Gymrex GR-MG 56 Manual De Instrucciones página 21

STEP I
a) Mount the side (right, left) machine support frames (1, 2) on the main frame
(3). For this purpose, apply the side support frames on both sides of the main
frame and align the hole axes. Insert the M12x100 screw with the M12 washer,
from the side of the right side support frame, routing it through all hole axes.
Secure the assembly, from the side of the left side support frame, with the M12
washer and M12 locknut.