-39-
Model W1856 (For Machines Mfd. Since 02/19)
SE
RV
IC
E
PROBLEM
POSSIBLE.CAUSE
CORRECTIVE.ACTION
Bad surface
finish.
1. Dull tooling or wrong tool used for task.
2. Tool height is not
1
⁄
8
" above spindle center-
line.
3. Spindle speed is wrong.
4. Excessive vibration.
1. Sharpen tooling, select correct tool for operation.
2. Adjust tool rest so tool is
1
⁄
8
" above spindle
centerline.
3. Adjust for appropriate spindle speed (
Page 24).
4. Troubleshoot possible causes/solutions in this
table.
Excessive vibra-
tion upon startup
(when workpiece
is installed).
1. Workpiece is mounted incorrectly.
2. Workpiece warped, out of round, or flawed.
3. Lathe is resting on an uneven surface.
4. Spindle speed too fast for workpiece.
5. Workpiece hitting stationary object.
6. Tailstock or tool rest not securely clamped
to lathe bed.
7. Belt pulleys are not properly aligned.
8. Motor mount bolts are loose.
9. Belt is worn or damaged.
10. Spindle bearings are worn or damaged.
1. Remount workpiece, making sure that centers are
embedded in true center of workpiece.
2. Cut workpiece to be concentric, or use a different
workpiece.
3. Adjust rubber feet to eliminate wobble.
4. Reduce spindle speed (
Page 24).
5. Stop lathe and fix interference problem.
6. Check lock levers and tighten if necessary (
Pages
19–20).
7. Align belt pulleys (
Page 36).
8. Tighten motor mount bolts.
9. Replace belt (
Page 34).
10. Test by rotating shaft; rotational grinding/loose
shaft requires bearing replacement.
Chisel grabs
or digs into
workpiece.
1. Wrong chisel/tool being used.
2. Chisel/tool too dull.
3. Tool rest height not set correctly.
4. Tool rest is set too far from workpiece.
1. Use correct chisel/tool.
2. Sharpen or replace chisel/tool.
3. Correct tool rest height (
Page 20).
4. Move tool rest closer to workpiece.
Tailstock moves
under load.
1. Tailstock mounting bolt/hex nut is loose.
2. Bed or clamping surface is excessively oily or
greasy.
1. Tighten mounting bolt/hex nut.
2. Clean bed or clamping surface to remove excess
oil/grease.
Spindle lacks
turning power or
starts up slowly.
1. Belt is slipping.
2. Pulleys loose.
3. Workpiece too heavy for spindle.
1. Tighten/adjust belt (
Page 34).
2. Tighten pulley set screws; re-align/replace shaft,
pulley set screws, and key.
3. Remove excess material before remounting; use
lighter workpiece.
Quill will not
move forward
when handwheel
is turned.
1. Keyway is not aligned with quill lock lever.
1. Align quill keyway and quill lock lever and slightly
tighten lever to engage keyway.
Spindle speed
tachometer
doesn't give
reading; reading
incorrect.
1. Shorted/disconnected wiring/plugs.
2. Variable-speed potentiometer at fault.
3. Spindle speed sensor at fault.
4. Tachometer circuit board at fault.
1. Inspect wiring connections on circuit boards, sen-
sors, and plugs. Replace/repair as necessary.
2. Test/replace if at fault.
3. Test/replace if at fault.
4. Inspect/replace if at fault.
Wood.Lathe.Operation
