Advanced Bionics Sky CI M90 Manual Del Usuario página 17

Line up the pin with the hole in the earhook and gently push it through
the hole. The pin will move from one side of the sound processor,
through the earhook to the other side of the sound processor, holding
the earhook in place. The pin should not come out the other side.
If a small portion of the pin extends beyond the sound processor, use
the side of the tool to push the pin inwards so it lies flush with the sound
processor.
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