Feeder Bowl Drives Bowl feeder drives BF 10-15 (Reactive force compensation)Technical dataOperationg instructionBowl feeder drives BF 20-50 (Reactive force compensation)Technical dataOperating instructionsBowl feeder drives WV151 - WV310 (conventional)Technical dataOperating instructionBowl feeder drives WV401-402 (conventional)Technical dataOperating instruction WV401-1 to WV402-1 .