Angle Adjustments
The taper angle is adjusted by loosening the two
cap screws at the ends of the dovetail slide on
the taper attachment. The angle adjusting knob
allows for fine control of the angle (
Figure 9
).
There are two scales, one at each end of the main
body. One is labeled for degrees and the other is
labeled for inches-per-foot (I.P.F.). Using these
scales will allow you to get close to the desired
taper, but finer adjustments should be made with
an indicator and test bar. Once the desired setting
is met, tighten the two cap screws. Double check
the setting to ensure accuracy.
OPERATION & ADJUSTMENTS
Figure 9.
Taper Attachment Adjustments.
3.
There are two gib screws, for making adjust-
ments, located just above and behind the
dovetail on the main body. To tighten the gib,
loosen the gib screw on the left (as viewed
from the front of the lathe) and tighten the
right screw. To loosen the gib, loosen the
right screw and tighten the left screw.
4.
The gib is properly adjusted when the slide
can be moved by hand with moderate force.
5.
Do not replace the support rod at this time.
Bottom Gib Adjustments
The bottom gib is mounted in the back inside edge
of the main body casting. Three set screws hold
it in place and are secured with nuts as shown in
Figure 9
. If the gib is too loose, finish problems
will occur. If the gib is too tight, the slide will not
move smoothly.
1.
Loosen the three nuts and apply tension
evenly to the three set screws. Use only
moderate pressure when tightening these set
screws. They should be tight enough to keep
the slide from rocking in the main body cast-
ing. Check by rocking the slide by hand.
2.
When satisfied with your results, tighten the
nuts while maintaining the set screw posi-
tion. Double check the slide to ensure that it
moves smoothly. Re-adjust if necessary.
3.
Re-attach the support rod to the main body.
Deadman Operation
To use the taper attachment, tighten the clamp-
ing screws on the deadman to secure it to the
lathe bed. When not in use, loosen the clamping
screws. Removal of the deadman or the taper
attachment is not necessary when changing from
taper turning to straight turning.
Angle
Adjusting Knob
Bottom Gib
Screws
Angle Lock
Screws
Top Gib Adjustments
The top gib is mounted to a slide and moves
along the dovetail on the main body. The slide
maintains the motion of the cross slide to produce
the taper. If the gib is too loose, the angle can be
affected and the finish will suffer. If the gib is too
tight, the slide will not move freely.
1.
To adjust the top gib, begin by removing the
cap screw that holds the support rod to the
main body.
2.
Adjust the dovetail angle to zero.