to be aligned with cutout section 125a of plate 125 step 9 after select switch ms2 for the suction opening position is activated motor m7 stops plate 125 at a position in which plate section 125a underlies the desired suction opening for a first creel collector step 10 the time necessary for withdrawing the fiber waste collected by the filter of the creel collector is set and begins to run step 11 the fan motor m4 associated with the first creel collector is temporarily stopped to enhance the efficiency of the withdrawal of fiber waste from such collector step 12 a motor m3 associated with the first creel collector is activated and drives the fiber waste removing nozzle adjacent the filter step 13 fiber waste collected on the filter of the first creel collector is withdrawn into remover 120 until the time set by timer t2 expires step 14 the fan motor m4 associated with the first creel collector which fan motor was temporarily stopped in step 11 is again driven step 15 motor m7 is again driven so as to rotate plate 125 to the next desired suction opening position step 16 actuation of one of the selection switches ms3 stops motor m7 when the suction opening for the second creel collector overlies plate section 125a step 17 the time required for withdrawing the fiber waste collected by the filter of the second creel collector is set and begins to run step 18 a fan motor m6 for the second creel collector is temporarily stopped to enhance the efficiency of the withdrawal of the fiber waste.