Step 4. Align bolt with the assembling holes, then assemble arm(E) to the sofa(D) by apes nuts . Use open-end wrench) to frighten Step 5! Place the plastic washer) onto leg{C & FJ, and then assemble the 4 1egs{C) onto the seal frame La) of chaise, and assemble the & legs(F) onto the seat frame(D) of 2-seal sofa.