Merax MS199736 Benutzerhandbuch Seite 41

Install the assembled seat backrest groups (3) to (9)
into the rear main frame (5), lock track pipe (9) into
rear main frame with four screws M8*16mm (40) and
plain washers M8 (59).
8
EN
Keep the hand holder (28) of the seat handlebar (10) up.
Connect the hand holder into the seat backrest group (3)
with two screws M8*45mm (49), spring washers M8 (83) and
arc washers M8 (42), and this procedure should avoid the
screw breaking the heart rate line, then directly lock it. See
the illustration in the lower right corner, match and link the
heart rate line of seat handlebar (7) with the heart rate line
of rear main frame (78).
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