Step 3:
According to the assembly drawing, use round head screw M8X50 ( 1 ), flat washer M8
( 8 ) and nut M8 ( 7 ) to assemble backrest structure ( 13 ) and cushion structure ( 10
) , then tighten them with wrench.
Step 4:
According to the assembly drawing, use screws M8X45 ( 26 ) and spring washers M8
( 13 ) to assemble backrest and backrest structure, then tighten with wrench.
Serial
Accessory
number
drawing
6
7
1
Serial
Accessory
number
drawing
25
26
Name
Flat washer(M8)
Nut(M8)
Round head screw
(M8X50)
Name
Spring washer
(M8)
Screw
(M8X45)
Quantity
2
2
2
Quantity
4
4