12
Figure 7-5: tool rest
7.6
Tool rest extension (OPTIONAL)
See Figure 7-6.
The tool rest extension (optional accessory,
#JWL1440-TREA, see your dealer to order)
mounts to the tool rest base and offers greater
reach for the tool rest when turning off the bed,
when the headstock is at the opposite end. See
Figure 7-6.
Make sure the clamp bushings (K) are pulled apart
sufficiently to accept tool rest post.
Figure 7-6
7.7
Locking handles
Locking handles, such as H, Figure 7-5, are
adjustable. Simply lift out on handle, rotate it on the
pin, then release it, making sure it seats itself on
the pin.
7.8
Spindle indexing
See Figure 7-7.
Indexing 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 hand-held router, while the
spindle blank is secured between lathe centers.
The JWL-1840EVS lathe provides 36 indexing
positions at 10-degree increments.
1. Rotate spindle using handwheel until index pin
(L, Figure 7-7) aligns with desired hole.
2. Screw index pin into hole until it engages
spindle.
3. Perform desired procedure.
4. Unscrew index pin until spindle is released.
Rotate spindle to next desired hole, and
repeat.
Disengage index pin before
starting lathe.
IMPORTANT:
Do not use index pin to lock spindle,
which will cause unnecessary wear to the pin. Use
spindle lock for this purpose.
Figure 7-7: index pin
7.9
Spur center: Installing/removing
The spur center is installed into the headstock
spindle. The center should first be mounted to your
workpiece, and then installed into the spindle. See
section 9.4
.
1. Disconnect lathe from power source.
2. Clean tapered end of center, and inside of
headstock spindle, then push center into
headstock spindle.
3. To
remove
a center, first remove workpiece
from lathe. Insert knockout rod (Figure 7-8)
through hole in handwheel and tap the end of
spur center.
IMPORTANT:
Hold the center by either
placing your thumb and forefinger on outside
diameter of spur center, or wrapping the center
with a rag. The center can be damaged if
allowed to fall.
Figure 7-8: removing spur center
