Powermatic 3520B - Manual (Page 15)

15
Live Center and Cone
The live center cone, shown in Figure 17,
screws clockwise onto the threads of the live
center body.
To remove the cone from the live center, first
insert the live center pin through the hole in the
live center body as shown in Figure 17. If the pin
will not insert at first, rotate the cone until the pin
can be inserted. The cone can now be removed
by holding the body stationary while unscrewing
the cone.
Indexer
The indexer allows you to cut evenly spaced
features in a workpiece while keeping the Lathe
headstock spindle locked; for example, when
cutting flutes on a spindle blank with a router,
while the spindle blank is secured within the
Lathe centers.
There are 12 holes in the spindle collar spaced
30° apart, and 4 holes in the headstock casting
which accept the index pin (see Figures 18 and
19). The combination of holes will allow you to
mark your workpiece for evenly spaced features.
1. To use the indexer, thread the index pin
(Figure 18) into one of the four holes until
the index pin engages the spindle and
prevents it from turning. This will be your
first indexing position.
2. Unscrew and remove the index pin, and
look down the hole, carefully counting the
number of holes as you rotate the spindle
using the handwheel. Continue to rotate the
spindle until you reach the hole needed for
your second flute cutting, then re-insert the
index pin.
3. Refer to the more detailed instructions and
chart on page 28 to determine in which
holes to place the index pin relative to the
number of flutes desired in your workpiece.
NOTE: Remove index pin before turning on
the Lathe.
Centers – Installing and Removing
1. Disconnect Lathe from power source.
2. To install a spur center or live center (the
spur center should first be mounted to your
workpiece; see under “Operation” for more
details), clean the tapered end of the center
and the inside of the headstock taper
spindle, then push the center into the
headstock spindle.
Figure 17
Figure 18
Figure 19