... screw, nut, nut shelf, bearing box, cross beam, push-off tube and candle moulding tubes, etc. 2.2 Performance 2.2.1 ... any spare parts are turning loose or tends to fall off, and clean the accumulated dirt on all parts of the machine ... bevel gear, lead screw, nut and nut shelf, move the cross rail and push the candle off tube. Put on the candle-holding ...