Fig.16: Attach the seat board (N) and back board (M) by hex bolt (DD) and flat
washer (BB).
Fig.17: Attach hanging bar (O) to armrest (L1/L2) by hex bolt (EE) and flat
washer (HH).
Fig.18: Attach hanging bar (P) to armrest (L1/L2) by hex bolt (EE) and flat
washer (HH). (Remark: The hole of hanging bar (P) should face
downward.)
Fig.19: Attach hanging bar (P) to armrest (L1/L2) by hex bolt (DD) and flat
washer (BB).
Fig.20: Attach big hook (J) to hanging bar connecting tube (I).
Fig.21: Hang the hanging bar (O/P) to big hook (J) and tighten.