Encoder Assembly
This assembly includes encoder switch, encoder wheel, encoder bracket, 1 button head screw, 2 flat head screws, 2 phillips pan screws, 2 hex nuts, and 1 split bushing.
If your machine is not giving correct lengths of tape, check to make sure this wheel is not spinning on the shaft. If it is, use pliers to hold the shaft and then tighten the fastener.