1. Height adjustment of the seat by lever
To raise the seat, get up from the chair raise the right lever upwards, the seat will begin to raise, then release the lever to lock the seat at the desired height.
In order to lower the seat, the right lever should be raised in the sitting position, the seat will begin to lower, then release the lever to lock the seat at the desired height.
Height of the backrest is adjusted by the rear handheel (to the left), then set the backrest to the required height and tighten the handwheel (to the right).
To move the backrest, loosen the handwheel (to the left), move the mechanism with the backrest to the preferred distance and tighten to the handwheel (to the right).