A NON INJURY ACCIDENT OCCURRED WHEN 4 MINERS BOARDED THE A SHAFT HOIST & STARTED UP THE SHAFT. AS THE HOIST ASCENDED A NOISE WAS NOTIFIED AT ONE OF THE WEAR SHOES FOR THE GUIDE HAD BROKEN BOLTS WERE OBSERVED LYING ON THE FLOOR OF THE CAGE. WHEN THE CAGE REACHED THE SURFACE MAINTENANCE NOTIFIED THE SHIFT SUPERVISOR & THE CAGE WAS REMOVED FROM SERVICE. PUT BACK INTO SERVICE 6:15AM