7
Setting/Changing Spindle Speed
The Excelsior Mini Lathe can be set at five different speeds: 760
rpm, 1,100 rpm, 1,600 rpm, 2,200 rpm. and 3,200 rpm. Fig. 2.
To set the lathe speed:
1. Loosen the top knobs on the Side Belt Access Cover and the
Rear Belt Access Cover. Rotate the access covers out of the
way so you can reach the Drive Belt. Tighten the knobs to
hold the access covers in the open position.
2. Loosen the Belt Tension Lever Lock Handle until you can
lift the Belt Tension Lever freely. This will allow you to
move the Drive Belt.
3. Continuing to lift the Belt Tension Lever as necessary, move
the Drive Belt to the appropriate set of pulleys for the speed
you want. Make sure that the belt is securely positioned on
complementary top and bottom pulleys. Do NOT position
the belt so that it is running at an angle. Fig. 2.
4. Lower the Belt Tension Lever until tension is restored to the
belt. (You should be able to deflect the belt inward about
1/2".) Spin the Headstock Wheel by hand to make sure
the drive belt doesn’t wander or drift.
5. Tighten the Belt Tension Lever Lock Handle.
6. Return the Side Belt Access Cover and the Rear Belt Access
Cover to the closed position and secure them in place.
7. Plug in and briefly turn on the lathe to verify that the speed
will be suitable for the size of object you are turning. (Speeds
for spindle turning are higher than speeds for bowl turning;
in general, the larger the diameter of the workpiece, the
slower the speed.)
Fig. 2 - Viewed from back of lathe
> Always turn off and unplug the lathe before adjusting
the belt to change the spindle speed.
> Always use the lowest speed (rpm) when starting
a new workpiece.
Always close and secure both the Side
Belt Access Cover and the Rear Belt Access Cover before
turning on the lathe.
760 RPM
1100 RPM
1600 RPM
2200 RPM
3200 RPM
Drive Pulley
(Top)
Belt
Motor Pulley
(Bottom)
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