Merax MS199736 User Manual page 40

Place the back cushion (6) on seat backrest group (3)
with four M8*40mm (56) and plain washers M8 (59),
lock it through seat backrest group and tighten all
screws after the back cushion is well position.
EN
Loosen the seat knob (14) on the seat backrest group
(3) but not completely unscrew it, pull it outward and
insert the track pipe (9) into the seat backrest group
(3) (Please note that the direction of the track pipe
should be the direction of hole (A) facing the knob (14))
until the hole (A) of the track pipe pops into the seat
knob.
40