Assemble the main beam
A141
UNDER
A113
,
A114
at the FR ONT,
A115
and
A116
at the BACK .
A141
411
412
411
412
A211
411
412
412
411
QTY
1
#A141
QTY
1
#A211
11
Insert the screws from the outside, tighten nuts only 2-3 turns and leave loose.
Assemble profile
A211
, from the outside, to profiles
A113
,
A114
.