28 | Page Oliver Machinery 2019 Lathe
Setting Spindle Speed Range
This lathe has two speed ranges and a variable speed dial, which allows the woodturner to set the
optimum speed and torque for turning. With the low speed range, the spindle can go between 50-950
RPM with more torque. The high speed range, 170-3200 RPM, is for turning blanks with small diameters.
To adjust the spindle speed range:
1. Make sure the lathe is unplugged from the
power source.
2. Open the motor access door and the drive
access door.
3. Loosen the motor lock lever, then raise and
lock the motor at the highest position. This
gives the clearance needed to walk the drive
belt to a different position on the pulley.
4. Shift the drive belt to the right for the low
speed range and left for the high speed
range.
5. Rotate the spindle and walk the belt to the
new position on the pullies. Ensure the drive
belt is seated properly on the grooves of
both pulleys.
6. Push down on the motor handle to tension
the drive belt, then tighten the motor lock to
lock the motor in place.
7. Check belt tension. The belt should not
deflect by more than 1/4” when pressed
down between the pulleys with a finger.
Retighten the belt as needed.
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