HOMCOM A90-196 Instructions D'assemblage page 9

Tighten nut onto screw with included
wrench. Repeat on other two nuts.
20.
Insert seat post into main frame.
22.
Remove screw, nut, and washer from the
backrest support.
21.
Secure knob into place at desired height.
23.
Place the screw, nut, and washer to the
side for now.