Hoist number 2 went down for an under voltage card issue. Hoist #1 was still out of commission waiting on an encoder to be replaced. At 5:00 P.M. we evacuated the mine due to two of our 3 conveyances being out of service leaving us only 3rd shaft. All miners were out of the mine and accounted for at 5:51 P.M. The hoist came back up at 6:40 P.M.