197.4 Checking the safety brakesDANGER - Do not use the s-max sella if the required braking effect (on one side or both sides)is not guaranteed because a reduced braking effect can lead to falling down the stairs. Contactthe manufacturer or your authorised dealer!WARNING - Check safety brakes without an occupant!There are safety brakeslocated on both sides of theclimbing unit . Activatethem for checking the effect.» Check the safety brakesbefore each use.Pull in the climbers to theirupmost position and tilt s-maxsella backwards.Test: s-max sella cannotbe pushed forward, onlybackwards = safety brakesactivatediManufacturer’srecommendation:Put your foot on thehousing and tilt the s-maxsella towards you. Seedetailed description inChapter 8.3.Single step modeActivate / deactivateLED glows = single stepmode is activated!Should you choose toturn off the single stepmode you can do so bypressing the appropriatebutton.» LED does not glow = singlestep mode is deactivated!iManufacturer’srecommendation:Only deactivate thesingle step mode,if the operator is ableto use the s-max sellasafely.DANGER - If the single step mode is deactivated, make sure to operatethe s-max sella correctly and safely! Otherwise it can lead to falling down the stairs!7.5 Single step mode