To mount a workpiece onto the spindle dead center:
1.DISCONNECT LATHE FROM POWER!
2.Thoroughly clean and dry the tapered mating surfaces of the spindle bore, tapered sleeve, and the HSS MT#3 dead center.
3.To protect these mating surfaces from rust and corrosion that could make removing them difficult, apply a thin coat of light machine oil to these surfaces, then use a c lean shop rag to wipe the surfaces again. This will leave a minimal amount of oil on the mating sur- faces.
Note: After applying the oil and wiping the surfaces, do not touch the mating surfaces with your hands or other objects, which could deposit moisture or debris.
4.Insert the center into the sleeve and the sleeve into the spindle bore through the chuck or faceplate.
5.Install a lathe dog on the workpiece, then mount the workpiece between the spindle and tailstock centers with the tail of the lathe dog inserted into the chuck or faceplate (see Figure 36 for an example).
6.To remove the sleeve and center from the spindle, insert a piece of round bar stock or similar tool through the outboard end (on the left side of the headstock), then tap the sleeve loose.
Note: Hold onto the sleeve and center as you tap them loose to avoid dropping them and damaging the tip of the center or the bedways.
NOTICE
To avoid premature wear of the dead center or damage to the workpiece, always use lower spindle speeds and keep the tip of the dead center mounted in the tail stock well lubricated with an
Model G0554Z (Mfg 01/09+)
Using a Center in the Tailstock
When mounting long, slender workpieces that extend more than 2⁜1⁄2 times its diameter beyond the chuck jaws, use a center mounted in the tailstock to support it (see Figure 37 for an example).
Dead Center
Figure 37. Example of using a dead center
installed in the tailstock.
To mount a workpiece onto the tailstock dead center:
1.DISCONNECT LATHE FROM POWER!
2.Thoroughly clean and dry the tapered mating surfaces of the tailstock quill bore and the
3.To protect these mating surfaces from rust and corrosion that could make removing them difficult, apply a thin coat of light machine oil to these surfaces, then use a clean shop rag to wipe the surfaces again. This will leave a minimal amount of oil on the mating sur- faces.
Note: After applying the oil and wiping the surfaces, do not touch the mating surfaces with your hands or other objects, which could deposit moisture or debris.
4.Use the tailstock handwheel to feed the quill out from the casting at least 1", but for purposes of stability and accuracy no more than 2".