Steren K-600 Manual De Instrucciones página 40

3.- Place a screw (P22) and a pulley wheel (P23) in the upper right side
of the leg. Put a nylon pad (P13) and a spring on the screw (inside of
the leg). Screw the leg into the plastic connector (P29), once the screw
cross the connector, fasten the screw and the leg using a nut (P19)
ENGLISH-13