Weider Pro 450 L 831.15948.0 User Manual page 9

.
Attach the Seat (18) to the Seat Frames (8, 9)
with four M6 x 65mm Screws (32) and four M6
Washers (33). Start all four Screws, and then
tighten them.
18
8\
32
33
.
Attach the Backrest (19) to the Backrest
Brackets (5, 6) with four M6 x 65mm Screws
(32) and four M6 Washers (33). Start all four
Screws, and then tighten them.
See steps 3 and 4. Tighten the eight M8 x
42mm Bolts (34).
8
19
9//
5
33
32
32
32
33
9