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Troubleshooting
Problem Possible Cause Solution
Excessive vibration.
1. Workpiece warped, out of
round, has major flaw, or was
improperly prepared for
turning
2. Worn spindle bearings
3. Worn belt
4. Motor mount bolt or handle
loose
5. Lathe on uneven surface
1. Correct problem by planing,
bandsawing, or scrap the
workpiece all together
2. Replace bearings
3. Replace belt
4. Tighten bolt or handle
5. Shim lathe bed, or adjust feet
on stand
Motor or spindle stalls or will not
start
1. Excessive cut
2. Worn motor
3. Broken belt
4. Worn spindle bearings
5. Improper cooling on motor
1. Reduce cut depth
2. Replace motor
3. Replace belt
4. Replace bearings
5. Clean sawdust from motor
fan
Motor fails to develop full power.
1. Power line overloaded
2. Undersize wires in supply
system
3. Low voltage
4. Worn motor
1. Correct overload condition
2. Increase supply wire size
3. Request voltage check from
power company and correct
low voltage condition
4. Replace motor
Tools tend to grab or dig in.
1. Dull tools
2. Tool support set too low
3. Tool support set too far from
workpiece
4. Improper tool being used
1. Sharpen tools
2. Reposition tool support
height
3. Reposition tool support
closer to workpiece
4. Use correct tool for operation
Tailstock moves when applying
pressure
1. Excessive pressure being
applied by tailstock. Note:
The screw action of the
tailstock is capable of
applying excessive pressure
to workpiece and headstock.
Apply only sufficient force by
tailstock to hold workpiece
securely in place. Excessive
pressure can cause damage
to machine.
2. Lathe bed and tailstock
mating surfaces are greasy
or oily.
1. Slide tailstock down to the
right side of the lathe against
the stop. Move headstock
into position and apply
pressure to workpiece with
tailstock.
2. Remove and clean surfaces
with a cleaner degreaser
Digital readout does not work
1. Digital readout sensor out of
position
1. Open the belt access and
position the sensor so that it
reads the bolts