Changing Spindle Speed; Tool Rest Carriage & Swivel Arm And Tool Rest Adjustments - General International 25-650ABC M1 Setup & Operation Manual

To change the speed range:
1. Unplug the machine from the power source.
2. Open the belt guard cover A located on top of the
headstock.
3. Loosen the motor tension lock knob B and pull the
belt tension release lever C towards you.
4. Place the drive belt in the desired speed range shown
on the chart inside the headstock cover.
With the belt slack, rotate the spindle by hand while
gently pushing the belt onto the desired pulley posi-
tion. Make sure the grooves in the belt are aligned
with the grooves in the pulley and the belt runs "true".
5. Re-tension the belt by pushing the tension release
lever C away from you and tighten the motor tension
lock knob B when the belt is tensioned. Do not over-
tighten. The belt should deflect about 1/8 to 1/4" of an
inch when pressed moderately with your finger
between the 2 pulleys.
6. Turn the speed control knob D to the desired speed.
The digital spindle speed readout E will indicate the
current speed.

CHANGING SPINDLE SPEED

Note: Turning speeds vary depending on the size and dia-
meter of the workpiece as well as which stage you are at in
the overall turning process.
When turning a smaller diameter workpiece, a higher spindle
speed is recommended.
Proper spindle speed selection comes with practice and
experience and when in doubt always start at a slower speed
increasing when you are sure that it is safe to do so.
Use the chart as a basic guideline for selecting appropri-
ate spindle speed.
TOOL REST CARRIAGE & SWIVEL ARM AND TOOL REST ADJUSTMENTS
The tool rest carriage can be moved along the bed slide
ways and swiveled as needed. Loosen the tool rest car-
riage lever A and move the carriage to the desired loca-
tion. Re-tighten the lever securely after adjustment.
The tool rest swivel arm allows for even more positional
adjustment as both the swivel arm in the tool rest carriage
mounting hole B and the tool rest in the swivel arm moun-
ting hole C can be swiveled as needed for accurate and
convenient tool rest positioning.
The tool rest should be adjusted so that its top is 1/8"
above the center of the workpiece. Loosen the tool rest
locking lever D and adjust the height and position of the
tool rest as needed. Re-tighten the lever securely after
adjustment.
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A
C
B
D
C
B
E
A
D