4
Remove four internal clamps
from the spacer bars by
removing grub screw and
sliding out.
5
Insert internal clamps into
both ends of the 750mm
horizontal rails and secure
by inserting grub screw and
tightening (not fully).
6
Connect first horizontal
rails at the bottom of posts,
leaving a 10mm gap between
underside of rail and surface
of base plate. Tighten clamp
screws to secure in place.