Impex POWERHOUSE SM 3000 Owner's Manual page 19

STEP 5 (See Diagram 5)
A.) Place the Seat Pad (#14) onto the Seat Support Frames (#6). Align the holes and
secure it with four M8 x 2" Allen Bolts (#37) and
B.) Place the Backrest Board (#15) onto the Backrest Supports (#7). Align the holes
and secure it with four M8 x 2" Allen Bolts (#37) and
5/8" Washers (#40).
DIAGRAM 5
18
5/8" Washers (#40).