Checking Alignment Between Centers; Indexing - General International 25-300QC M1 Setup & Operation Manual

14” x 30” wood lathe
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CHECKING ALIGNMENT BETWEEN CENTERS

There is a small amount of play built into the head-
stock on the bed to allow the headstock to pivot freely.
Whenever the headstock is pivoted back from the out-
board position, the alignment between the headstock
and tailstock centers should be double checked and
adjusted as needed.
1. Pivot the headstock to its normal spindle turning
position (0º) and lock it in place.
2. Install a spur center in the headstock and a
live center in the tailstock.
3.
Release the tailstock locking lever and advance
the tailstock on the bed A until the points of the 2
centers just barely touch each other.

INDEXING

For advanced turners, the indexing features on this 25-300QC M1 lathe allows the user to lock the spindle in place
at 36 evenly spaced 10° intervals while the workpiece is installed between the centers. This is primarily used for reed-
ing or fluting (cutting decorative grooves vertically up the length of the spindle) usually with the help of a shop
made jig and router.
NEVER TURN ON THE LATHE WHEN THE HEADSTOCK SPIN-
DLE IS LOCKED IN PLACE. ALWAYS, TURN OFF AND
UNPLUG THE LATHE FROM THE POWER SOURCE, BEFORE
INSERTING THE INDEXING PIN TO LOCK THE SPINDLE.
TURNING ON THE LATHE AFTER THE INDEXING PIN (OR
ANY OTHER OBJECT) HAS BEEN INSERTED INTO THE HEAD-
STOCK INDEXING HOLE, THEREBY PREVENTING THE HEAD-
STOCK SPINDLE FROM TURNING, CAN LEAD TO SERIOUS
INJURY, DAMAGE TO THE WORKPIECE, OR DAMAGE TO THE
LATHE AND THE MOTOR.
To lock the spindle:
1. Loosen the indexing pin A.
2. While slowly turning the flywheel B by hand, press
the indexing pin in until the pin finds and bottoms
out in an indexing hole, then re-tighten the index-
ing pin.
3. Complete the desired cut, groove or other opera-
tion on the spindle.
4. If further grooves are required, loosen the pin
again and slowly turn the spindle until the pin locks
into the next, or the desired position.
Note: There are 36 evenly spaced holes in the headstock
spindle allowing for indexing at 10° increments (360°/36
C
positions = 10°)
, allowing for a wide variety of symmet-
rical decorative grooves or patterned cuts.
A
4. Using the tailstock locking lever, secure the tail
5. Look down at the two centers from above B to ve-
6. If the points are not lined up release the head-
7. With the points lined up, hold the headstock in
8. With the points lined up, proceed with normal
TOP VIEW
C
B
stock on the bed with the points still touching.
rify that the points are in alignment. If the points line
up, proceed with normal turning operations.
stock locking lever and manually adjust the
headstock position using the play in the head-
stock to line up the center points C.
place and tighten the headstock locking lever.
turning operations.
B
A
C
17

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