To adjust the overall height of the backrest
loosen the two screws in the middle of the
backrest, adjust to the required position and
retighten securely. The height can be fine
tuned with the user in the seat.
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To change the angle loosen the screw at the
bottom of the backrest spine, adjust to the
required position and retighten the screw
securely.
The backrest angle can be adjusted with the
user in the seat. The backrest spine has a
useful angle indicator designed to indicate
the preferred position or back angle for
different activities.