Wood Lathe Operation - Grizzly G0733 Owner's Manual

Wood Lathe Operation

Symptom
vibration noise while
machine is running; noise
changes when speed is
changed.
excessive vibration (with
workpiece installed).
Chisels grab or dig into
workpiece.
Bad surface finish on
workpiece.
tailstock moves under
load.
Can't remove tapered tool
from tailstock barrel.
-38-
possible cause
1. Belt cover loose.
1. Workpiece mounted incorrectly.
2. headstock, tailstock, or tool rest not
securely clamped to lathe bed.
3. Workpiece warped, out of round, or
is flawed.
4. spindle speed is set too fast for
mounted workpiece.
5. lathe is resting on an uneven sur-
face.
6. motor mount bolts are loose.
7. Belt is worn or damaged.
8. spindle bearings are worn.
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. Wrong spindle speed.
2. dull chisel or wrong chisel being
used for the operation.
1. tailstock mounting bolt loose.
2. Bed surface is oily or greasy.
1. tailstock barrel not retracted all the
way back into the tailstock.
2. debris was not removed from taper
before inserting into barrel.
corrective Action
1. tighten the screws that secure the belt cover; if
necessary install a soft, vibration dampening mate-
rial between the belt cover and the headstock cast-
ing.
1. re-mount workpiece, making sure that centers are
embedded in true center of workpiece.
2. Check clamp levers and tighten if necessary.
3. Cut workpiece to correct, or use a different
workpiece.
4. reduce the spindle speed.
5. shim stand or adjust feet on stand to remove any
wobbles present in the stand.
6. tighten motor mount bolts.
7. replace belt (see page 39).
8. replace spindle bearings.
1. set tool rest higher. see page 22 for how to prop-
erly set the tool rest height.
2. move the tool rest closer to the workpiece. see
page 22 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.
1. use trial-and-error to find a better spindle speed.
2. sharpen chisel or try a different chisel.
1. tighten.
2. Clean bed surface to remove excess oil/grease.
1. turn the barrel handwheel until it forces taper out of
barrel.
.
2 always make sure that taper surfaces are clean.
Model G0733 (Mfg. Since 10/11)