RSP-205 BACK TILT Push forward the lever to adjust the angle of the back. Pull backward the lever to lock the back angle. When you tilt back the chair and lock it with an angle, you need to push forward the lever meanwhile give a pressure by your body leaning on the chair backrest to unlock. RETOUR INCLINEZ ARM HEIGHT ADJUSTMENT Appuyez sur le levier pour régler l'angle de l'arrière. Lift the levers on the chair arms to allow Tire vers l'arrière du levier pour verrouiller l'angle arrière.