Gymrex GR-MG 50 Bedienungsanleitung Seite 25

a) Fasten the backrest bracket (9) with the backrest frame and seat (14) using
M12x110 screws, M12 washers and M12 locknuts.
b) Place the backrest (4) and seat (2) on the backrest frame and seat (14).
Attach the backrest from the bottom with M8 washers and M8x55 screws,
and the seat with M8 washers and M8x25 screws.
All connections of the machine should be fixed and pressed correctly. After
completing the assembly activities, it is allowed to start working with the
machine.
Before each use, adjust the height of the adjustment bracket according to your
preferences. The height of the machine is adjusted by releasing the adjustment
lock and extending or sliding the bracket. After determining the desired working
height, lock the bracket by mounting the adjustment lock in a given hole.
NOTE! After each adjustment, remember to check that the adjustment lock
has been seated correctly.