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G0456 Variable Speed Wood Lathe
-31-
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
Workpiece vibrates exces-
sively.
1. Workpiece mounted incorrectly.
2. Workpiece warped, out of round, or
is flawed.
3. Spindle speed is set too fast for
mounted workpiece.
1. Re-mount workpiece, making sure that centers are
embedded in true center of workpiece.
2. Cut workpiece to correct, or use a different
workpiece.
3. Reduce the spindle speed.
Chisels grab or dig into
workpiece.
1. Tool rest set too low.
2. Tool rest set too far from workpiece.
3. Wrong chisel/tool being used.
4. Chisel/tool dull.
1. Set tool rest higher. See
Page 17 for how to prop-
erly set the tool rest height.
2. Move the tool rest closer to the workpiece. See
Page 17 for the proper workpiece/tool rest clear-
ance.
3. Use the correct chisel/tool; educate yourself by
reading books, trade magazines, or seeking help
from an experienced lathe operator.
4. Sharpen or replace the chisel/tool you are using.
Bad surface finish. 1. Wrong spindle speed.
2. Dull chisel or wrong chisel being
used for the operation.
1. Use trial-and-error to find a better spindle speed.
2. Sharpen chisel or try a different chisel.
Inaccurate turning results
from one end of the
workpiece to the other.
1. Headstock and tailstock are not
properly aligned with each other.
1. Realign the tailstock to the headstock. See
Page
32.
Tailstock moves. 1. Tailstock mounting bolt loose.
2. Too much clamping pressure
applied by tailstock.
3. Bed surface is oily or greasy.
1. Tighten.
2. Apply less clamping pressure with tailstock.
3. Clean bed surface to remove oil/grease.
Hard to remove tapered
tool from tailstock barrel.
1. Tailstock barrel had not retracted all
the way back into the tailstock.
2. Debris was not removed from taper
before inserting into barrel.
3. Tapers have rust.
1. Turn the barrel handwheel until it forces taper out of
barrel.
2. Always clean tapers before installing.
3. Remove rust and wipe down with metal protectant;
do not keep tapers installed when not in use.
Wood Lathe Operation