LIFT FUNCTION: ~ To raise ot lower the chair's height: Pull the lever UP with force. The chair will. go.down while sitting vou lift your body. WARNINGS: « Po not stand up on the chair, « Do not use the chair as a ladder. ~ Use forgetting only one person at a time, = Al least every 4 months, check all bolts, screws and knobs to be sure they are tight. Do not use if parts are loose, damaged or missing. Failure to follow the above warnings could result in serious injury.