.
• Remove the strut.
Refitting the strut:
• Refit the parts in reverse order.
• To conclude, check all the mobility aid functions.