DR.ÖTEK MTXE Manual De Usuario página 10

button (silver button) on the lower stem, insert it into the middle stem,
and adjust the depth that it inserts, which can adjust the total length of
the stem, so that you can straighten your arm and detect it comfortably
(see graph 3).
graph 3
4. Release the screws under the support arm to separate the support
arm and fit it on the upper stem (see graph 4).
graph 4
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