1.1 Head up ⑴ Press and hold HEAD UP button of remote, head actuator moves out, stop when released； 1.2 Head down ⑶ Press and hold HEAD DOWN button of remote, head actuator moves in, stop when released； 1.3 Foot up ⑵ Pressa and hold FOOT UP button of remote, foot actuator moves out, stop when released; 1.
