9
10
13
4
33
42
33
42
Step 5
1. Assemble the rotating shaft (13) on the leg curling supporting frame (10) in accordance with the picture, and then
place it in the assembled seat/cushion main frame (4). Use M10*20 hexagon socket pan-headed bolts (33) and
Φ
10 flat
pad (42) to fix and fasten the two tightly;