Use and Care Manual

15
13.5 Half Nut Gib adjustment
1. Remove the thread dial assembly by
unscrewing the screw (D, Fig. 21).
2. Loosen three hex nuts (E, Fig. 21) found on
the side of apron, and turn three set screws (F,
Fig. 21) equally with a hex wrench.
3. Adjust properly for wear and play. Hold socket
set screw firmly with a hex wrench and tighten
hex nut to lock in place. Note: over
adjustment will cause excessive premature
wear on gib and mating parts.
Figure 21
13.6 Headstock Alignment
The headstock has been aligned at the factory and
should not require adjustment. However, if
adjustment is deemed necessary, follow the
procedure below to align the headstock.
1. Using an engineer's precision level on the
bedways, make sure the lathe is level side to
side and front to back. If the lathe is not level,
correct to a level condition before proceeding.
Re-test alignment if any leveling adjustments
were made.
2. From steel bar stock of approximately two
inches in diameter, cut a piece approximately
eight inches long.
3. Place two inches of bar stock into chuck and
tighten chuck. Do not use the tailstock or
center to support the other end.
4. Set up and cut along five inches of the bar
stock.
5. Using a micrometer, measure the bar stock
next to the chuck and at the end. The
measurement should be the same.
6. If the measurements are not the same and
adjustment is required, loosen the four bolts
that hold the headstock to the bed. Do not
loosen completely; some drag should remain.
7. Loosen two hex nuts found on the two
adjusting bolts located on the backside of
headstock just above the motor mount bracket.
Adjust the bolts for alignment and tighten hex
nuts. Tighten the headstock bolts and make
another cut. Keep adjusting screws after each
cut until the bar stock measurements are the
same. Tighten all headstock bolts and jam
nuts on adjusting screws.
13.7 Removing Gap Bridge
1. Using an open end wrench, tighten the two
hex nuts (A, Fig. 22). This will cause the taper
pins (B, Fig. 22) to release. Remove the taper
pins.
2. Remove the four hex socket cap screws (C,
Fig. 22) with a hex key wrench.
3. Gap bridge can now be removed.
13.8 Installing Gap Bridge
1. Clean the bottom and the ends of the gap
bridge thoroughly.
2. Set gap bridge in place and align.
3. Remove nuts (A, Fig. 22) from the taper pins
(B, Fig. 22).
4. Slide taper pins in their respective holes and
seat using a mallet. Install nuts on the taper
pins finger tight.
5. Install four socket head cap screws (C, Fig. 22)
and tighten securely.
Figure 22