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Model G0746/G0749 (Mfg. Since 3/13)
-85-
2. Tighten the two pre-load bolts so they no lon-
ger contact the headstock.
3. Use a slide hammer to remove the two dowel
pins from the gap insert.
4. Tap the outside of the gap insert with a dead
blow hammer to loosen it, then remove it.
Gap Installation
1. Use mineral spirits and a clean lint-free rag
to clean the mating surfaces of the gap, bed,
and ways. If necessary, stone the mating sur-
faces to remove scratches, dings, or burrs.
2. Wipe a thin layer of light machine oil on the
mating surfaces.
3. Place the gap insert into the gap and use a
dead-blow hammer to align the insert with the
lathe bed.
4. Lightly tap the dowel pins back into their
respective holes until they are seated. This
process will further help align the gap insert
and bed mating surfaces.
5. Install all fasteners and lightly snug them in
place.
6. Mount a dial indicator with a magnetic base to
the top of the saddle to indicate alignment.
7. First test the peak of the two prisms of the
gap insert that the saddle rides on, then test
the flanks of the prisms.
8. Alternately tighten the gap bed cap screws
and tap the side of the gap insert into
alignment.
9. Inspect the gap alignment 24 hours later to
make sure the gap is still aligned. If neces-
sary, loosen the gap bed cap screws and
repeat Steps 7–8 until the insert is properly
aligned.
10. Loosen the preload bolts until they contact
the headstock and resistance can be felt,
then tighten them an additional
3
⁄4-turn.