Loosens and removes clamping plate, holding needles, or point in bar with screwdriver, and removes broken or worn needles. Positions metal gasket under clamping plate, replaces needles or points, and replaces and tightens clamping plate. Aligns and spaces needles or points, using $T3space gauge$T1 and pliers. May assist mechanic in aligning machine guide bars and sinkers.
