Table of Contents
Advertisement
Wood Lathe Operation
Symptom
Possible Cause
Bad surface finish.
1. Dull tooling or wrong tool used for task.
2. Tool height is not
centerline.
3. Spindle speed is wrong.
4. Excessive vibration.
Excessive vibration
1. Workpiece is mounted incorrectly.
upon startup
(when workpiece is
2. Workpiece warped, out of round, or flawed.
installed).
3. Spindle speed too fast for workpiece.
4. Workpiece hitting stationary object.
5. Headstock, tailstock, or tool rest not
securely clamped to lathe bed.
6. Belt pulleys are not properly aligned.
7. Lathe is resting on an uneven surface.
8. Motor mount bolts are loose.
9. Belt is worn or damaged.
10. Spindle bearings are worn or damaged.
Chisel grabs or digs
1. Wrong chisel/tool being used.
into workpiece.
2. Chisel/tool is too dull.
3. Tool rest height not set correctly.
4. Tool rest is set too far from workpiece.
Tailstock moves
1. Tailstock mounting bolt is loose.
under load.
2. Bed or clamping surface is excessively oily
or greasy.
Spindle lacks
1. Belt is slipping.
turning power or
2. Pulleys loose.
starts up slowly.
3. Workpiece too heavy for spindle.
Quill will not move
1. Keyway is not aligned with quill lock lever.
forward when
handwheel is turned
Model G0799 G0800 (Mfd. Since 11/17)
⁄
" above spindle
1
8
Possible Solution
1. Sharpen tooling, select correct tool for operation.
2. Adjust tool rest so tool is
centerline.
3. Adjust for appropriate spindle speed (Page 35).
4. Troubleshoot possible causes/solutions in this table.
1. Remount workpiece, making sure that centers are
embedded in true center of workpiece.
2. Cut workpiece to correct, or use a different
workpiece.
3. Reduce spindle speed (Page 35).
4. Stop lathe and fix interference problem.
5. Check clamp levers and tighten if necessary (Pages
29–30).
6. Align belt pulleys (Page 49).
7. Shim stand or adjust feet to eliminate wobbles.
8. Tighten motor mount bolts.
9. Replace belt (Page 48).
10. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
1. Use correct chisel/tool.
2. Sharpen or replace chisel/tool.
3. Correct tool rest height (Page 30).
4. Move tool rest closer to workpiece.
1. Tighten mounting bolt.
2. Clean bed or clamping surface to remove excess
oil/grease.
1. Tighten/adjust belt (Page 48).
2. Tighten pulley set screw; re-align/replace shaft,
pulley set screw, and key.
3. Remove excess material before remounting; use
lighter workpiece.
1. Align quill keyway and quill lock lever and slightly
tighten lever to engage keyway.
⁄
" above spindle
1
8
-47-
Advertisement
Table of Contents
