A non-powered lift mechanism may be used with a vehicle, such as an ATV, having a support rack and a snowplow assembly including a blade that plows snow. The lift mechanism may include a frame that is mounted to the support rack; an input shaft pivotally mounted to the frame; a handle that is operatively attached to the input shaft; and, a cable having one end connected to the input shaft and a second end connected to the blade. The handle may be manually adjusted by the operator to pivot the input shaft to cause the cable to adjust the blade between: an operational/lowered position; and, a non-operational/raised position.