Tool Support; Cam Tightness; Locking Handles; Ball Bearing Live Center - Powermatic 3520C Instrucciones De Funcionamiento Y Manual De Piezas

Figure 8-1: headstock, tailstock, tool support

8.2 Tool support

A 14" tool support is provided with your Lathe. It is
designed to allow adjustment for height, position on
the bed, and angle to the work.
Loosen locking handle (D, Figure 8-1) to slide
support base forward or back, and angle it to the
bed. Tighten locking handle securely before
operating Lathe.
Loosen small handle (E, Figure 8-1). Make sure
clamp bushings (inset, Figure 8-1) are properly
positioned to accept tool support post.
Adjust height of tool support and angle it to the work.
Tighten handle (E) before operating Lathe.

8.3 Cam tightness

If headstock, tailstock or tool rest base does not
properly tighten down against bed when the locking
handle is tightened, adjust as follows. Figure 8-2
uses tailstock as example.
1. Unscrew and remove stop bolt, and slide
tailstock off end of bed.
2. Turn tailstock on its side, and tighten lock nut
with a wrench. See Figure 8-2.
3. Mount tailstock on bed and test the adjustment.
When adjustments are complete, re-insert stop
bolt at end of bed.

8.4 Locking handles

Locking handles, such as B, Figure 8-1, can be
rotated to more convenient position. Lift up on
handle, rotate it on pin, then release it, making sure
it seats on pin.
Figure 8-2: cam adjustment

8.5 Ball bearing live center

The live center cap, shown in Figure 8-3, screws
clockwise onto the threads of live center body.
To remove cap from live center, first insert live
center pin through hole in the live center body as
shown in Figure 8-3. If pin will not insert at first,
rotate cap until pin can be inserted. The cap can
now be removed by holding the body stationary
while unscrewing cap.
Figure 8-3: live center cap removal

8.6 Indexer

The indexer has 48 evenly spaced holes concentric
to the spindle, and is used to create evenly spaced
features in a workpiece, while keeping the lathe
spindle locked; for example, when cutting flutes on
a spindle blank with a router, while the spindle blank
is secured between lathe centers. When the lathe is
powered, the digital readout can be used for easy
locating of index positions, as follows.
1. Turn on power switch behind headstock.
Spindle should remain off.
2. Push index position button (F, Figure 8-4).
Digital readout will change from RPM setting to
index setting.
3. Rotate workpiece by hand to desired position,
then push in index pin (G, Figure 8-4) and turn
workpiece slightly until pin engages hole.
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