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Model G0773 (Mfd. Since 4/17)
Dead Centers
Figure 41. Example of using a dead center with
a faceplate and lathe dog.
Lathe
Dog
Figure 40 shows the MT#3 and MT#5 dead cen-
ters included with the lathe.
Figure 40. Dead centers.
MT#3 Dead
Center
MT#5 Dead
Center
A dead center is a one-piece center that, when
mounted in the tailstock, does not rotate with the
workpiece and is used to support long, slender
workpieces.
Use the dead center in the spindle for operations
where the workpiece rotates with the center and
does not generate friction.
1. DISCONNECT MACHINE FROM POWER!
2. Thoroughly clean and dry all threads and
mating surfaces of spindle bore and center,
making sure that no lint or oil remains on
these surfaces.
Note: This will prevent the tapered surfaces
from seizing due to operational pressures,
which could make it very difficult to remove
the center.
3. Mount chuck or faceplate onto spindle, which-
ever is correct for your operation.
4. Insert center into tapered spindle sleeve,
then insert center into spindle bore.
The
Figure below shows an example photo
of a dead center installed in spindle, using a
lathe dog and faceplate for turning between
centers.
Mounting Dead Center in Spindle
Removing Center from Spindle
To remove the sleeve and center from the spindle,
insert a piece of round bar stock (or similar)
through the outside end of the spindle. Have
another person hold onto the sleeve and center
with a gloved hand or shop rag, then tap the bar
stock to knock the sleeve loose.
MT#5 Dead
Center
Содержание G0773
Страница 100: ...Thread Dial Chart 98 Model G0773 Mfd Since 4 17 SECTION 11 APPENDIX Threading Feeding Chart ...
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